Contents

Section 10—General Information

Group 05—Safety
Group 15—Protective Coatings
Group 20—Electronic Components
Group 25—Serial Number Locations

Section 20—Diagnostics
Group 05—Fault Diagnosis
Group 10—Observed Diagnostics

Section 30—Mower
Group 05—Component Location
Group 10—Theory of Operation
Group 20—Tests and Adjustments
Group 25—Repair

Section 40—Drive System

Group 05—Component Location
Group 10—Theory of Operation
Group 15—Tests and Adjustments
Group 20—Repair

Section 50—Electrical
Group 05—Schematics and Harnesses
Group 10—Component Location
Group 15—Theory of Operation
Group 25—Tests and Adjustments
Group 30—Repair

Section 60—Seasonal Services

Group 05—Post Season Services
Group 10—Off Season Services
Group 15—Pre Season Services
Group 20—Mower and Installation Inspection Log

Original Instructions. All information, illustrations and specifications in this

manual are based on the latest information available at the time of publication.
The right is reserved to make changes at any time without notice.
COPYRIGHT © 2013
John Deere GmbH & Co. KG Mannheim Regional Center
Zentralfunktionen
All rights reserved.
A John Deere ILLUSTRUCTION ® Manual
Previous Editions
Copyright © 2012, 2013

TM115019 (11DEC13) i 021814

PN=1
Contents

TM115019 (11DEC13) ii 021814

PN=2
Section 10
General Information
Contents

Page

Group 05—Safety
Follow Safety Instructions.............................. 10-05-1
Recognize Safety Information ....................... 10-05-1
Understand Signal Words.............................. 10-05-1
Replace Safety Signs .................................... 10-05-2
Prepare for Emergencies............................... 10-05-2
Handling Batteries Safely .............................. 10-05-3
Prevent Battery Explosions ........................... 10-05-4
Use Care In Handling and Servicing
Batteries .................................................... 10-05-4
Wear Protective Clothing............................... 10-05-4
Use Proper Tools ........................................... 10-05-5
Park Machine Safely...................................... 10-05-5
Service Machine Properly.............................. 10-05-5
Work in Clean Area ....................................... 10-05-5
Washing Machine .......................................... 10-05-5
Illuminate Work Area Safely .......................... 10-05-6
Work in an ESD Safe Area ............................ 10-05-6
Dispose of Waste Properly ............................ 10-05-6
Live With Safety............................................. 10-05-7

Group 15—Protective Coatings

Dielectric Grease ........................................... 10-15-1
Anti-Corrosion Grease................................... 10-15-1

Group 20—Electronic Components

Summary of References................................ 10-20-1
Handling and Protection of
Electronic Components ............................. 10-20-1
Reducing Static Electricity
Generation................................................. 10-20-1
Dissipating Built-Up Static
Charge....................................................... 10-20-1
Correct Handling of Equipment ..................... 10-20-1
Using Protective Devices............................... 10-20-2

Group 25—Serial Number Locations

Product Identification Number
Location ..................................................... 10-25-1
Vehicle Control Unit (VCU)
Identification Number................................. 10-25-1
Charge Station Identification
Number...................................................... 10-25-1

TM115019 (11DEC13) 10-1 021814

PN=1
Contents

TM115019 (11DEC13) 10-2 021814

PN=2
Group 05
Safety
Follow Safety Instructions
Carefully read all safety messages in this instruction. Read
the product operators manual for operating instructions
and safety messages. Do not let anyone operate without
instruction. (A copy of the operators manual may also be
available from the Service ADVISOR™ application.)

TS201 —UN—15APR13
Service ADVISOR is a trademark of Deere & Company
DX,READ,INS -19-23JUN09-1/1

Recognize Safety Information

This is a safety-alert symbol. When you see this symbol
on your machine or in this manual, be alert to the potential
for personal injury.
Follow recommended precautions and safe operating

T81389 —UN—28JUN13
practices.

DX,ALERT -19-29SEP98-1/1

Understand Signal Words

A signal word—DANGER, WARNING, or CAUTION—is
used with the safety-alert symbol. DANGER identifies the
most serious hazards.
DANGER or WARNING safety signs are located near
specific hazards. General precautions are listed on

TS187 —19—30SEP88
CAUTION safety signs. CAUTION also calls attention to
safety messages in this manual.

DX,SIGNAL -19-03MAR93-1/1

TM115019 (11DEC13) 10-05-1 021814

PN=7
Safety

Replace Safety Signs

Replace missing or damaged safety signs. Use this
operator’s manual for correct safety sign placement.
There can be additional safety information contained on
parts and components sourced from suppliers that is not
reproduced in this operator's manual.

TS201 —UN—15APR13
DX,SIGNS -19-18AUG09-1/1

Prepare for Emergencies

Be prepared if a fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,
hospital, and fire department near your telephone.

TS291 —UN—15APR13
DX,FIRE2 -19-03MAR93-1/1

TM115019 (11DEC13) 10-05-2 021814

PN=8
Safety

Handling Batteries Safely

Battery components can react with water. Keep battery
away from water.
Always disconnect battery wiring harness connector
immediately after removing mower cover.

TS204 —UN—15APR13
Use computer with MowADVISOR installed or mower
User Interface to check battery charge.
Battery elements are poisonous and strong enough to
burn skin, eat holes in clothing, and cause blindness with
eye contact.
Avoid hazards:
• Do not use water to clean mower.
• Do not use water or air pressure to clean battery.
• Do not expose battery to heat in excess of 70 degrees
C (158 degrees F).
• Wear eye protection and rubber gloves when handling
damaged battery.
• Avoid breathing fumes from damaged battery.
• Avoid contact with damaged battery.
• Use correct battery charging procedure.
• Do not charge battery in an enclosed space.
• Charge battery only with the provided power supply.
• Ensure that battery is stored and serviced in a well
ventilated area.
• Do not leave mower connected to charging station
during off season storage.
• Store machine in a cool and dry protected area during
off season storage.
• Do not store machine or charge battery in wet areas or
areas subject to flooding.
If electrolyte is spilled on skin or in eyes:

TS203 —UN—23AUG88
1. Remove contaminated garments.
2. Flush skin with water for at least 15 minutes.
3. Flush eyes with water for at least 15 minutes. Hold
eyelids open to rinse thoroughly.
4. For significant exposure, get immediate medical
attention.
If electrolyte is swallowed:
1. Move to fresh air.
1. Do not induce vomiting. 2. Monitor airway, breathing, and circulation.
2. Drink large amounts of water or milk, but do not 3. For significant exposure, get immediate medical
exceed 2 L (2 qt.). attention.
3. Get medical attention immediately.
Wash hands after handling battery.
If fumes from damaged battery are inhaled:
SW00544,00001DB -19-13MAR13-1/1

TM115019 (11DEC13) 10-05-3 021814

PN=9
Safety

Prevent Battery Explosions

Do not expose battery to heat. Battery may be damaged
or explode.
Use computer with MowADVISOR installed or mower
User Interface to check battery charge.

TS204 —UN—15APR13
Do not charge a frozen battery; it may explode. Allow
battery to warm in an ambient temperature of 16°C (60°F)
before charging.

SW00544,00001DC -19-13MAR13-1/1

Use Care In Handling and Servicing Batteries Store machine in a cool and dry protected area during off
IMPORTANT: Avoid Damage! If the machine is season storage.
damaged through immersion in water, or Do not leave mower connected to charging station during
exposure to high heat, impact, or other forces off season storage.
strong enough to distort the mower or battery
housing, contact a service representative Charge battery only with the provided power supply.
immediately. Disconnect the battery as soon
as possible. Do not store the machine in an Do not charge battery in an enclosed space.
area where reaction from a damaged battery Do not store machine or charge battery in wet areas or
could cause other damage. Do not store a areas subject to flooding.
damaged machine in an enclosed area.
OUMX258,00002D6 -19-17AUG12-1/1

Wear Protective Clothing

Wear close fitting clothing and safety equipment
appropriate to the job.
Prolonged exposure to loud noise can cause impairment
or loss of hearing.

TS206 —UN—15APR13
Wear a suitable hearing protective device such as
earmuffs or earplugs to protect against objectionable or
uncomfortable loud noises.
Operating equipment safely requires the full attention of
the operator. Do not wear radio or music headphones
while operating machine.
DX,WEAR -19-10SEP90-1/1

TM115019 (11DEC13) 10-05-4 021814

PN=10
Safety

Use Proper Tools

Use tools appropriate to the work. Makeshift tools and
procedures can create safety hazards.
Avoid ESD damage to electronic components. Do not use
power tools to loosen threaded parts or fasteners.

TS779 —UN—08NOV89
For loosening and tightening hardware, use the correct
size tools. DO NOT use U.S. measurement tools on metric
fasteners. Avoid bodily injury caused by slipping tools.
Use only service parts meeting John Deere specifications.

SW00544,00001DD -19-13MAR13-1/1

Park Machine Safely 2. Turn main switch to OFF position.

3. Hang a “DO NOT OPERATE” tag on the machine.
Before working on the machine:
1. Press the top-mounted STOP switch.
OUMX258,00002D3 -19-23DEC11-1/1

Service Machine Properly

When working on a raised station, securely support the
Always lift machine by rear handle. Carry machine with machine to prevent it from falling.
blade facing away from body.
Removing or installing components incorrectly can cause
Cover work surfaces with a soft cloth to prevent damage machine damage. Follow recommended procedure for
to machine surfaces. removal and installation of components in this manual.
OUMX258,00002D4 -19-23DEC11-1/1

Work in Clean Area

IMPORTANT: Avoid Damage! Do not use water from
a hose to clean the work area if the machine is
in or near the work area. Do not use water to
clean the machine. Use a soft cloth or brush to
clean exterior surfaces of the machine only.

T6642EJ —UN—18OCT88
Before starting a job:
• Clean work area. Remove any plastic items that might
store a static charge.
• Use a dry cloth or bush to remove any dirt, grass
clippings, or debris from mower exterior surfaces. Do
not use water to clean mower.
• Make sure you have all necessary tools to do your job.
• Read all instructions thoroughly; do not attempt
• Have the right parts on hand. shortcuts.
SW00544,00001E8 -19-10APR13-1/1

Washing Machine bearings, or other sensitive parts and

components may cause product malfunctions..
IMPORTANT: Avoid Damage! Do not use water
to clean the machine. Directing pressurized Do not use water to clean the machine. Clean exterior
water at electrical components or connectors, machine surfaces only, using a brush or soft cloth.
SW00544,00001DE -19-13MAR13-1/1

TM115019 (11DEC13) 10-05-5 021814

PN=11
Safety

Illuminate Work Area Safely

Illuminate your work area adequately but safely. Use
a portable safety light for working inside or under the
machine. Make sure the bulb is enclosed by a wire cage.
The hot filament of an accidentally broken bulb can ignite
spilled fuel or oil.

TS223 —UN—23AUG88
DX,LIGHT -19-04JUN90-1/1

MXT003366 —UN—20AUG12
Work in an ESD Safe Area
Electronic components can be damaged through
ElectroStatic Discharge (ESD). ESD sensitive devices
should only be handled or installed at a properly set
up ESD workstation. ESD kit JDG11451, a grounded,
conductive mat and wrist strap, are basic elements of
an ESD workstation. The mat and wrist strap should be
connected to an electrical ground. Installation of ground
fault interrupters (GFCIs) is recommended for work area
outlets. Other safeguards must be followed in order to
prevent damage to ESD sensitive devices. See Service
Area Setup.
SW00544,000011F -19-11DEC13-1/1

Dispose of Waste Properly

Do not incinerate, or subject mower battery to
temperatures in excess of 70°C (158°F). Dispose of
battery in accordance with appropriate local regulations.
Improperly disposing of waste can threaten the

TS1133 —UN—15APR13
environment and ecology. Potentially harmful waste used
with John Deere equipment include such items as oil, fuel,
coolant, brake fluid, filters, and batteries.
Use leakproof containers when draining fluids. Do not use
food or beverage containers that may mislead someone
into drinking from them.
Do not pour waste onto the ground, down a drain, or into
any water source.
Inquire on the proper way to recycle or dispose of waste
from your local environmental or recycling center, or from
your John Deere dealer.
SW00544,00001DF -19-13MAR13-1/1

TM115019 (11DEC13) 10-05-6 021814

PN=12
Safety

Live With Safety

Before returning machine to customer, make sure
machine is functioning properly, especially the safety
systems. Install all guards and shields.

TS231 —19—07OCT88
DX,LIVE -19-25SEP92-1/1

TM115019 (11DEC13) 10-05-7 021814

PN=13
Safety

TM115019 (11DEC13) 10-05-8 021814

PN=14
Group 15
Protective Coatings
Dielectric Grease
The following product meets both the dielectric and anti
Dielectric grease is a specialized form of non conducting corrosion protection requirements for this product.
grease which is formulated to provide protection for
electrical components against entry of water or other • TY25744 Multi Purpose Extreme Duty Synthetic Grease
contamination. IMPORTANT: Use of alternative lubricants could
Dielectric grease is applied to the wire harness terminals result in reduced life of components.
on the main power switch and to charge station guide loop
and boundary wire terminals to maintain good contact at
these connections.
OUMX258,00002DA -19-19JUL12-1/1

Anti-Corrosion Grease
• TY25744 Multi Purpose Extreme Duty Synthetic Grease
Application of anti-corrosion grease to the cutting blade The following grease is preferred for anti corrosion
at the end of the mowing season will help to prevent protection only:
corrosion during storage. Grease should be removed from
the blade before putting the machine back into use. • DuBois MPG-2 Multi-Purpose Polymer Grease
Anti-corrosion grease is formulated to provide the best Other greases may be used if they meet or exceed the
protection against absorbing moisture, which is one of following specification:
the major causes of corrosion. This grease is superior in
resistance to separation and migration. • John Deere Standard JDM J13A2, NLGI Grade 1
The following product meets both the dielectric and anti
corrosion protection requirements of the machine.
OUMX258,00002DB -19-19JUL12-1/1

TM115019 (11DEC13) 10-15-1 021814

PN=15
Protective Coatings

TM115019 (11DEC13) 10-15-2 021814

PN=16
Group 20
Electronic Components
Summary of References • Dissipating Built-Up Static Charge
• Handling and Protection of Electronic Components • Correct Handling of Equipment
• Reducing Static Electricity Generation • Using Protective Devices
OUMX258,000030B -19-29DEC11-1/1

Handling and Protection of Electronic • Exercise care when removing or installing components.
Components Ensure that components or connectors are properly
aligned and are moved only within alignment guides.
Proper handling of electronic components is necessary to • Do not forcibly install components or connectors.
avoid damage to the components. Damage to electronic Inspect connectors for obstructions or bent pins if
components may result in immediate failure or in reduced resistance is felt.
service life. Component damage may be physical or
through exposure to electrostatic discharge (ESD) Electrostatic discharge (ESD) damage most often results
in destruction of internal connections or insulating layers of
Physical damage may occur through improper storage, or the device. To prevent damage to electronic components
from careless handling during removal, transportation, from electrostatic discharge:
or installation. To prevent physical damage to electronic
components: • Reduce static electricity generation.
• Safely dissipate built-up static charge.
• Store electronic components in a cool, humidity • Handle components correctly.
controlled place • Use workstation protective devices including ESD kit
• Keep electronic components in original, closed antistatic JDG11451.
shipping packages until the time of installation.
OUMX258,00002DC -19-12APR13-1/1

Reducing Static Electricity Generation • Keep all plastic items such as chairs or chair cushions,
synthetic carpeting, foam cups and containers, and
Reducing generation of static electricity is critical when plastic wrappers away from areas where electronic
working with electronic components that can be damaged components are stored or handled.
through electrostatic discharge.
• Use a work area properly set up to avoid generation of
• Wear clothing made from organic fabrics such as static electricity. Work surfaces, floor or floor covering,
cotton or cotton blends which are less likely to store an and seating surfaces should be made of materials
electrostatic charge. designed to avoid generation of static charge.
• Avoid clothing made from synthetic fabrics, which can • Maintain a minimum level of humidity in the work area
generate and store an electrostatic charge. that will prevent the build-up of a static charge.
OUMX258,00002DD -19-29DEC11-1/1

Dissipating Built-Up Static Charge • Use grounding devices such as ESD kit JDG11451 at
the work station..
Built-up static charges should be safely dissipated before
electronic components susceptible to damage from
• Touch and momentarily hold the machine frame
before touching or removing any mounted electronic
electrostatic discharge are handled. component or connecting cable.
• Dissipate any built-up static charge by touching and
momentarily holding a grounded metal object.
OUMX258,00002DE -19-12APR13-1/1

Correct Handling of Equipment • Ensure that all power is shut off before any wire harness
connections are removed or installed.
Correct handling of electronic assemblies or components
will help to avoid opportunities for damage.
• Hold circuit boards only by the edge, avoiding contact
with mounted components or conductors.
• Only handle or work with an ESD sensitive device at a • When disconnecting a cable, always pull on the cable
properly set up ESD workstation. connector. Do not pull on the cable itself.

OUMX258,00002DF -19-29DEC11-1/1

TM115019 (11DEC13) 10-20-1 021814

PN=17
Electronic Components

Using Protective Devices • Keep replacement electronic components or component

assemblies in their original, closed anti static shipping
Use protective devices to avoid exposing components or packages until the time of installation at the work area.
assemblies to electrostatic discharge.
• It is good practice to install a sign displaying the ESD
• Use a grounding wrist strap and mat (ESD kit JDG11451) symbol in areas where ESD sensitive devices are
when working with circuit boards or components that stored or worked with.
can be damaged through electrostatic discharge.
• Store removed electronic components or circuit boards
known to be good in a closed anti static container.
OUMX258,00002E0 -19-12APR13-1/1

TM115019 (11DEC13) 10-20-2 021814

PN=18
Group 25
Serial Number Locations
Product Identification Number Location
Product identification number (A), also called serial number
or chassis number, is located on the lower housing at rear
of machine. Printed on the label are model and serial
number, power specification, code compliance, recycling
information, and manufacturer’s contact information.

MXT002148 —UN—06JAN12
A—Label

OUMX258,00002D7 -19-29DEC11-1/1

Vehicle Control Unit (VCU) Identification

Number
The motor controller part number and serial number are
located on a label located at the left side of the main
circuit board.

MXT002149 —UN—06JAN12
A—Label

OUMX258,00002D8 -19-29DEC11-1/1

Charge Station Identification Number

The charge station serial number is located on the back
of the charge station.

A—Serial Number

MXT002150 —UN—06JAN12

Continued on next page OUMX258,00002D9 -19-11APR13-1/2

TM115019 (11DEC13) 10-25-1 021814

PN=19
Serial Number Locations

The power supply serial number is located on a label at

the top of the power supply.

B—Serial number

MXT002151 —UN—06JAN12
MXT006552 —UN—01APR13
Model Year 2013 Power Supply
OUMX258,00002D9 -19-11APR13-2/2

TM115019 (11DEC13) 10-25-2 021814

PN=20
Section 20
Diagnostics
Contents

Page

Group 05—Fault Diagnosis

Summary of References................................ 20-05-1
Fault Display.................................................. 20-05-2
Fault Diagnosis.............................................. 20-05-4
Warning Diagnosis ...................................... 20-05-14

Group 10—Observed Diagnostics

Mowing Diagnostics....................................... 20-10-1
Mower Tracking - Ruts develop in the
turf .............................................................20-10-1
Mower Travel - Mower Travels in a
Spiral Pattern ............................................20-10-1
Mower Performance - Mower Does Not
Cut Grass Evenly ......................................20-10-2
Mower Noise..................................................20-10-2
Mower Blade..................................................20-10-3
Rear Handle Fault .........................................20-10-3
Rear Wheel....................................................20-10-4
Power Switch.................................................20-10-4
User Interface (UI) .........................................20-10-4
Navigation Diagnostics .................................. 20-10-5
Mower Does Not Leave Charging
Station .......................................................20-10-5
Mower Pauses When Leaving
Charging Station .......................................20-10-7
Mower Stopped in Mowing Area....................20-10-8
Mower Stops and Starts in Mowing
Area.........................................................20-10-10
Direction Change.........................................20-10-10
Mower Docking............................................20-10-13

TM115019 (11DEC13) 20-1 021814

PN=1
Contents

TM115019 (11DEC13) 20-2 021814

PN=2
Group 05
Fault Diagnosis
Summary of References • Fault Diagnosis
• Fault Display • Warning Diagnosis
SW00544,0000169 -19-11DEC13-1/1

TM115019 (11DEC13) 20-05-1 021814

PN=23
Fault Diagnosis

Fault Display
NOTE: Fault or warning number assignments may change.
Refer to DTAC for the most up to date code list.

The mower user interface screen (A) displays a code when

an adverse operating condition or component problem is

MXT002073 —UN—12JAN12
detected. Faults are displayed one at a time and need to
be individually cleared. The most relevant active fault is
displayed at the top row of the user interface status bar.
Fault codes are displayed in the format F-nn, and warning
codes as E-nn, with n being the specific code number.
Fault codes indicate system or component operation
outside of set parameters. When a fault condition is
detected, the machine will stop, and the fault code is
stored. A detected fault requires the operator to clear the
fault condition and restart the mower. A—User Interface Screen

Warning codes give information regarding components.

Contact your local authorized John Deere service facility if
the displayed warning code persists.
Condition Displayed Code Condition (Technical) Condition
Fault 1 F-01 Mower Front, Left, or Right Lift (Sustained) Mower Lifted
Fault 2 F-02 Mower Tilted or Flipped (Sustained) Mower Tilted
Fault 3 F-03 Stop Switch Activated Stop Button Pressed
Fault 4 F-04 Bootblock, Application Mismatch Invalid Bootblock Version
Fault 5*** F-05 Unexpected boundary layout, or repeated failure to leave dock Corridor docking fail
Fault 6 F-06 Mower Outside Boundary Outside Boundary
Fault 7 F-07 Failure of Boundary Sensor(s) Boundary Sensor
Fault 8 F-08 Left Traction Motor Over Current Left Motor Over Current
Fault 11 F-11 Left Traction Motor Under Speed Left Motor Stalled
Fault 12 F-12 Right Traction Motor Over Current Right Motor Over Current
Fault 15 F-15 Right Traction Motor Under Speed Right Motor Stalled
Fault 16 F-16 Blade Motor Over Current EXTREME (Stuck Blade) Blade Motor Over Current
Fault 18 F-18 Blade Motor Over Speed Blade Motor Over Speed
Fault 19 F-19 Blade Motor Under Speed Blade Motor Stalled
Fault 20 F-20 Battery Charge Critically Low Battery Charge Low
Fault 21 F-21 Battery Communication Failure Battery Error
Fault 22 F-22 Mower Stuck Mower Stuck
Fault 23 F-23 Micro Controller Temperature Too High Temp Too High
Fault 24 F-24 Rear Handle Touched (Sustained) Rear Handle Touched
Fault 26 F-26 Power Switch OFF Power Switch Off
Fault 27 F-27 Lift Sensor Error Lift Sensor Fault
Fault 28 F-28 Self Test Failure Self Test Failure
Fault 29 F-29 Mower Over Current Motor Over Current
Fault 30 F-30 12v Undervoltage 12v Under Voltage
Fault 31 F-31 12v Over Voltage 12v Over Voltage
Fault 32 F-32 Battery Discharge FET Battery Discharge FET
Fault 33 F-33 Left Motor Controller Fault (MY13 Left Motor Controller
Fault 34 F-34 Right Motor Controller Fault (MY13) Right Motor Controller
Fault 35 F-35 Blade Motor Controller Fault (MY13) Blade Motor Controller
Fault 36 F-36 Voltage on Charge Contacts Inside Mowing Area Charge Voltage
Warning 1** E-01 No Boundary Wire Signal Boundary Signal
Warning 3** E-03 Failure of Boundary Sensor(s) Boundary Sensor
Warning 11** E-11 Left Traction Motor Over Speed Left Motor Over Speed

Continued on next page SW00544,000016A -19-14MAR13-1/2

TM115019 (11DEC13) 20-05-2 021814

PN=24
Fault Diagnosis

Condition Displayed Code Condition (Technical) Condition

Warning 13** E-13 Right Traction Motor Over Speed Right Motor Over Speed
Warning 15** E-15 Blade Motor Over Speed Blade Motor Over Speed
Warning 16** E-16 Blade Motor Under Speed Blade Motor Under Speed
Warning 17** E-17 Mower Lifted Mower Lifted
Warning 18** E-18 Mower Tilted Mower Tilted
Warning 19** E-19 Rear Handle Touched Mower Touched
Warning 21** E-21 Battery Charge Controller Problem Battery Charge FET
Warning 22** E-22 Battery Temp Too High or Too Low Battery Temperature

NOTE: ** indicates a navigation warning (mower commands are set to zero, but user intervention is not required).

NOTE: *** will also occur if Corridor Dock enabled in a normal (non corridor) loop configuration.

SW00544,000016A -19-14MAR13-2/2

TM115019 (11DEC13) 20-05-3 021814

PN=25
Fault Diagnosis

Fault Diagnosis Fault codes indicate system or component operation

Diagnostic Trouble Codes (DTCs) outside of set parameters. When a fault condition is
detected, the machine will stop, and the fault code is
The user interface screen displays a code when an stored. A detected fault requires the operator to clear the
adverse operating condition or component problem is fault condition and restart the mower.
detected. The user interface code is displayed on the
machine as a two digit number.
Symptom Problem Solution

(Fault) 01 Mower front, left, or right lift (sustained) Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check for debris on caster wheel

spindle.

Check for stuck caster wheel spindle.

Check for dislodged caster wheel

spindle snap ring retainer.

Check for excessive wear in caster

wheel spindle housing.

Check for broken lift sensor harness

wire or connector. (See Remove Lift
Sensor.)

Check for loose, misaligned, or

missing lift sensor magnet.

Check for debris between lift sensor

magnet and mower

(Fault) 02 Mower tilted or flipped (sustained) Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Exclude mower from slopes greater

than 20 degrees.

Use MowADVISOR to re-calibrate the

mower tilt sensor on a flat surface;
cycle main power switch off and on.
(See Tilt Sensor Calibration.)

If re-calibration of the tilt sensor does

not eliminate the fault, dock mower in
charge station. Allow mower to charge
for at least 15 minutes to run sensor
self test. Replace vehicle control unit
(VCU) if self test fails.

Continued on next page SW00544,000016B -19-12APR13-1/9

TM115019 (11DEC13) 20-05-4 021814

PN=26
Fault Diagnosis

Symptom Problem Solution

(Fault) 03 Stop switch activated Does the stop button return

immediately when pushed? If not,
replace the UI assembly. (See
Remove Control Panel.)

Check circuit board and switch wire

harness connections.

Check switch magnet. Replace the

magnet if it is weakened or missing.

(Fault) 04 Bootblock, Application Mismatch Connect through Mow ADVISOR to

download current payload information.

(Fault) 05 Unexpected boundary layout, or Press ENTER and then START to

repeated failure to enter or leave dock clear fault; if fault does not clear, go to
next step.

Docking corridor not properly

configured; see Installation Instruction
for charging station corridor installation
requirements.

Mower is corridor dock enabled in

a normal (non corridor) guide loop
configuration. Set mower for non
corridor operation.

(Fault) 06 Mower outside boundary Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Check boundary wires at charge

station for correct polarity; change if
needed.

Check boundary sensor polarity.

Does mower acquire signal from

adjacent mowing area boundary
wire for a different mower? Increase
separation distance between
boundary wires or change schedule to
mow when other mower is charging.

(Fault) 07 Failure of boundary sensor(s) Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Check boundary sensor and sensor

wire harness for proper location and
secure connections.

Continued on next page SW00544,000016B -19-12APR13-2/9

TM115019 (11DEC13) 20-05-5 021814

PN=27
Fault Diagnosis

Symptom Problem Solution

Check wiring harness connector(s)

for full engagement, corrosion, or
physical damage such as bent pins

(Fault) 08 Left traction motor over current Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Move the mower to a different surface.

Remove debris from between rear

wheel and mower housing.

If stuck on an obstacle, remove or

exclude obstacle from mowing area.

Reduce excessive loads - thick turf,

debris, long or steep grades.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Replace motor. (See Remove Wheel

Motor.)

(Fault) 11 Left traction motor under speed Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Left traction motor is stalled. Check for

material wound around motor shaft.

Replace motor. (See Remove Wheel

Motor.)

(Fault) 12 Right traction motor over current Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Move the mower to a different surface.

Remove debris from between rear

wheel and mower housing.

If stuck on an obstacle, remove or

exclude obstacle from mowing area.

Reduce excessive loads - thick turf,

debris, long or steep grades.

Continued on next page SW00544,000016B -19-12APR13-3/9

TM115019 (11DEC13) 20-05-6 021814

PN=28
Fault Diagnosis

Symptom Problem Solution

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Replace motor. (See Remove Wheel

Motor.)

(Fault) 15 Right Traction Motor under speed Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Right traction motor is stalled. Check

for material wound around motor shaft.

Replace motor. (See Remove Wheel

Motor.)

(Fault) 16 Blade motor over current Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Remove debris from between the

mower blade and the blade housing
and mower.

Reduce excessive loads. Change

mowing times to avoid wet grass from
dew, rain, or irrigation.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Replace motor. (See Remove Wheel

Motor.)

(Fault) 18 Blade motor over speed Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Turn mower main power switch OFF.

Ensure that nothing is attached to
mower blade.

Continued on next page SW00544,000016B -19-12APR13-4/9

TM115019 (11DEC13) 20-05-7 021814

PN=29
Fault Diagnosis

Symptom Problem Solution

(Fault) 19 Blade motor under speed Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

Blade motor is stalled. Check for

material wound around motor shaft.

Replace blade motor. (See Remove

Blade Motor and Install Blade Motor.)

(Fault) 20 Battery charge critically low Press ENTER and then START to
clear fault; if fault does not clear, go to
NOTE: When model year 2013 next step.
mower batteries (serial numbers
1SA1312 and 1SA1318) are
charged from a 0% charge
state, the charge will initially
show little increase. It will
take up to 15 minutes to show
more than 0% charge.
Any time the mower shows a
F-20 fault, the mower will pause
to conserve power. Battery
power will be sufficient to save
date and time for 24 hours in a
paused state. If the mower user
interface display disappears,
date and time information will
be lost and must be reset.

The indicated battery charge level is

very low.
Move mower to charge station. Does
indicated charge increase at UI,
continuing to 100%?

If charge does not increase, connect

MowADVISOR cable to mower and
then laptop. (See MowADVISOR
System Check.)

Click on “Manual Test and Calibration”,

then “Press to See Charge Status” on
screen; the mower should be charging
(unless charge is at 100%).

If indicated charge is less than 100%

and battery will not charge, test
battery. (See Battery Tests.)

Continued on next page SW00544,000016B -19-12APR13-5/9

TM115019 (11DEC13) 20-05-8 021814

PN=30
Fault Diagnosis

Symptom Problem Solution

Replace with battery known to be

in good condition. (See Remove
Battery.)

(Fault) 21 Battery communication failure Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Check to see if wire harness

connectors between battery and
power cable are latched.

Check to see if wire harness

connectors between power cable and
VCU are latched.

Remove battery and replace with one

known to be in good condition. (See
Remove Battery.)

Remove VCU and replace with one

known to be in good condition. (See
Remove VCU.)

(Fault) 22 Mower stuck Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Move the mower and clear fault; if

successful, exclude or modify area
where mower was stuck.

Schedule mowing to avoid morning

dew or timed irrigation of mowing area.

(Fault) 23 Microcontroller temp high Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Allow mower to cool, and run at a

cooler time. If the fault does not
return, change mow schedule.

If temperature gauge in MowADVISOR

is not close to ambient air temperature,
proceed with following steps.

NOTE: Specific to 2012 mowers SN

1SA1112 and 1SA1118.

Ensure that mower blade is sharp.

Replace blade if needed. (See
Remove Blade.)

Continued on next page SW00544,000016B -19-12APR13-6/9

TM115019 (11DEC13) 20-05-9 021814

PN=31
Fault Diagnosis

Symptom Problem Solution

NOTE: Specific to 2012 mowers SN

1SA1112 and 1SA1118.

Mow turf to maintenance height with

conventional mower.

NOTE: Specific to 2012 mowers SN

1SA1112 and 1SA1118.

Schedule mowing to avoid morning

dew or timed irrigation of mowing area.

Ensure that charging station is located

in a shaded area.

Replace blade motor with one known

to be in good condition. (See Remove
Blade Motor.)

Replace VCU with one known to be in

good condition. (See Remove VCU.)

(Fault) 24 Rear handle touched Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Change mowing or irrigation

schedules so that they do not coincide.

Trim low-level plantings or move

boundary wire to avoid contact
between landscaping and mower.

Check rear handle sensor for moisture.

If moisture is present, allow to dry with
cover removed. (See Moisture Inside
Mower Housing.) Replace sensor as
needed. (See Remove Rear Handle
Sensor.)

Check sensor wire harness connector

wires and pins for breaks or corrosion.

Check handle drain vents for

blockage; clean if needed.

(Fault) 26 Power switch off NOTE: Specific to 2012 mowers (SN

1SA1112 and 1SA1118).

Turn power switch on.

(Fault) 27 Left sensor error Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Continued on next page SW00544,000016B -19-12APR13-7/9

TM115019 (11DEC13) 20-05-10 021814

PN=32
Fault Diagnosis

Symptom Problem Solution

Check for stuck caster wheel spindle.

Determine cause and repair or replace
as needed.

Check for debris on caster wheel

spindle or sleeve. Clean as needed.
(See Remove Lift Sensor.)

Excessive play in spindle sleeve due

to wear. Replace spindle.

Check wire harness or connector for

break. Replace as needed.

Check for loose, misaligned, or

missing magnet. Repair or replace as
needed.

Check for debris between magnet and

mower housing. Clean as needed.

(Fault) 28 Self test failure Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Search through mower user interface

Menu > Utilities > Fault Logs to
determine what failed the self test.
The self test check runs while the
mower is docked at the charge station.
Self test checks lift sensor, rear handle
sensor, tilt sensor, boundary sensors
present, and memory functions.
Use MowADVISOR to check sensor
operation.
If one of the sensors is not operational,
ensure that the sensor connector is
fully plugged in and is not corroded.
If the connection is good, replace the
sensor.
Tilt sensor and memory are part of
the vehicle control unit (VCU). If tilt
sensor or memory are not operational,
replace the VCU.

(Fault) 29 Mower over current Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Move the mower to a different surface

and clear debris from mower; clear
fault.

Continued on next page SW00544,000016B -19-12APR13-8/9

TM115019 (11DEC13) 20-05-11 021814

PN=33
Fault Diagnosis

Symptom Problem Solution

Ensure that mower blade is sharp.

Replace blade if needed. (See
Remove Blade Motor.)

Mow turf to maintenance height with

conventional mower.

Schedule mowing for when grass is

not wet.

Remove obstacle that mower may

have become stuck on.

(Fault) 30 12 volt under voltage Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Replace the VCU. (See Remove

VCU.)

(Fault) 31 12 volt over voltage Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Replace the VCU. (See Remove

VCU.)

(Fault) 32 Battery discharge FET Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Allow mower to cool, and run at a

cooler time. If the fault does not
return, change mow schedule.

Ensure that charge station is located

in a shaded area.

Replace battery. (See Remove

Battery.)

(Fault) 33 Left motor controller fault (MY13) Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

(Fault) 34 Right motor controller fault (MY13) Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

SW00544,000016B -19-12APR13-9/9

TM115019 (11DEC13) 20-05-12 021814

PN=34
Fault Diagnosis

Symptom Problem Solution

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

(Fault) 35 Blade motor controller fault (MY13) Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check wire harness connectors

and pins for good fit; check pins for
corrosion, seating.

(Fault) 36 Voltage on charge contacts inside yard Press ENTER and then START to
clear fault; if fault does not clear, go to
next step.

Check charging station wire harness

connectors and pins for good fit; check
pins for corrosion, seating.

Check mower charging wire harness

connectors and pins for good fit; check
pins for corrosion, seating.

SW00544,000016B -19-12APR13-10/9

TM115019 (11DEC13) 20-05-13 021814

PN=35
Fault Diagnosis

Warning Diagnosis codes give information regarding components. Contact

your local authorized John Deere service facility if the
The user interface UI screen displays a warning code displayed warning code persists.
when a component or operating system needs attention.
Codes are displayed in a letter and number combination, Warning Codes
with a warning code indicated by an “E” prefix. Warning
Symptom Problem Solution

E01 No Boundary Wire Signal Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Check charge station for boundary

wire fault indication; repair wire fault
if indicated.

Check boundary wire signal strength

with MowADVISOR.

Is the mower boundary sensor or

sensor connector damaged? Replace
if needed. (See Remove Boundary
Sensor for appropriate model.)

Is boundary wire (with extensions)

more than 350 m (1147 ft) long?
Reduce length.

Is resistance across boundary wire

connectors greater than 10 ohms?
Inspect connectors for tightness and
corrosion. Install new connectors to
cleaned boundary wire ends if needed.

Is mowing area configured so that

mower can be more than 35 m (115
ft.) from boundary wire? Reconfigure
mowing area.

Is metal in or under the mowing area

interfering with signal? Remove metal
or exclude from mowing area.

Is the boundary wire buried deeper

than 15 cm (6 in.) or under a slope.
Reduce depth.

E03 Failure of Boundary Sensor(s) Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Continued on next page SW00544,000016C -19-11DEC13-1/3

TM115019 (11DEC13) 20-05-14 021814

PN=36
Fault Diagnosis

Symptom Problem Solution

Is the boundary sensor connector or

sensor damaged? Replace if needed.
(See Remove Boundary Sensor for
appropriate model.)

E11 Left Traction Motor Over Speed Indicates a navigation warning (mower
will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E13 Right Traction Motor Over Speed Indicates a navigation warning (mower
will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E15 Blade Motor Over Speed Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E16 Blade Motor Under Speed Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E17 Mower Lifted Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E18 Mower Tilted Indicates a navigation warning (mower

will not move or mow).

Continued on next page SW00544,000016C -19-11DEC13-2/3

TM115019 (11DEC13) 20-05-15 021814

PN=37
Fault Diagnosis

Symptom Problem Solution

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E19 Rear Handle Touched Indicates a navigation warning (mower

will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

E21 Battery ChargeController Problem Indicates a navigation warning (mower

(FET) commands are set to 0, but user
intervention is not required).

Check for DTAC solution.

E22 Battery Temperature Too High or Too Indicates a navigation warning (mower
Low will not move or mow).

Press ENTER and then START to

clear fault; if fault does not clear, go to
next step.

Power cycle machine to reset codes.

The mower will go home and wait
until temperature is in the acceptable
range.

Supplemental Warning Codes cycle machine to reset codes. If the codes do not reset,
submit a DTAC case. (See Dealer Technical Assistance
Extra codes have been programmed into the machine for Center (DTAC).)
possible future use. If any of these codes occur, power
Code Description Use
E12 Left Motor underspeed Temporary, information only.
E14 Right Motor underspeed Temporary, information only.
E20 Mower over current Temporary, information only.
SW00544,000016C -19-11DEC13-3/3

TM115019 (11DEC13) 20-05-16 021814

PN=38
Group 10
Observed Diagnostics
Mowing Diagnostics
SW00544,000016E -19-01APR13-1/28

•
1 Mower Tracking - Ruts develop in the turf

SW00544,000016E -19-01APR13-2/28

•
1A Adjust Clean up Pass
Scheduling
Is clean up pass (CUP) scheduled too frequently? YES: Reduce percentage
of clean up passes to
scheduled mow cycles.

NO: Check if scheduled

mow cycles per week
are appropriate for turf
condition.

SW00544,000016E -19-01APR13-3/28

•
1B Adjust Mow Cycle
Scheduling
Is mow cycle scheduled too frequently for turf conditions? YES: Reduce number of
mowing hours or cycles per
week.

NO: Check direction of

travel for Homing, CUP, or
Launch Point travel.

SW00544,000016E -19-01APR13-4/28

•
1C Set Alternate Travel
Direction
Is direction of travel for Homing, CUP, or Launch Point in the same direction? YES: Set travel direction
for left (L) or right (R) for
shortest travel distance
to charging station as
appropriate.

SW00544,000016E -19-01APR13-5/28

•
1D Repair Mower Caster
Wheels
Do mower caster wheels roll or swivel freely? NO: Disassemble and
inspect caster wheel
assembly. Clean and
reassemble or replace
assembly as needed.

SW00544,000016E -19-01APR13-6/28

•
2 Mower Travel - Mower Travels in a Spiral Pattern

SW00544,000016E -19-01APR13-7/28

•
2A Check Sensor Readout Does one sensor show a constant or sporadic “u” at the user interface display? YES: Check boundary
sensor integrity and sensor
wiring harness connection.
NO: Check turf conditions
and adjust mower settings
if needed.

Continued on next page SW00544,000016E -19-01APR13-8/28

TM115019 (11DEC13) 20-10-1 021814

PN=39
Observed Diagnostics

•
2B Adjust Launch Point
Scheduling
Does mower travel in a spiral pattern when mowing in an area of taller or thicker grass? YES: Check blade
sharpness. Replace blade
if needed.

YES: Check for debris in

blade shield. Clean blade
shield if needed.
YES: Set launch point(s)
so that area with taller or
thicker grass is mowed
more often.
SW00544,000016E -19-01APR13-9/28

•
2C Adjust Mow Cycle
Scheduling
Does mower travel in a spiral pattern when mowing grass of uniform height? YES: Check blade
sharpness. Replace blade
if needed.

YES: Check for debris in

blade shield. Clean blade
shield if needed.
YES: Check blade
motor amp draw.
(Requires connection to
MowADVISOR.)
YES: Adjust mowing
schedule so that grass is
maintained at a shorter
height.
SW00544,000016E -19-01APR13-10/28

•
3 Mower Performance - Mower Does Not Cut Grass Evenly

SW00544,000016E -19-01APR13-11/28

•
3A Adjust Mowing
Schedule or Settings
Does the mower miss part of the mowing area? YES: Schedule more
frequent mowing cycles.

YES: Reduce percentage

of Clean Up Pass.
YES: Increase number of
launch points.
NO: Maintain present
mowing schedule, or reduce
mowing hours or cycles if
turf is not maintaining
growth.

SW00544,000016E -19-01APR13-12/28

•
4 Mower Noise

Continued on next page SW00544,000016E -19-01APR13-13/28

TM115019 (11DEC13) 20-10-2 021814

PN=40
Observed Diagnostics

•
4A Keep Mower Blade
Area Clean
Is mower noisy when operating? YES: Ensure that mower
blade housing is kept free
of debris.

SW00544,000016E -19-01APR13-14/28

•
5 Mower Blade

SW00544,000016E -19-01APR13-15/28

•
5A Mower Is Moving
But Mower Blade Is
Not Cutting
Is mower blade installed? NO: Install mower blade.

YES: Check tightness of

mower blade bolt.
IF OK: Check mower blade
connections at blade motor.
SW00544,000016E -19-01APR13-16/28

•
5B Mower Is Moving
But Mower Blade Is
Turning Intermittently
Is mower blade deformed? YES: Replace mower
blade.

NO: Check blade motor

wire harness connections
inside mower housing.

SW00544,000016E -19-01APR13-17/28

•
5C Mower Is Moving
But Mower Blade Is
Not Turning
Are all connections inside housing secure and free of corrosion? NO: Clean and tighten
connections.

IF OK: Check to see if

mower blade is deformed.
IF OK: Check boundary
signal polarity. If all sensors
do not show ‘Inside”,
recalibrate sensors.

SW00544,000016E -19-01APR13-18/28

•
6 Rear Handle Fault

Continued on next page SW00544,000016E -19-01APR13-19/28

TM115019 (11DEC13) 20-10-3 PN=41

021814
Observed Diagnostics

•
6A Mower Stops With
Intermittent Rear
Handle Fault
Do landscape or garden plants overhang mowing area? YES: Trim plants to ensure
that mower handle is not
contacted in passing.

IF OK: Check mower and

garden irrigation schedules.
SW00544,000016E -19-01APR13-20/28

•
6B Mower Stops With
Intermittent Rear
Handle Fault
Do mowing and irrigation schedules overlap? YES: Change mowing or
irrigation schedules to avoid
overlap.

SW00544,000016E -19-01APR13-21/28

•
7 Rear Wheel

SW00544,000016E -19-01APR13-22/28

•
7A Loose Rear Wheel Is nut securing rear wheel loose or missing? YES: Install new washer
and flange nut to wheel
motor shaft extension.
Tighten nut to specification.

SW00544,000016E -19-01APR13-23/28

•
8 Power Switch

SW00544,000016E -19-01APR13-24/28

•
8A Power Switch
Connections
Does turning power switch to OFF (O) position not turn mower off? YES: Check wire harness
connector at switch to
ensure that it is secure and
not corroded.
YES: Ensure that power
switch wiring harness is
fully installed to switch.
YES: Separate and
reconnect battery wiring
harness connectors.

SW00544,000016E -19-01APR13-25/28

•
9 User Interface (UI)

Continued on next page SW00544,000016E -19-01APR13-26/28

TM115019 (11DEC13) 20-10-4 PN=42

021814
Observed Diagnostics

•
9A UI Display Appearance Is the UI display readable? NO: If the display is
completely black or white,
change the screen contrast.
Push the up button 10 times.
If there is no change, push
the down button 10 times.
NO: UI wire harness
connector is not connected.
Join harness connectors.
NO: UI temperature is too
high (Display up and down
arrows do not appear.).
Place mower in a cool or
shaded spot to reduce
temperature.
NO: Possible damage from
impact, such as mishandling
or hail.
SW00544,000016E -19-01APR13-27/28

•
9B UI Display Changes Does the UI display message change from u, I, and O? YES: Check installation
instructions.

SW00544,000016E -19-01APR13-28/28

Navigation Diagnostics charging station for battery recharge are dependant upon
proper installation and mower programming.
Mower operating settings must be properly made so that
the mower will efficiently navigate through the mowing The following diagnostic conditions and actions will
area(s) and perform mowing operations on the desired assist in resolving issues stemming from navigation or
schedule. Proper settings to the mower are determined operating problems with the mower. In many cases, a
by the mowing area layout and mowing conditions. check of wiring harness connector(s) for full engagement,
Autonomous navigation for initiation of mowing cycle(s), corrosion, or physical damage such as bent pins will help
operation within the mowing area(s), and return to the to resolve operating problems.
SW00544,000016F -19-12APR13-1/43

•
1 Mower Does Not Leave Charging Station

SW00544,000016F -19-12APR13-2/43

•
1A Determine Power
Status
Is mower power switch on? YES: Is mower in Auto
Schedule mode?

NO: Turn power switch on.

Continued on next page SW00544,000016F -19-12APR13-3/43

TM115019 (11DEC13) 20-10-5 021814

PN=43
Observed Diagnostics

•
1B Determine System
Status
Is the charging station status indicator LED on and solid green? YES: Check mower battery
power level.

NO: Check power supply.

NO: Check boundary wire
integrity.
NO: Check wiring harness
connector(s) for full
engagement or corrosion.
SW00544,000016F -19-12APR13-4/43

•
1C Determine Power
Status
Is charging station power supply plugged in? YES: Is charging station
status indicator flashing
green?

NO: Plug in charging

station.
SW00544,000016F -19-12APR13-5/43

•
1D Determine Power
Status
Is charging station outlet powered? YES: Check mower battery
state of charge.

YES: Check wiring harness

connector(s) for full
engagement or corrosion.
NO: Reset earth ground
outlet.
NO: Reset circuit breaker.
SW00544,000016F -19-12APR13-6/43

•
1E Determine Battery
Status
Is mower battery charged? YES: Check mower
settings.

NO: Plug in charging

station, check power supply.
NO: Run battery tests in
MowADVISOR auto test to
determine battery condition.
Test will take approximately
2 hours to complete (Ensure
that the power system fan
is installed.).

Continued on next page SW00544,000016F -19-12APR13-7/43

TM115019 (11DEC13) 20-10-6 PN=44

021814
Observed Diagnostics

•
1F Check Mower
Charging Contact
Does the mower make contact with both charging station contacts? YES: Check mower internal
wiring and connectors.

NO: Bend charge

station contact plates per
DTAC/DealerNet solution.
NO: Check guide loop and
mower sensor integrity.
NO: Check alignment and
installation of guide loop.
SW00544,000016F -19-12APR13-8/43

•
1G Check Mower Program Is(Are) mowing schedule(s) set?
Status
YES: Check mowing
schedule mode.

NO: Set mowing

schedule(s).
SW00544,000016F -19-12APR13-9/43

•
1H Check Mower Program Is the correct mowing schedule set in MowNow?
Status
YES: Check mowing auto
schedule mode.

NO: Set correct mowing

schedule.
SW00544,000016F -19-12APR13-10/43

•
1I Check Mower Program Are displayed date and time correct?
Status
YES: Check for fault
display.

NO: Set correct date and

time.

SW00544,000016F -19-12APR13-11/43

•
1J Check Mower Fault
Status
Is there a fault shown at the User Interface? In the log? YES: Clear the fault.

SW00544,000016F -19-12APR13-12/43

•
2 Mower Pauses When Leaving Charging Station

Continued on next page SW00544,000016F -19-12APR13-13/43

TM115019 (11DEC13) 20-10-7 021814

PN=45
Observed Diagnostics

•
2A Check for Sensor
Synchronization
Does the mower pause after leaving the charging station”? YES: Mower is
synchronizing with
boundary wire signal.
Check the User Interface
for “uuuu” display and its
eventual disappearance.
(Display time will vary with
the installation.)
SW00544,000016F -19-12APR13-14/43

•
3 Mower Stopped in Mowing Area

SW00544,000016F -19-12APR13-15/43

•
3A Check Mower
Operating Status
Is the mower switch on? YES: Check mower
indicator light.

NO: Turn switch to ON (I)

position.
SW00544,000016F -19-12APR13-16/43

•
3B Check Mower
Operating Status
Is the Start button LED lit and solid green? NO: Check mowing mode
setting.

SW00544,000016F -19-12APR13-17/43

•
3C Check Mower
Operating Status
Is the mowing program set to “Auto Mode”? YES: Check the UI and
fault log for “E-01” fault.

NO: Set for “Auto Mode”

mowing.

SW00544,000016F -19-12APR13-18/43

•
3D Check Mower
Operating Status
Does the User Interface display “uuuu”? YES: Check the boundary
wire signal strength.

NO: Check mower

operating settings
NO: Check charge station
status.

SW00544,000016F -19-12APR13-19/43

•
3E Check Mower
Operating Status
Is mower operation set for “Mow Now no charge station area” and the battery is
discharged?
YES: Set operation for
standard “Mow Now”
setting.

YES: Return mower to

charge station for battery
recharge.

Continued on next page SW00544,000016F -19-12APR13-20/43

TM115019 (11DEC13) 20-10-8 021814

PN=46
Observed Diagnostics

•
3F Check Mower
Operating Status
If the mower switch is on, is there anything displayed at the User Interface screen? YES: Check the charging
station status indicator LED.

NO: Check internal battery

wiring harness connection.
NO: Check wiring harness
connector(s) for full
engagement or corrosion.
SW00544,000016F -19-12APR13-21/43

•
3G Check Charge Station
Operating Status
Is the charging station status LED lit and solid green? YES: Check mower battery.

YES: Check mower for

warning(s).
NO: Check boundary wire
integrity.
NO: Check power supply.
SW00544,000016F -19-12APR13-22/43

•
3H Check Charge Station
Operating Status
Is the charging station status LED lit and blinking? YES: Cycle power by
unplugging charging station
power supply from outlet,
pausing, and plugging
power supply in.
NO: Check for voltage at
power supply outlet.
NO: Plug charging station
power supply in to outlet.
SW00544,000016F -19-12APR13-23/43

•
3I Check Mower
Operating Area
Does the mowing area exceed the maximum limit of 1800 m^2 (2153 yd.2)? YES: Reduce mowing area
size (area encompassed by
boundary wire).

NO: Check boundary wire

integrity.

SW00544,000016F -19-12APR13-24/43

•
3J Check Mower
Operating Area
Can the mower exceed the maximum separation distance of 35 m (115 ft.) from the
boundary wire?
YES: Rearrange boundary
wire to reduce separation
distance between mower
and boundary wire.
NO: Check boundary wire
integrity.

SW00544,000016F -19-12APR13-25/43

•
3K Check Boundary Wire Does the boundary wire exceed the maximum length of 350 m (1147.5 ft.)? YES: Reduce boundary
wire length.

NO: Check boundary wire

integrity.

Continued on next page SW00544,000016F -19-12APR13-26/43

TM115019 (11DEC13) 20-10-9 PN=47

021814
Observed Diagnostics

•
3L Check Boundary Wire Does boundary wire exceed maximum buried depth of 15 cm (5.9 in.)? YES: Reduce depth of
boundary wire.

NO: Check boundary wire

integrity.
SW00544,000016F -19-12APR13-27/43

•
3M Check Mowing Area Are there metal objects, such as pipes, wires, or wire mesh buried under the mowing
area? Is there reinforcing bar in a concrete deck below a rooftop garden?
YES: Rearrange the
boundary wire or create
a Keep Out Area to avoid
area(s) with limited buried
metal.
YES: Avoid area(s) with
substantial buried metal.
SW00544,000016F -19-12APR13-28/43

•
4 Mower Stops and Starts in Mowing Area

SW00544,000016F -19-12APR13-29/43

•
4A Check Operating
Conditions
Is there a source of radio frequency disturbance, such as powered mole fencing, or
electronic devices in or around the mowing area?
YES: Move, shield, or
remove devices.

NO: Check boundary wire.

SW00544,000016F -19-12APR13-30/43

•
4B Check Operating
Conditions
Are there metal objects, such as pipes, wires, or wire mesh buried under the mowing
area? Is there reinforcing bar in a concrete deck below a rooftop garden?
YES: Rearrange the
boundary wire or create
a Keep Out Area to avoid
area(s) with limited buried
metal.
YES: Avoid area(s) with
substantial buried metal.
NO: Check boundary wire.

SW00544,000016F -19-12APR13-31/43

•
4C Check Mower Blade
Condition
Is mower blade magnetized? YES: Replace blade
with new service blade
SAA11061.

NO: Check boundary

sensors and sensor
connectors.

SW00544,000016F -19-12APR13-32/43

•
5 Direction Change

Continued on next page SW00544,000016F -19-12APR13-33/43

TM115019 (11DEC13) 20-10-10 021814

PN=48
Observed Diagnostics

•
5A Unexplained Mower
Direction of Travel
Does the mower pass by the guide loop when homing? YES: Guide loop wires are
not connected at charging
station.

YES: Check wiring harness

connector(s) for full
engagement or corrosion.
YES: Mower hits bump
as it approaches boundary
wire/guide loop intersection.
SW00544,000016F -19-12APR13-34/43

•
5B Unexplained Mower
Direction of Travel
Does mower fail to complete clean up pass, travel to launch point, or homing movement? YES: Mower hits bump
when following off the wire,
then acquires opposite side
boundary wire signal.
YES: Mower acquires
boundary wire signal from
opposite side of corridor if
corridor is too narrow.
YES: Mower changes
direction with loss of traction
at one drive wheel, then
acquires boundary wire
signal from opposite side of
corridor or mowing area.
SW00544,000016F -19-12APR13-35/43

•
5C Unexplained Mower
Direction of Travel
Does the mower launch off the boundary wire before reaching the charging station
when homing?
YES: Define keep out
area(s).

YES: Boundary wire

perimeter length is set too
short. Set the mower at
the charging station. Press
calibrate in the launch
points menu. The mower
will measure the boundary
wire distance. Enter this
distance plus 10% as the
yard perimeter under keep
out settings.
YES: Set keep out turns
to 2 if navigating a highly
landscaped mowing area.
Continued on next page SW00544,000016F -19-12APR13-36/43

TM115019 (11DEC13) 20-10-11 PN=49

021814
Observed Diagnostics

•
5D Unexplained Mower
Direction of Travel
Does mower fail to disengage from keep out area when homing? YES: Keep out area
perimeter length set too
short. Set the mower at
the charge station. Press
“calibrate” in the launch
points menu. The mower
will measure the length of
the boundary wire. Add
10% to the number and
enter into the yard perimeter
under keep out settings.
SW00544,000016F -19-12APR13-37/43

•
5E Unexplained Mower
Direction of Travel
Does the mower circle around a keep out area? YES: Define keep out
area(s).

YES: Set keep out area

navigation to 1 turn
SW00544,000016F -19-12APR13-38/43

•
5F Unexplained Mower
Direction of Travel
Does mower change direction of travel when not near boundary wire? YES: Mower hits bump in
mowing area.

YES: One or both wheels

lose traction in mowing
area. Avoid wet areas or
excessively steep slopes.
YES: Boundary sensor
losing synchronization.
YES: One boundary
sensor is inverted. Correct
sensor polarity through
MowADVISOR.
YES: Check boundary
sensor wiring harness
connections.
SW00544,000016F -19-12APR13-39/43

•
5G Unexplained Mower
Direction of Travel
Does mower not change direction of travel when encountering an obstacle? YES: Mower overrides
obstacle. Obstacle must be
solid and more than 10 cm
(4 in.) tall to deflect mower.
Create keep out area for
soft or low lying obstacles.
YES: Mower looses
traction when encountering
obstacle. Avoid wet areas
or excessively steep slopes.

Continued on next page SW00544,000016F -19-12APR13-40/43

TM115019 (11DEC13) 20-10-12 PN=50

021814
Observed Diagnostics

•
5H Unexplained Mower
Direction of Travel
Does mower travel outside boundary wire? YES: Mower loses traction.
Move boundary wire away
from excessively steep
slopes.
YES: Boundary wire
polarity is incorrect. Check
for correct UI display of
IIII with the mower inside
the boundary wire. Reset
polarity with MowADVISOR
if indication is not correct.
YES: Mower acquires
boundary wire signal from
adjacent mowing area
for another autonomous
mower. Check for correct
UI display of IIII with
the mower inside its
boundary wire. Label
and disconnect boundary
wire from charging station.
Place mower between
its boundary wire and
boundary wire for adjacent
mowing area. If UI display
shows IIII, increase
separation distance
between boundary wires.
SW00544,000016F -19-12APR13-41/43

•
6 Mower Docking

Continued on next page SW00544,000016F -19-12APR13-42/43

TM115019 (11DEC13) 20-10-13 PN=51

021814
Observed Diagnostics

•
6A Mower Alignment With Does mower not align with charging station when docking?
Charging Station
YES: Guide loop is
inverted. Change guide
loop connections at
charging station.
YES: Sensor polarity is
incorrect. Check and
correct mower sensor
polarity with MowADVISOR.
YES: Guide loop is
incorrectly installed. Guide
loop wires must be installed
in parallel with a maximum
separation distance of 13
cm (5 in.) and a maximum
buried depth of 15 cm (6
in.). Guide loop must be
centered under charging
station and extend straight
out from charging station
for a minimum distance of
1 m (3.3 ft.) from front of
charging station pad.
YES: Holes or dips under
charging station pad or
guide loop. Surface must
be flat and level under and
around charging station pad
and guide loop.
YES: Excess length of
boundary or guide loop wire
behind charging station.
Limit exposed wire length to
30 cm.
YES: Boundary wire
separation at charging
station. Install boundary
wire parallel and as close
together as possible
without twisting or touching
between mowing area
boundary and charging
station connections.
SW00544,000016F -19-12APR13-43/43

TM115019 (11DEC13) 20-10-14 PN=52

021814
Section 30
Mower
Contents

Page

Group 05—Component Location

Mower Components ...................................... 30-05-1

Group 10—Theory of Operation

Mowing Operation ......................................... 30-10-1

Group 20—Tests and Adjustments

Safety Precautions ........................................ 30-20-1
Cutting Height Adjustments ........................... 30-20-2

Group 25—Repair
Summary of References................................ 30-25-1
Specifications ................................................ 30-25-1
Safety Precautions ........................................ 30-25-1
Remove Blade ............................................... 30-25-2
Install Blade ................................................... 30-25-3
Remove Blade Motor..................................... 30-25-5
Install Blade Motor......................................... 30-25-6
Remove Cutting Height Adjuster ................... 30-25-8
Install Cutting Height Adjuster ..................... 30-25-10
Remove Blade Shield .................................. 30-25-12
Install Blade Shield ...................................... 30-25-13

TM115019 (11DEC13) 30-1 021814

PN=1
Contents

TM115019 (11DEC13) 30-2 021814

PN=2
Group 05
Component Location
Mower Components

MXT002008 —UN—09JAN12
A—Blade Motor E—Screw (4 used) J— Bolt (8 used) N—Washer
B—Plate, Index F— Seal K—Blade Mount, Upper O—Washer
C—Height Adjuster Kit G—Adjuster Support L— Blade P—Socket Bolt
D—Bolt (8 used) H—O-ring Seal M—Blade Mount, Lower Q—Star Washer
I— Blade Shield

SW00544,0000170 -19-05FEB13-1/1

TM115019 (11DEC13) 30-05-1 021814

PN=55
Component Location

TM115019 (11DEC13) 30-05-2 021814

PN=56
Group 10
Theory of Operation
Mowing Operation a minimum height of 19 mm (0.75 in.) to a maximum of
102 mm (4 in.).
The cutting blade has four arms, and rotates within a
circular blade shield. Mowing speed with for model year 2012 (SN 1SA1112 and
1SA1118) is 26 cm/sec, With required model year 2013
The mower controller monitors blade motor current draw components installed, mowing speed can be increased
when the mower is in operation. If blade motor current to 45 cm/sec. Travel speed for model year 2013 (SN
draw increases beyond a threshold value, wheel motor 1SA1312 and 1318) mowers is 45 cm/sec when mowing
speed is reduced and, if spiral mode is selected, the and 30 cm/sec when not mowing.
mower will travel in a circular pattern until the blade motor
load stays below a threshold value.
Cutting height is adjustable without the use of tools.
Adjustment is possible in 13 mm (0.5 in.) increments from
SW00544,0000171 -19-11APR13-1/1

TM115019 (11DEC13) 30-10-1 021814

PN=57
Theory of Operation

TM115019 (11DEC13) 30-10-2 021814

PN=58
Group 20
Tests and Adjustments
Safety Precautions
In certain situations, the autonomous mower may be in a
powered state. Ensure that the mower is in a safe mode
before handling or moving.
Before moving, servicing, or maintaining the mower, push
the stop button (A) at the top of the mower, and then turn

MXT002009 —UN—12JAN12
the main power switch (B) to the OFF (O) position.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12
SW00544,0000173 -19-12APR13-1/3

Only carry mower by rear handle (C) with the blade facing
away. If there is reason to suspect that there may be
moisture inside the mower housing, carry the mower
horizontally until inspection can be carried out. (See
Moisture Inside Mower Housing).

C—Rear Handle

MXT002011 —UN—06JAN12

Continued on next page SW00544,0000173 -19-12APR13-2/3

TM115019 (11DEC13) 30-20-1 021814

PN=59
Tests and Adjustments

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002012 —UN—06JAN12
immediate failure or reduced service life.
If the mower is connected through a computer
to MowAdvisor, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
D—Battery Connector
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components Any time the mower cover is opened, immediately
• Use of protective equipment, such as disconnect battery connector (D) from VCU wire harness.
grounding devices and non-synthetic clothing
SW00544,0000173 -19-12APR13-3/3

Cutting Height Adjustments

1. Push stop button (A).
2. Turn main switch (B) to off (O) position.
3. Place a soft cloth on work surface to protect machine.

MXT002009 —UN—12JAN12
4. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower
Housing).
5. Place machine on its side with the power switch on
upper side of handle.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12

Continued on next page SW00544,0000174 -19-15MAR13-1/2

TM115019 (11DEC13) 30-20-2 021814

PN=60
Tests and Adjustments

CAUTION: Blades are sharp and can cut.

Use caution and wear gloves when handling
blades or working near blades.

6. Grasp blade shield (C) and rotate to adjust cutting

height to desired position.

MXT002013 —UN—06JAN12
a. Rotate blade shield clockwise to raise blade height.
b. Rotate blade shield counter clockwise to lower
blade height.
7. A Height of Cut label (D) is provided as a guide to the
approximate cut height. Adjust blade shield to bring
bottom edge even with cutting height mark for desired
cutting
HOC Letter Height of Cut
A 102 mm (4.0 in.) C—Blade Shield D—Height of Cut Label

B 88 mm (3.5 in.)
C 74 mm (2.9 in.)
NOTE: Check blade clearance to ensure that blade does
D 60 mm (2.4 in.)
not contact blade shield. If blade tip(s) contact
E 46 mm (1.8 in.) blade shield, check blade centering.
8. Adjust cutting height to a detent position to hold
selected cutting height. The edge of the blade shield
should align with line at cutting height label letters
when adjusted to a detent position. (See Install Blade.)
SW00544,0000174 -19-15MAR13-2/2

TM115019 (11DEC13) 30-20-3 021814

PN=61
Tests and Adjustments

TM115019 (11DEC13) 30-20-4 021814

PN=62
Group 25
Repair
Summary of References • Install Blade Motor
• Specifications • Remove Cutting Height Adjuster
• Safety Precautions • Install Cutting Height Adjuster
• Remove Blade Shield
• Remove Blade • Install Blade Shield
• Install Blade
• Remove Blade Motor
SW00544,0000175 -19-05FEB13-1/1

Specifications
Item Measurement Specification

Blade Bolt Torque 7±0.5 N·m

(62±4 lb.-in.)
Blade Motor Bolts Torque 4.2±0.5 N·m
(37±4 lb.-in.)
Cutting Height Assembly Screws Torque 4.8±0.5 N·m
(42±4 lb.-in.)
Blade Shield Bolts Torque 5±0.5 N·m
(44±4 lb.-in.)
SW00544,0000176 -19-05FEB13-1/1

Safety Precautions
In certain situations, the autonomous mower may be in a
powered state. Ensure that the mower is in a safe mode
before handling or moving.
Before moving, servicing, or maintaining the mower, push
the stop button (A) at the top of the mower, and then turn

MXT002009 —UN—12JAN12
the main power switch (B) to the OFF (O) position.
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact MXT002010 —UN—06JAN12
the charge station plates.
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing
A—Stop Button B—Main Power Switch

Continued on next page SW00544,0000177 -19-12APR13-1/2

TM115019 (11DEC13) 30-25-1 021814

PN=63
Repair

If the mower cover is opened, immediately separate

battery wire harness connector (C).

C—Battery Connector

MXT002014 —UN—06JAN12
SW00544,0000177 -19-12APR13-2/2

Remove Blade
1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture

MXT002009 —UN—12JAN12
before proceeding. (See Moisture Inside Mower
Housing).
4. Place a soft cloth on work surface to protect machine.
5. Invert machine and place on protected work surface.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12

Continued on next page SW00544,0000178 -19-10APR13-1/2

TM115019 (11DEC13) 30-25-2 021814

PN=64
Repair

CAUTION: Blades are sharp and can cut.

Use caution and wear gloves when handling
blades or working near blades.

6. Secure blade. Remove bolt (C), star lock washer,

fender washer, and drive washer (D).

MXT002015 —UN—06JAN12
7. Remove blade.

C—Bolt, Hex Socket D—Washer

SW00544,0000178 -19-10APR13-2/2

Install Blade
1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
3. Place a soft cloth on work surface to protect machine.

MXT002009 —UN—12JAN12
4. Invert machine and place on protected work surface.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12
Continued on next page SW00544,0000179 -19-10APR13-1/5

TM115019 (11DEC13) 30-25-3 021814

PN=65
Repair

5. Align flats on drive flange (C) and blade motor shaft.

Install drive flange.

C—Drive Flange

MXT002016 —UN—06JAN12
SW00544,0000179 -19-10APR13-2/5

CAUTION: Blades are sharp and can cut.

Use caution and wear gloves when handling
blades or working near blades.

NOTE: Blade must be centered on drive flange

and within blade shield.

MXT002017 —UN—06JAN12
6. Install blade (D) to drive flange, with blade tips bent
away from blade shield. Center blade on drive flange.

D—Blade

SW00544,0000179 -19-10APR13-3/5

7. Align keys on drive washer (E) to keyways (F) in drive

flange. Install washer, ensuring that step (G) in washer
fits into blade center opening.

E—Drive Washer G—Step

F— Keyways

MXT002018 —UN—06JAN12

Continued on next page SW00544,0000179 -19-10APR13-4/5

TM115019 (11DEC13) 30-25-4 021814

PN=66
Repair

NOTE: Ensure that blade is centered before tightening

blade bolt. Check blade clearance to ensure that
blade does not contact blade shield.

8. Install washer (H) and washer (I) to bolt (J). Install

bolt through drive washer and flange to motor shaft.
Secure blade and tighten bolt to specification.

MXT002019 —UN—06JAN12
Specification
Blade Bolt—Torque..................................................................7±0.5 N·m
(62±4 lb.-in.)

H—Star Lock Washer J— M6x25 Hex Socket Blade

I— Flat Washer Bolt

SW00544,0000179 -19-10APR13-5/5

Remove Blade Motor

1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture

MXT002009 —UN—12JAN12
before proceeding. (See Moisture Inside Mower
Housing).
4. Place a soft cloth on work surface to protect machine.
5. Position machine on a protected surface.
6. Remove blade and blade shield. (See Remove Blade
and Remove Blade Shield.)
7. Position machine on its wheels.
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and Service Area Setup).

MXT002010 —UN—06JAN12
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates. A—Stop Button B—Main Power Switch

Safe handling of electronic compo-

nents requires: 8. Remove mower cover. (See Remove Cover.)
• Safe dissipation of built-up static charge 9. Immediately separate battery wire harness connector.
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing
Continued on next page SW00544,000017A -19-12APR13-1/3

TM115019 (11DEC13) 30-25-5 021814

PN=67
Repair

10. Disconnect intermediate wire harness connector (C).

11. Position mower on its side.

C—Connector

MXT002020 —UN—06JAN12
SW00544,000017A -19-12APR13-2/3

12. Hold motor, and remove bolts (D) securing motor to

bottom of cutting height adjuster. Remove motor.

D—Hex Bolt (4 used)

MXT002021 —UN—06JAN12
SW00544,000017A -19-12APR13-3/3

Install Blade Motor

1. Place a soft cloth on work surface to protect machine.
2. Position machine on its side on protected surface.
3. Align blade motor with mounting plate index pin (A).
Fit step in motor to center hole in mounting plate.
MXT002022 —UN—06JAN12
A—Index Pin

Continued on next page SW00544,000017B -19-10APR13-1/3

TM115019 (11DEC13) 30-25-6 021814

PN=68
Repair

4. Hold motor, and install bolts (B) through cutting height

adjuster to motor. Tighten bolts to specification.
Specification
Blade Motor
Bolts—Torque........................................................................4.2±0.5 N·m
(37±4 lb.-in.)

MXT002023 —UN—06JAN12
5. Position mower on its wheels.

B—Hex Bolt (4 used)

SW00544,000017B -19-10APR13-2/3

6. Join blade motor intermediate wiring harness

connectors (C).
7. Ensure that harness retainer (D) is securely installed
to height adjuster.
8. Install blade shield. (See Install Blade Shield.)

MXT002024 —UN—06JAN12
9. Install cutting blade. (See Install Blade.)
10. Install cover. (See Install Cover.)

C—Connector D—Retainer

SW00544,000017B -19-10APR13-3/3

TM115019 (11DEC13) 30-25-7 021814

PN=69
Repair

Remove Cutting Height Adjuster

Remove the cutting height assembly to replace damaged
components, or to replace seals protecting the interior
electronic components.
1. Push stop button (A).

MXT002009 —UN—12JAN12
2. Turn main switch (B) to OFF (O) position.
3. Place a soft cloth on work surface to protect machine.
4. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower
Housing).
5. Invert machine and place on protected work surface.

CAUTION: Blades are sharp and can cut.

Use caution and wear gloves when handling
blades or working near blades.

6. Remove blade. (See Remove Blade.)

MXT002010 —UN—06JAN12
A—Stop Button B—Main Power Switch

SW00544,000017C -19-10APR13-1/6

7. Remove bolts (C) securing blade shield to cutting

height assembly. Remove blade shield.
8. Remove blade motor. (See Remove Blade Motor.)
9. Place machine on its wheels.

MXT002025 —UN—06JAN12
C—Hex Bolts (4 used)

Continued on next page SW00544,000017C -19-10APR13-2/6

TM115019 (11DEC13) 30-25-8 021814

PN=70
Repair

10. Remove screws (D) securing cutting height assembly.

Remove cutting height assembly.

D—TORX® Socket Screw (4

used)

MXT002026 —UN—06JAN12
TORX is a trademark of Camcar/Textron
SW00544,000017C -19-10APR13-3/6

11. Inspect condition of gasket (E). Replace if gasket is

damaged or is not flexible.
12. Clean outer surface and inspect condition of moving
cutting height component (F). Smooth minor scratches
on outer surface.

MXT002027 —UN—06JAN12
13. Replace component if scratches or surface roughness
prevent good seal contact with surface.

E—Gasket F— Moving Component

SW00544,000017C -19-10APR13-4/6

14. Remove seal ring (G).

G—Seal Ring

MXT002028 —UN—06JAN12

Continued on next page SW00544,000017C -19-10APR13-5/6

TM115019 (11DEC13) 30-25-9 021814

PN=71
Repair

15. Remove O-ring (H).

H—O-ring

MXT002029 —UN—06JAN12
SW00544,000017C -19-10APR13-6/6

Install Cutting Height Adjuster

IMPORTANT: Ensure that seals are in good condition
and installed properly to prevent entry of
moisture or dirt into the double wall frame.
Entry of dirt or moisture may result in damage
to electronic components.

MXT002030 —UN—06JAN12
1. Install new O-ring (A) to double wall frame groove.

A—O-ring

SW00544,000017D -19-10APR13-1/6

2. Align attachment holes and install seal support (B) to

double wall frame.

B—Seal Support

MXT002031 —UN—06JAN12

Continued on next page SW00544,000017D -19-10APR13-2/6

TM115019 (11DEC13) 30-25-10 021814

PN=72
Repair

3. If inner cutting height adjuster is removed, install

adjuster so that blade motor indexing pin (C) is located
near height adjuster detents (D) when adjuster is
rotated to fully extended position.

C—Pin D—Detents

MXT002032 —UN—06JAN12
SW00544,000017D -19-10APR13-3/6

4. Ensure that outer surface of moveable cutting height

component (E) is clean and smooth.
5. Install new gasket (F) over cutting height adjuster.
Install gasket up to base (G) of stationary adjuster
component.

MXT002033 —UN—06JAN12
E—Cutting Height Component G—Base
F— Gasket

SW00544,000017D -19-10APR13-4/6

6. Align attachment holes and install cutting height

adjuster assembly with adjustment detents (D) forward.
7. Secure assembly with screws (H). Tighten screws to
specification.
Specification
Cutting Height Assembly

MXT002034 —UN—06JAN12
Screws—Torque....................................................................4.8±0.5 N·m
(42±4 lb.-in.)

8. Install blade motor. (See Install Blade Motor.)

D—Detents H—TORX® Socket Head Screw

(4 used)

TORX is a trademark of Camcar/Textron

Continued on next page SW00544,000017D -19-10APR13-5/6

TM115019 (11DEC13) 30-25-11 021814

PN=73
Repair

9. Align holes in blade shield and cutting height assembly.

Install bolts (I) and tighten to specification.
Specification
Blade Shield
Bolts—Torque...........................................................................5±0.5 N·m
(44±4 lb.-in.)

MXT002035 —UN—06JAN12
10. Install cutting blade. (See Install Blade.)

I— M6x20 Hex Flange Bolt (4

used)

SW00544,000017D -19-10APR13-6/6

Remove Blade Shield

1. Push stop button (A).
2. Turn main switch (B) to off (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture

MXT002009 —UN—12JAN12
before proceeding. (See Moisture Inside Mower
Housing).
4. Place a soft cloth on work surface to protect machine.
5. Invert machine and place on protected work surface.

CAUTION: Blades are sharp and can cut.

Use caution and wear gloves when handling
blades or working near blades.

6. Remove blade. (See Remove Blade.)

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12

Continued on next page SW00544,000017E -19-12APR13-1/2

TM115019 (11DEC13) 30-25-12 021814

PN=74
Repair

7. Remove bolts (C) securing blade shield to bottom of

cutting height assembly.

C—Hex Bolt (4 used)

MXT006682 —UN—12APR13
SW00544,000017E -19-12APR13-2/2

Install Blade Shield

1. Align holes in blade shield and cutting height assembly.
Install bolts (A) and tighten to specification.
Specification
Blade Shield
Bolts—Torque...........................................................................5±0.5 N·m
(44±4 lb.-in.)

MXT006683 —UN—12APR13
CAUTION: Blades are sharp and can cut.
Use caution and wear gloves when handling
blades or working near blades.

2. Install blade. (See Install Blade.)

A—M6x20 Hex Flange Bolt (4

used)

SW00544,000017F -19-12APR13-1/1

TM115019 (11DEC13) 30-25-13 021814

PN=75
Repair

TM115019 (11DEC13) 30-25-14 021814

PN=76
Section 40
Drive System
Contents

Page

Group 05—Component Location

Drive Components, Model Year
2012 (SN 1SA1112 and
1SA1118) ................................................... 40-05-1
Drive Components, Model Year
2013 (SN 1SA1312 and
1SA1318)................................................... 40-05-2

Group 10—Theory of Operation

Drive Wheels ................................................. 40-10-1
Front Wheels ................................................. 40-10-1
Wheel Motors ................................................ 40-10-1

Group 15—Tests and Adjustments

Drive Wheel Free Play................................... 40-15-1

Group 20—Repair
Summary of Reference.................................. 40-20-1
Specifications ................................................ 40-20-1
Safety Precautions ........................................ 40-20-2
Remove Wheel Motor.................................... 40-20-3
Install Wheel Motor........................................ 40-20-5
Remove Front Wheel..................................... 40-20-7
Install Front Wheel......................................... 40-20-9

TM115019 (11DEC13) 40-1 021814

PN=1
Contents

TM115019 (11DEC13) 40-2 021814

PN=2
Group 05
Component Location
Drive Components, Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT002037 —UN—09JAN12
A—Snap Ring (2 used) G—TORX Screw M6x20 (8 used) M—Front Wheel Caster Assembly Q—O-ring (2 used)
B—Snap Ring (2 used) H—Flat Washer (8 used) (2 used)
2
C—Lift Sensor Magnet Assembly I— Hex Screw M4x16 (8 used) N—Washer (2 used)
(2 used) J— Drive Wheel Assembly (2 O—Spacer (2 used)
D—Double Wall Frame used) P—Front Wheel Spindle Bushing
E—Drive Wheel Motor Assembly K—Flat Washer (2 used) Assembly (2 used)
(2 used) L— Hex Flange Nut 8mm (2 used)
F— Drive Motor Mounting Flange
1
(2 used)
1
Parts F, H, and I used with drive motor E. Top level assembly is E.
2
Parts N, O, P, and Q used with Service Assembly group.
Top level assembly is P.
SW00544,0000180 -19-12APR13-1/1

TM115019 (11DEC13) 40-05-1 021814

PN=79
Component Location

Drive Components, Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006533 —UN—03APR13

A—Mower Housing G—Spacer (6 used; 3 on each O—Flat Washer (2 used) T— Bushing Assembly, Spindle
1 2
B—Motor, Wheel (2 used) side) P—Frame, Caster Wheel (2 used) (2 used)
C—Mounting Flange and Gasket, H—Drive Wheel Assembly (2 Q—Cushion (2 used) U—O-ring (2 used)
Wheel Motor used) R—Snap Ring (2 used) V—Snap Ring (2 used)
3
D—TORX® Screw, M6x20 (8 used) I— Drive Wheel Assembly Option S—Seal, Spindle (2 used) W—Actuator, Lift Sensor (2 used)
E—Flat Washer (8 used) (Increased Traction) X—Cushion (2 used)
F— Screw, Hex M4x16 (8 used) J— Flat Washer (2 used) Y—Snap Ring (2 used)
K—Lock Nut, M8 (2 used)
L— Lock Nut (2 used)
M—Caster Wheel (2 used)
N—Axle, Caster Wheel (2 used)

TORX is a trademark of Camcar/Textron

1
C, E, and F used with B)

Continued on next page SW00544,00001E9 -19-19AUG13-1/2

TM115019 (11DEC13) 40-05-2 021814

PN=80
Component Location

2
P includes L, M, N, O (N, L, O are not service parts without
M). M can be ordered separately.
3
T and U used with S.
SW00544,00001E9 -19-19AUG13-2/2

TM115019 (11DEC13) 40-05-3 021814

PN=81
Component Location

TM115019 (11DEC13) 40-05-4 021814

PN=82
Group 10
Theory of Operation
Drive Wheels tractive ability. An increased traction wheel assembly is
available for installations where extra traction may be
The machine is driven by the rear wheels. The rear drive required. Wheel assemblies are replaceable if a wheel is
wheels have a bi directional tread pattern, allowing the damaged or if the wheel tread becomes worn.
wheels to be installed on either side without affecting
SW00544,0000181 -19-05APR13-1/1

Front Wheels
The machine’s front caster wheels pivot freely on vertical
spindles, allowing the machine to be steered by varying
the speed or rotational direction of the rear drive wheels.
SW00544,0000182 -19-05FEB13-1/1

Wheel Motors Wheel motor maximum speed is dependant on model

Left and right rear wheels are individually driven by year and equipment installed to the mower.
bidirectional wheel motors. Wheel motor speed is reduced
through inline planetary gearsets installed to the output
• Maximum mowing speed for model year 2012 (SN
1SA1112 and 1SA1118) is 26 cm/sec.
ends of the motors. Drive adapters are pressed into the
rear wheels. Parallel flats on the drive adapters match
• Maximum mowing speed for model year 2013 (SN
1SA1312 and 1SA1318) is 45 cm/sec.
flats on the wheel motor shafts. Flanged nuts secure the
drive wheels to the wheel motor shafts.
• Maximum mowing speed for model year 2012 (SN
1SA1112 and 1SA1118) with model year 2913 bumper
The onboard vehicle control unit (VCU) controls machine and front caster kits installed is 45 cm/sec.
direction either by reducing the rotating speed or reversing The bumper has an individualized serial number that must
the direction of the left or right wheel motors. Machine be saved to the mower after bumper installation to allow
travel speed and direction are controlled by the VCU in the higher travel speeds.
response to various operating parameters.
SW00544,0000183 -19-11APR13-1/1

TM115019 (11DEC13) 40-10-1 021814

PN=83
Theory of Operation

TM115019 (11DEC13) 40-10-2 021814

PN=84
Group 15
Tests and Adjustments
Drive Wheel Free Play
1. Test for rotational free play between left and right rear
drive wheel (A) and wheel motor shaft.
2. If rotational free play exists, check to see that axle nut
torque is as specified.

MXT008050 —UN—16AUG13
Specification
Drive Wheel Axle Nut
—Torque........................................................................................14 N·m
(124 lb.-in.)

3. If axle nut torque is as specified and drive wheel still

has rotational free play, remove rear wheel and check
to see how many washers are installed between the
axle shaft step and the inside of the drive wheel.
4. If 1 or 2 washers are installed, install additional A—Drive Wheel
washers (PN SAU13411) for a total of 3 washers at
the inside of each wheel.
5. Reinstall wheel with retaining washer and nut. Torque
nut to specification.
6. Check for rotational free play in drive wheel. If more
than 6 mm of play exists at the tread surface, install a
new wheel (PN SAA10924).
SW00544,0000018 -19-19AUG13-1/1

TM115019 (11DEC13) 40-15-1 021814

PN=85
Tests and Adjustments

TM115019 (11DEC13) 40-15-2 021814

PN=86
Group 20
Repair
Summary of Reference • Install Wheel Motor
• Specifications • Remove Front Wheel
• Safety Precautions • Install Front Wheel
• Remove Wheel Motor
SW00544,0000186 -19-05FEB13-1/1

Specifications
Item Measurement Specification

Flange to Motor Screw Torque 2.3±0.5 N·m

(20±4 lb.-in.)
Wheel Motor Flange to Frame Torque 4.8±0.5 N·m
Screws (42±4 lb.-in.)
Drive Wheel Nut - Model Year 2012 Torque 6.8±0.5 N·m
(SN 1SA1112 and 1SA1118) (60±4 lb.-in.)
Drive Wheel Nut - Model Year 2013 Torque 10.5±0.8 N·m
(SN 1SA1312 and 1SA1318) (93±6 lb.-in.)
Mowing Travel Speed - Model Year Speed 26 cm/sec
2012 (SN 1SA1112 and 1SA1118) (10.2 in./sec.)
Mowing Travel Speed - Model Year Speed 45 cm/sec
2013 (SN 1SA1312 and 1SA1318) (17.7 in./sec/)
Non Mowing Travel Speed - Speed 30 cm/sec
Model Year 2013 (SN 1SA1312 (11.8 in./sec.)
and 1SA1318)
Mowing Travel Speed - Model Speed 45 cm/sec
Year 2012 (SN 1SA1112 and (17.7 in./sec.)
1SA1118) with Model Year 2013
Bumper and Caster Kits
SW00544,0000187 -19-10APR13-1/1

TM115019 (11DEC13) 40-20-1 021814

PN=87
Repair

Safety Precautions
In certain situations, the autonomous mower may be in a
powered state. Ensure that the mower is in a safe mode
before handling or moving.
Before moving, servicing, or maintaining the mower, push
the stop button (A) at the top of the mower, and then turn

MXT002009 —UN—12JAN12
the main power switch (B) to the OFF (O) position.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12
SW00544,0000188 -19-15AUG13-1/3

Only carry mower by rear handle (C) with the blade facing
away. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower Housing).

C—Rear Handle

MXT002011 —UN—06JAN12

Continued on next page SW00544,0000188 -19-15AUG13-2/3

TM115019 (11DEC13) 40-20-2 021814

PN=88
Repair

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result

MXT002012 —UN—06JAN12
in immediate failure or reduced service
life. Use ESD kit JDG11451 is a dedicated
ESD safe service area.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates. D—Battery Connector

Safe handling of electronic compo-

nents requires:
If mower cover is opened, immediately separate battery
• Safe dissipation of built-up static charge wire harness connector (D).
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing
SW00544,0000188 -19-15AUG13-3/3

Remove Wheel Motor

1. Push stop button (A).
2. Turn main switch (B) to off (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture

MXT002009 —UN—12JAN12
before proceeding. (See Moisture Inside Mower
Housing).
4. Remove cover and immediately disconnect battery
wire harness connector. (See Remove Cover.)

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12

Continued on next page SW00544,0000189 -19-12APR13-1/5

TM115019 (11DEC13) 40-20-3 021814

PN=89
Repair

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002038 —UN—06JAN12
immediate failure or reduced service life.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components C—Wheel Motor Wire Harness
• Use of protective equipment, such as Connector
grounding devices and non-synthetic clothing

5. Release locking tab and remove connector (C) from

VCU socket.
SW00544,0000189 -19-12APR13-2/5

6. Remove nut (D) and washer securing wheel to motor

shaft.
7. Remove wheel from motor shaft. Retain washer
installed between wheel hub and motor shaft.

D—Hex Nut

MXT002039 —UN—06JAN12
SW00544,0000189 -19-12APR13-3/5

8. Remove screws (E) securing wheel motor flange to

double wall frame.

E—TORX® Screw (4 used)

MXT002040 —UN—06JAN12

TORX is a trademark of Camcar/Textron

Continued on next page SW00544,0000189 -19-12APR13-4/5

TM115019 (11DEC13) 40-20-4 021814

PN=90
Repair

9. Withdraw wheel motor assembly from double wall

frame with wire harness (F) at top.
10. Remove screws (G) and flat washers securing
mounting flange to wheel motor. Remove flange.

F— Harness G—Hex Screw (4 used)

MXT002041 —UN—06JAN12
SW00544,0000189 -19-12APR13-5/5

Install Wheel Motor

IMPORTANT: Avoid Damage! Install a new wheel
motor mounting flange and gasket whenever a
wheel motor is removed. Reuse of components
may allow moisture to enter the mower housing.

MXT002042 —UN—06JAN12
1. Install new wheel motor mounting flange and gasket
(A). Ensure that gasket is in good condition.

A—Gasket

SW00544,000018A -19-15AUG13-1/6

2. Install wheel motor to new mounting flange with wiring

harness (B) aligned with flange notch (C).
3. Secure flange to motor with flat washers and screws
(D). Tighten screws to specification.
Specification
Mounting Flange to Motor
Screw—Torque......................................................................2.3±0.5 N·m

MXT002043 —UN—06JAN12
(20±4 lb.-in.)

B—Harness D—M4x17 Hex Screw (4 used)

C—Flange Notch

Continued on next page SW00544,000018A -19-15AUG13-2/6

TM115019 (11DEC13) 40-20-5 021814

PN=91
Repair

4. Install wheel motor assembly to double wall frame (E).

a. Insert wheel motor wire harness through frame
opening with wire harness at top of motor.

E—Frame

MXT002044 —UN—06JAN12
SW00544,000018A -19-15AUG13-3/6

b. Insert motor assembly, aligning double wall frame

key (F) with flange notch.
c. Install screws (G) securing wheel motor assembly to
double wall frame. Tighten screws to specification.
Specification
Wheel Motor Flange to

MXT002045 —UN—06JAN12
Frame Screws—Torque.........................................................4.8±0.5 N·m
(42±4 lb.-in.)

F— Frame Key G—M6x20 TORX® Screw (4

used)

TORX is a trademark of Camcar/Textron

SW00544,000018A -19-15AUG13-4/6

5. Install three washers (H) to recess at inside of wheel

hub, aligning flats on washers and hub.
6. Align wheel hub and motor shaft flats, and install
wheel with washer to motor shaft.
7. Install washer and nut (I) securing wheel to motor shaft.
MXT002046 —UN—15MAR13

8. Tighten nut to specification.

Specification
Wheel Nut—Torque................................................................14±0.5 N·m
(124±4 lb.-in.)

H—Washer (6 used) I— Hex Nut

Continued on next page SW00544,000018A -19-15AUG13-5/6

TM115019 (11DEC13) 40-20-6 021814

PN=92
Repair

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002047 —UN—15MAR13
immediate failure or reduced service life.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components J— Connector
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

9. Align and install wheel motor wire harness connector 10. Install cover. (See Install Cover.)
(J) to circuit board socket.
SW00544,000018A -19-15AUG13-6/6

Remove Front Wheel

1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
3. Place a soft cloth on work surface to protect machine.

MXT002009 —UN—12JAN12
4. Position machine on protected surface.
IMPORTANT: Avoid damage! Do not invert machine
to remove cover bolts. Damage to electronic
components may result if moisture is present
inside mower housing. Remove cover bolts and
cover with machine in an upright position.

5. If it is suspected that there may be moisture inside

mower housing, do not tilt mower to remove cover.
Remove cover with mower in an upright position. See
Moisture Inside Mower Housing).
6. Remove mower cover. (See Remove Cover.)
7. Immediately separate battery wire harness connector

MXT002010 —UN—06JAN12
after removing mower cover.

A—Stop Button B—Main Power Switch

Continued on next page SW00544,000018B -19-12APR13-1/4

TM115019 (11DEC13) 40-20-7 021814

PN=93
Repair

8. Remove snap ring (C) securing lift sensor actuator (D).

9. Remove spindle cushion (model year 2013 mowers
SN 1SA1312 and 1SA1318).
10. Remove actuator.

C—Snap Ring D—Actuator

MXT006546 —UN—29MAR13
SW00544,000018B -19-12APR13-2/4

11. Remove caster assembly from spindle bushing.

12. Remove retainer (E) and damper (F) for model year
2013 models (SN 1SA1312 and 1SA1318).

E—Retainer F— Damper

MXT006543 —UN—29MAR13
SW00544,000018B -19-12APR13-3/4

13. Remove snap ring (G) securing spindle bushing.

Remove bushing.

G—Snap Ring

MXT006548 —UN—29MAR13

SW00544,000018B -19-12APR13-4/4

TM115019 (11DEC13) 40-20-8 021814

PN=94
Repair

Install Front Wheel

1. Carefully inspect spindle components for wear or
damage. Replace spindle bushing and seals if any
wear is evident.

MXT006550 —UN—29MAR13
2. Install new damper (A) to spindle for model year 2013
mowers (SN 1SA1312 and 1SA1318).
3. Secure damper to spindle with E-clip (B) for model
year 2013 mowers (SN 1SA1312 and 1SA1318).
4. Inspect seal (C) in model year 2013 mowers (SN
1SA1312 and 1SA1318). Replace bushing if seal or
O-ring (D) are damaged or missing.
5. Install spindle bushing (E) to spindle. A—Damper D—O-ring
B—E-clip E—Bushing
6. Install spindle assembly to double wall frame, aligning C—Seal
splines to frame slots.
SW00544,000018C -19-12APR13-1/2

NOTE: Ensure that the snap ring is securely seated

around the entire diameter of the spindle bushing
groove. It may be necessary to press the down on
the mower housing to compress the spindle bushing
O-ring sufficiently to install the snap ring.

7. Secure spindle sleeve to housing with new snap ring

MXT006551 —UN—29MAR13
(F).
8. Install actuator (G) to spindle. Ensure that sensor is
installed within double wall frame guides.
9. Install cushion (H) to spindle for model year 2013
mowers (SN 1SA1312 and 1SA1318).
10. Secure actuator to spindle with new E-clip (I).
11. Install cover. (See Install Cover.)
F— Snap Ring H—Cushion, Lift Sensor
G—Actuator, Lift Sensor I— E-clip

SW00544,000018C -19-12APR13-2/2

TM115019 (11DEC13) 40-20-9 021814

PN=95
Repair

TM115019 (11DEC13) 40-20-10 021814

PN=96
Section 50
Electrical
Contents

Page
Page
Group 05—Schematics and Harnesses
Summary of References................................ 50-05-1 Tilt Sensor ..................................................... 50-15-2
Ribbon Harness - Model Year 2012 User Interface ................................................ 50-15-2
(SN 1SA1112 and 1SA1118)...................... 50-05-1 Expected Behavior ........................................ 50-15-2
Ribbon Harness - Model Year 2013 Operation and Diagnosis ............................... 50-15-3
(SN 1SA1312 and 1SA1318)..................... 50-05-2
Wire Harness, Front - Model Group 25—Tests and Adjustments
Year 2012 (SN 1SA1112 and Summary of References................................ 50-25-1
1SA1118) ................................................... 50-05-3 Safety Precautions ........................................ 50-25-1
Wire Harness, Rear - Model Battery Safety ................................................ 50-25-3
Year 2012 (SN 1SA1112 and Battery Tests.................................................. 50-25-3
1SA1118) ................................................... 50-05-4 User Interface System and Service
Wire Harness - Model Year 2013 Access ....................................................... 50-25-4
(SN 1SA1312 and 1SA1318)..................... 50-05-6 MowADVISOR System Check..................... 50-25-14
Wire Harness, Cover - Model Garden Control Mode .................................. 50-25-17
Year 2012 (SN 1SA1112 and Battery and Charge Circuit Test................... 50-25-18
1SA1118) ................................................... 50-05-7 Rear Handle Sensor Test ............................ 50-25-22
Wire Harness, Cover - Model Blade Motor Calibration ............................... 50-25-24
Year 2013 (SN 1SA1312 and Boundary Sensor Tests ............................... 50-25-27
1SA1318)................................................... 50-05-8 Wheel Motor Test......................................... 50-25-30
Wire Harness, Charge Station - Lift Sensor Test............................................ 50-25-33
Model Year 2012 (SN 1SA1112 Tilt Sensor Test............................................ 50-25-35
and 1SA1118) ............................................ 50-05-9 Tilt Sensor Calibration ................................. 50-25-36
Wire Harness, Charge Station - User Interface Switch Tests ......................... 50-25-39
Model Year 2013 (SN 1SA1312 User Settings ............................................... 50-25-42
and 1SA1318).......................................... 50-05-10 Slope Compensation ................................... 50-25-43
Smart Homing.............................................. 50-25-43
Group 10—Component Location Spiral Mode Operation................................. 50-25-43
Summary of References................................ 50-10-1 Mower Log................................................... 50-25-44
Mower Components, Model Programming ............................................... 50-25-44
Year 2012 (SN 1SA1112 and Dealer Technical Assistance
1SA1118) ................................................... 50-10-1 Center (DTAC) ......................................... 50-25-47
Mower Components, Model
Year 2013 (SN 1SA1312 and Group 30—Repair
1SA1318)................................................... 50-10-2 Summary of References................................ 50-30-1
Charge Station Components, Specifications ................................................ 50-30-1
Model Year 2012 (SN 1SA1112 Other Material................................................ 50-30-2
and 1SA1118) ............................................ 50-10-3 Safety Precautions ........................................ 50-30-2
Charge Station Components, Service Area Setup........................................ 50-30-4
Model Year 2013 (SN 1SA1312 Guidance System Repair............................... 50-30-5
and 1SA1318)............................................ 50-10-4 Boundary Wire Repair ................................... 50-30-6
Charge Station Guide Loop
Group 15—Theory of Operation Repair ........................................................ 50-30-7
Summary of References................................ 50-15-1 Charge Station............................................. 50-30-10
Autonomous Control...................................... 50-15-1 Moisture Inside Mower Housing .................. 50-30-11
Boundary Sensor........................................... 50-15-1 Blade Motor ................................................. 50-30-13
Charge Station............................................... 50-15-1 Wheel Motor ................................................ 50-30-13
MowADVISOR............................................... 50-15-1 Remove Cover............................................. 50-30-13
Lift Sensor ..................................................... 50-15-1 Install Cover................................................. 50-30-15
Mower Log..................................................... 50-15-2 Remove Control Panel ................................ 50-30-17
Power Supply ................................................ 50-15-2 Install Control Panel .................................... 50-30-18
Rear Handle Sensor ...................................... 50-15-2 Remove Battery........................................... 50-30-19

Continued on next page

TM115019 (11DEC13) 50-1 021814

PN=1
Contents

Page

Install Battery............................................... 50-30-20

Remove Boundary Sensor - Model
Year 2012 (SN 1SA1112 and
1SA1118) ................................................. 50-30-21
Install Boundary Sensor - Model
Year 2012 (SN 1SA1112 and
1SA1118) ................................................. 50-30-23
Remove Boundary Sensor - Model
Year 2013 (SN 1SA1312 and
1SA1318)................................................. 50-30-24
Install Boundary Sensor - Model
Year 2013 (SN 1SA1312 and
1SA1318)................................................. 50-30-26
Remove Lift Sensor ..................................... 50-30-27
Install Lift Sensor ......................................... 50-30-29
Remove Rear Handle Sensor...................... 50-30-30
Install Rear Handle Sensor.......................... 50-30-31
Remove VCU............................................... 50-30-31
Install VCU................................................... 50-30-32
VCU Repair ................................................. 50-30-32

TM115019 (11DEC13) 50-2 021814

PN=2
Group 05
Schematics and Harnesses
Summary of References • Wire Harness, Cover - Model Year 2012 (SN 1SA1112
and 1SA1118)
• Ribbon Harness - Model Year 2012 (SN 1SA1112 and • Wire Harness, Cover - Model Year 2013 (SN 1SA1312
1SA1118) and 1SA1318)
• Ribbon Harness - Model Year 2013 (SN 1SA1312 and • Wire Harness, Charge Station - Model Year 2012 (SN
1SA1318) 1SA1112 and 1SA1118)
• Wire Harness, Front - Model Year 2012 (SN 1SA1112 • Wire Harness, Charge Station - Model Year 2013 (SN
and 1SA1118) 1SA1312 and 1SA1318)
• Wire Harness, Rear - Model Year 2012 (SN 1SA1112
and 1SA1118)
• Wire Harness - Model Year 2013 (SN 1SA1312 and
1SA1318)
SW00544,000018D -19-25MAR13-1/1

Ribbon Harness - Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT006524 —UN—25MAR13

A—Lift Sensor C—Sensor Ribbon Wire Harness E—User Interface Ribbon Wire
B—Boundary Sensor D—Vehicle Contol Unit (VCU) Harness
SW00544,000018E -19-25MAR13-1/1

TM115019 (11DEC13) 50-05-1 021814

PN=99
Schematics and Harnesses

Ribbon Harness - Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006521 —UN—25MAR13
A—Sensor (Front) Circuit Board C—Boundary Sensor (Rear) E—Vehicle Control Unit (VCU)
B—Sensor Ribbon Wire Harness D—Sensor Ribbon Wire Harness F— User Interface Ribbon Wire
(Front) (Rear)) Harness
SW00544,000018F -19-25MAR13-1/1

TM115019 (11DEC13) 50-05-2 021814

PN=100
Schematics and Harnesses

Wire Harness, Front - Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT006555 —UN—15APR13

A—Blade Motor B—Blade Motor Harness

SW00544,0000190 -19-02APR13-1/1

TM115019 (11DEC13) 50-05-3 021814

PN=101
Schematics and Harnesses

Wire Harness, Rear - Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT006554 —UN—03APR13

B—Blade Motor E—Main Switch H—Boundary Switch K—Diagnostic Port

C—Power Connector F— Vehicle Control Unit (VCU) I— Handle Sensor
D—Right Wheel Motor G—Battery J— Left Wheel Motor
SW00544,0000191 -19-02APR13-1/1

TM115019 (11DEC13) 50-05-4 021814

PN=102
Schematics and Harnesses

TM115019 (11DEC13) 50-05-5 021814

PN=103
Schematics and Harnesses

Wire Harness - Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006558 —UN—05APR13

Continued on next page SW00544,00001E0 -19-05APR13-1/2

TM115019 (11DEC13) 50-05-6 021814

PN=104
Schematics and Harnesses

A—Sensor, Lift (2 used) E—Connector, Charging Wire I— Battery M—Wheel Motor, Left
B—PCB, Boundary Sensors Harness J— Sensor, Rear Boundary N—Vehicle Control Unit (VCU)
C—Blade Motor F— Wheel Motor, Right K—Sensor, Handle
D—Wire Harness, Blade Motor G—Seal L— Connector, Diagnostic
H—Switch, Main Power
SW00544,00001E0 -19-05APR13-2/2

Wire Harness, Cover - Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT002056 —UN—09JAN12
A—Charging Contact D—Speaker F— User Interface PCB H—Power Connector
B—Charging Contact E—User Interface Harness, 20 pin G—User Interface Harness, 40 pin
C—Stop Sensor
SW00544,0000192 -19-25MAR13-1/1

TM115019 (11DEC13) 50-05-7 021814

PN=105
Schematics and Harnesses

Wire Harness, Cover - Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006526 —UN—25MAR13
A—Charging Contact (2 used) C—Retainer, Wire Harness E—Ribbon Wire Harness, VCU
B—Terminal, Charging Contact D—Connector, Charging Wire F— Sensor, Stop
Harness G—PCB, User Interface
SW00544,00001E1 -19-26MAR13-1/1

TM115019 (11DEC13) 50-05-8 021814

PN=106
Schematics and Harnesses

Wire Harness, Charge Station - Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT006553 —UN—02APR13
A—Rear Panel C—Charge Contacts E—Power Supply
B—Charge Station PCA D—Guide Loop F— Boundary Wire
SW00544,0000193 -19-05APR13-1/1

TM115019 (11DEC13) 50-05-9 021814

PN=107
Schematics and Harnesses

Wire Harness, Charge Station - Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006527 —UN—29MAR13
A—Back Panel, Charge Station D—PCA, Charge Station H—Power Supply K—Terminals, Boundary Wire
B—Indicator, Diagnostic E—Charging Contacts I— Guide Loop L— Terminals, Guide Loop
C—Connector, Diagnostic F— Charge Station J— Adapter, MY ‘13 Charge
G—Boundary Wire Station to MY ‘12 Power
Supply
SW00544,00001E2 -19-26MAR13-1/1

TM115019 (11DEC13) 50-05-10 021814

PN=108
Group 10
Component Location
Summary of References • Charge Station Components, Model Year 2012 (SN
1SA1112 and 1SA1118)
• Mower Components, Model Year 2012 (SN 1SA1112 • Charge Station Components, Model Year 2013 (SN
and 1SA1118) 1SA1312 and 1SA1318)
• Mower Components, Model Year 2013 (SN 1SA1312
and 1SA1318)
SW00544,0000194 -19-26MAR13-1/1

Mower Components, Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT002058 —UN—09JAN12
A—Lift Sensor (2 used) F— Right Wheel Motor Location K—Battery Location Q—Vehicle Control Unit (VCU)
B—Boundary Sensor (4 used) G—Power Wire Harness L— 20 Pin User Interface Ribbon R—Boundary Sensor Ribbon
C—Connectivity Module H—Main Power Switch Harness Harness
D—Connectivity Wire Harness I— Battery Wire Harness M—Handle Sensor S—Blade Motor Location
E—Blade Motor Wire Harness Connector N—USB Connector
J— 40 Pin User Interface Ribbon O—USB Wire Harness
Harness P—Left Wheel Motor Location

SW00544,0000195 -19-26MAR13-1/1

TM115019 (11DEC13) 50-10-1 021814

PN=109
Component Location

Mower Components, Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006544 —UN—03APR13
A—Sensor, Lift (2 used) F— Wire Harness, Blade Motor K—Ribbon Harness, User R—Ribbon Harness, Front
B—Connector, Charging Wire G—Wheel Motor Location, Right Interface Sensor
Harness (2 used, installed to H—Wire Harness, Power L— Battery S—Blade Motor Location
cover) I— Switch, Main Power M—Sensor, Handle
C—Sensor, Boundary J— Connector, Battery Wire N—Connector, USB
D—Circuit Board, Sensors Harness O—Wire Harness, USB
E—Wire Harness, Charging P—Wheel Motor Location, Left
(installed to cover) Q—Vehicle Control Unit (VCU)
SW00544,00001E3 -19-05APR13-1/1

TM115019 (11DEC13) 50-10-2 021814

PN=110
Component Location

Charge Station Components, Model Year 2012 (SN 1SA1112 and 1SA1118)

MXT006685 —UN—12APR13

A—Wiring Harness - Charge E—TORX Screw (6 used) I— Screw (7 used) N—Stake (5 used)
Station F— Charge Station Rear Cover J— Charge Station Housing O—Bolt (7 used)
B—Charge Station Control Unit G—Screw (7 used) K—Washer (8 used) P—Tee Nut (7 used)
C—Wiring Harness - Power H—Plate - Connection Support (4 L— Bolt (4 used) Q—Charge Station Pad
Supply used) M—Charging Plate (2 used)
D—Label
SW00544,0000196 -19-12APR13-1/1

TM115019 (11DEC13) 50-10-3 021814

PN=111
Component Location

Charge Station Components, Model Year 2013 (SN 1SA1312 and 1SA1318)

MXT006557 —UN—03APR13

A—Charge Station Back E—Cap Screw (7 used) J— Stake (bag of 150) O—Bolt (3 used)
B—Power Supply Cable, 5m F— Retainer (3 used) K—Base (includes L)
Extension G—Retainer L— Cover
C—Label H—Charge Station Front M—Wiring Harness
D—Screw (6 used) I— Charging Contact Plate N—Printed Circuit Asembly (PCA)
Assembly (2 used)
SW00544,00001E4 -19-05APR13-1/1

TM115019 (11DEC13) 50-10-4 021814

PN=112
Group 15
Theory of Operation
Summary of References • Power Supply
• Autonomous Control • Rear Handle Sensor
• Boundary Sensor • Tilt Sensor
• User Interface
• Charge Station • Expected Behavior
• MowADVISOR • Operation and Diagnosis
• Lift Sensor
SW00544,0000197 -19-11DEC13-1/1

Autonomous Control User selectable mowing schedules direct machine

Programmed operating parameters and onboard sensors operation within the designated mowing area(s). Mowing
allow autonomous control of the machine within the area operation continues until the scheduled mowing period is
established by the boundary wire. The sensors monitor at an end or the battery charge becomes low. The mower
certain conditions of the mower while it is operating. then returns to the charge station.
SW00544,0000198 -19-05FEB13-1/1

Boundary Sensor to go home. The mower follows the boundary wire to

the guide loop.
On board boundary sensors detect the presence of
either the charge station guide loop or the boundary wire When the guide loop is encountered, the boundary
designating the area to be mowed or an obstacle to be sensors act to steer the machine along the guide loop
avoided. toward the charge station.
The machine automatically seeks the boundary wire when During mowing operation, the boundary sensors act to
the charge state becomes low, when the mow session keep the machine operating inside the boundary wire, or
is at an end, or when the mower is manually instructed to avoid keep-out areas designated by the boundary wire.
SW00544,0000199 -19-05FEB13-1/1

Charge Station station monitors and provides a status indication of

boundary wire and guide loop integrity.
Automatic connection for mower battery recharge is made
when the mower docks at the charge station. The mower Power for the charge station is provided by a connected
returns to the charge station when a mowing session is external power supply. For model year 2013 charging
ended or when battery recharge is required. The mower is stations, the boundary wire and guide loop are unpowered
guided to the charge station by onboard sensors following when the mower main power switch is on and the mower
boundary wire and guide loop signals. charging contacts are touching the charge station plates.
Containment and homing signals are sent to the boundary
wire and guide loop from the charge station. The charge
SW00544,000019A -19-12APR13-1/1

MowADVISOR settings, and maintains a log of machine maintenance

parameters during service.
System checks or diagnostic and calibration procedures
can be carried out when the machine is connected to MowADVISOR also provides for communication with the
a computer with MowADVISOR software installed. The Dealer Technical Assistance Center (DTAC) for uploading
software also provides a means of modifying certain user new cases for assistance with service issues.
SW00544,000019C -19-05FEB13-1/1

Lift Sensor Downward movement sensed at both caster wheels is

The front caster wheels on the machine have limited interpreted by the VCU as a condition where the front
free vertical movement, Sensors monitor the position of of the machine has been lifted or has overridden a low
magnetic actuators mounted to the caster wheel spindles. obstacle. The blade motor stops as a safety measure. If
the condition continues for three seconds or longer, the
machine stops with a fault.
SW00544,000019D -19-19MAR13-1/1

TM115019 (11DEC13) 50-15-1 021814

PN=113
Theory of Operation

Mower Log Mower log data is stored for: Battery status; lift, tilt,
The mower log is a MowADVISOR function which contains and boundary sensors; power and stop switches; user
stored system operating information for the machine. interface switches; wheel and blade motors; display LEDs
Log information can be retrieved to compare stored and LCD pixels; and temperature.
performance data with current component operating
All faults, tests, and results information reported when
performance. the mower is connected to MowADVISOR are stored in
the mower log.
SW00544,000019E -19-05FEB13-1/1

Power Supply the charge station, the mower’s internal converter changes
the power supply’s 36V output to 18.5 - 28.7V. The
Power for the mower charge station is provided by a power maximum current provided to the mower battery is 4 amps.
supply connected to a household outlet. When docked at
SW00544,000019F -19-19MAR13-1/1

Rear Handle Sensor machine is in operation, the blade motor stops as a safety
measure. If the handle is touched for more than three
A sensor inside the rear handle detects the presence of seconds, the machine stops with a fault.
a surrounding mass. If the handle is touched while the
SW00544,00001A0 -19-19MAR13-1/1

Tilt Sensor in any direction for more than three seconds results in a
fault condition, and the machine stops moving.
An onboard sensor monitors change in machine position
from the horizontal plane (tilt). Tilt of 30 degrees or more
SW00544,00001A1 -19-05FEB13-1/1

User Interface operating status and battery charge state. Mowing days
and time can be scheduled at the interface.
Current operating information can be accessed through
the onboard user interface. Current information includes Fault codes can be viewed.
SW00544,00001A2 -19-05FEB13-1/1

Expected Behavior Homing

Go Mow Now
The mower will return to the charging station, or “Home”
When the “Go Mow Now” button on the mower control when the battery charge level is reduced to a preset
panel is pressed, the mower will begin a mowing cycle. minimum percentage while mowing, when manually
It will either travel to the launch point saved in the instructed to “Go Home Now” through the on board control
display and select screen or begin mowing immediately, panel, or when the mowing period from a launch point
depending on where the mower is activated. ends. The user interface will display “Homing”.

If the “Go Mow Now” button is pressed with the mower Once the mower returns to the charging station, the
at the charging station and in contact with the charging control panel LED will move to “Mow On Schedule”, and
plates, the mower will proceed to the launch point and the next scheduled mow time will appear in the display.
begin mowing.
Deflection Angle
If the mower is in the mowing area when the “Go Mow
Now” button is pressed, it will begin mowing at that point. The mower normally travels in a straight line when mowing,
and deflects back into the mowing area when it encounters
the boundary wire at the mowing area perimeter. The
angle of deflection when turning from the boundary wire is
dependant on the distance that the mower has travelled.
SW00544,00001A3 -19-05FEB13-1/1

TM115019 (11DEC13) 50-15-2 021814

PN=114
Theory of Operation

Operation and Diagnosis verify successful resolution of a fault condition by showing

removal of a fault indication.
MowADVISOR
Diagnostic Process
Most mower, guidance, and charging system diagnostic
procedures are performed through connection to a With sensor faults identified through MowADVISOR or
computer with MowADVISOR software installed. (See user interface, simple diagnostic steps will help to isolate
MowADVISOR System Check.) an indicated fault condition in some systems.
MowADVISOR also provides for communication with the When a fault is indicated, follow a process of checking
Dealer Technical Assistance Center (DTAC) for uploading for mechanical issues and integrity of wire harness
new cases for assistance with service issues. (See Dealer connections before replacing components.
Technical Assistance Center (DTAC).)
For fault diagnostic codes and diagnostic procedure
User Interface steps, see Fault Diagnosis.
The mower’s user interface provides limited fault For warning diagnostic codes and diagnostic procedure
identification capability. The user interface can be used to steps, see Warning Diagnosis.
SW00544,00001A4 -19-19MAR13-1/1

TM115019 (11DEC13) 50-15-3 021814

PN=115
Theory of Operation

TM115019 (11DEC13) 50-15-4 021814

PN=116
Group 25
Tests and Adjustments
Summary of References • Lift Sensor Test
• Safety Precautions • Tilt Sensor Test
• Battery Safety • Tilt Sensor Calibration
• User Interface Switch Tests
• Battery Tests • User Settings
• User Interface System and Service Access • Slope Compensation
• MowADVISOR System Check • Smart Homing
• Garden Control Mode • Spiral Mode Operation
• Battery and Charge Circuit Test • Mower Log
• Rear Handle Sensor Test • Programming
• Blade Motor Calibration • Dealer Technical Assistance Center (DTAC)
• Boundary Sensor Tests
• Wheel Motor Test
SW00544,00001A5 -19-11DEC13-1/1

Safety Precautions
In certain situations, the autonomous mower may be in a
powered state. Ensure that the mower is in a safe mode
before handling or moving.
Before moving, servicing, or maintaining the mower, push
the stop button (A) at the top of the mower, and then turn

MXT002009 —UN—12JAN12
the main power switch (B) to the OFF (O) position.

A—Stop Button B—Main Power Switch

MXT002010 —UN—06JAN12
Continued on next page SW00544,00001A6 -19-12APR13-1/3

TM115019 (11DEC13) 50-25-1 021814

PN=117
Tests and Adjustments

Only carry mower by rear handle (C) with the blade facing
away. If there is reason to suspect that there may be
moisture inside the mower housing, carry the mower
horizontally until inspection can be carried out. (See
Moisture Inside Mower Housing).

C—Rear Handle

MXT002011 —UN—06JAN12
SW00544,00001A6 -19-12APR13-2/3

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002012 —UN—06JAN12
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
D—Battery Connector
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components If mower cover is opened, immediately separate battery
• Use of protective equipment, such as wire harness connector (D).
grounding devices and non-synthetic clothing
SW00544,00001A6 -19-12APR13-3/3

TM115019 (11DEC13) 50-25-2 021814

PN=118
Tests and Adjustments

Battery Safety could cause other damage. Do not store a

damaged machine in an enclosed area.
IMPORTANT: Avoid Damage! If the machine is
damaged through immersion in water, or Do not charge battery in an enclosed space.
exposure to high heat, impact, or other forces
strong enough to distort the mower or battery Do not store machine or charge battery in wet areas or
housing, contact a service representative areas subject to flooding.
immediately. Disconnect the battery as soon
as possible. Do not store the machine in an Charge battery only with the appropriate power supply.
area where reaction from a damaged battery See “Model Year Compatibility” in Charge Station).
SW00544,00001A7 -19-19MAR13-1/1

Battery Tests
Battery tests include basic tests for physical condition and
electrical performance. More extensive tests can be made
through connection to a computer with MowADVISOR
software installed. (See Battery and Charge Circuit Test.)
Battery access requires removal of the machine cover.

MXT002060 —UN—06JAN12
(See Remove Cover.)
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
A—Cover
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates. • Deformation, discoloration, or perforation may indicate
a damaged battery.
If the mower battery is put in the sleep
mode, do not allow the mower to contact • A noticeable strong odor may indicate that a battery
has been overheated.
the charge station plates.
Safe handling of electronic compo- Battery Electrical Condition
nents requires: • The Battery pack voltage should be between 18.5 and
• Safe dissipation of built up static charge 29.4 Volts.
• Proper handling procedures for components • After a full charge, the voltage difference between cells
• Use of protective equipment, such as should be no more than 50 mV.
grounding devices and non synthetic clothing • With the battery fully charged and disconnected, there
should be little or no voltage drop over 8 hours.
Battery Physical Condition • A battery that has been put to sleep (storage), or that
has seen no charge for over 2 weeks will put itself in
• Battery cover (A) should always be installed over battery. sleep mode and will have no measurable voltage at its
• Battery casing should be smooth and uniform in color. terminals.
SW00544,00001A8 -19-12APR13-1/1

TM115019 (11DEC13) 50-25-3 021814

PN=119
Tests and Adjustments

User Interface System and Service Access

User Interface System
Current operating information can be accessed through
the onboard user interface.
User interface LCD screen contrast can be changed by

MXT002061 —UN—06JAN12
the user without entering the Main Menu. Press up or
down buttons at the user interface to change contrast.
Contrast can also be changed while in the Main Menu.
User Interface Service
NOTE: After software updates, go into the service menu,
select “System”, and reset the factory settings.

1. Open the service menu. A—Enter Button B—Menu Button

a. Hold enter (A) and menu (B) buttons down for 7
seconds.
• User Interface Set-Up Menu
b. Select desired system or procedure. • User Interface Launch Points Menu
2. Refer to User Interface menus for selection.
• User Interface Scheduling Menu
• User Interface Utilities Menu
• User Interface System Flow Chart • User Interface Service Flow Chart
SW00544,00001A9 -19-15AUG13-1/12

User Interface Main Menu

MXT006522 —UN—15APR13

A—Main Menu C—Scheduling E—Launch Points

B—Setup D—Utilities
Continued on next page SW00544,00001A9 -19-15AUG13-2/12

TM115019 (11DEC13) 50-25-4 021814

PN=120
Tests and Adjustments

User Interface Setup Menu

MXT006523 —UN—15APR13
A—Setup Menu D—Navigation H—Sound K—Launch Points
B—Useer Interface E—PIN Code I— Boundary Following
C—Date/Time F— Screenlock J— Cleanup Pass
G—Language
Continued on next page SW00544,00001A9 -19-15AUG13-3/12

TM115019 (11DEC13) 50-25-5 021814

PN=121
Tests and Adjustments

Keep Out Settings

MXT003365 —UN—02AUG12
A—Boundary Wire C—Boundary Wire Extensioin E—Keep Out Area Perimeter G—Charging Station
B—Boundary Wire Perimeter D—Keep Out Area F— Keep Out Area Turn

When at the end of a scheduled mowing session, keep out areas, the number of keep out turns needs to be
minimum battery charge level is reached, or a manual “Go set to zero.
Home Now” command is entered, the mower will return to
the charging station. The mower returns to the charging The odometry feature of the mower measures distance
station by acquiring and then following the boundary wire travelled when in operation. This, and other navigation
when it is next encountered. features can be used to allow the mower to recognize
a keep out area. Keep out area recognition inputs will
If the boundary wire is arranged to establish one or more be determined by keep out area perimeter. Most keep
keep out areas within the mowing area, the mower’s out areas will be detected after the mower travels once
first encounter with the boundary wire may be where it around it. A keep out area with a complex shape may
defines a keep out area. In such cases, the mower must require that the mower travel around it twice (number of
be programmed to recognize and escape the keep out turns = 2) to be detected.
area when homing. If the installation does not include

Continued on next page SW00544,00001A9 -19-15AUG13-4/12

TM115019 (11DEC13) 50-25-6 021814

PN=122
Tests and Adjustments

Set Keep Out Perimeter Keep Out Turns

Use perimeter distance instead of turns if the keep out area The mower must negotiate the set number of keep out
is more round than square. Always try to enable detection turns while following the boundary wire around a keep out
of a keep out area by increasing the keep out distance. area before checking if the distance driven is less than the
Increasing the number of turns to 2 should be used as a value entered for keep out perimeter.
last resort. The keep out area perimeter distance entered
should be the distance (at the set boundary following The default value for keep out turns is one. If the mowing
separation) around the largest Keep Out Area within the area does not have any keep out areas, turns should be
mowing area. The distance is measured and input in set to zero. Most keep out areas will be detected with one
meters. Add at least 10% to the perimeter measurement turn. For very complex keep out area shapes, increase
to compensate for slippage or measuring error. keep out perimeter setting (up to twice actual keep out
perimeter) before increasing the number of turns.
The entered distance is used as a comparative value. The
mower tracks the distance travelled along an encountered The mower tracks the number of turns to navigate around
boundary after homing is initiated. If the mower is travelling a keep out area. If the number of turns exceeds the set
in a circular route and the distance travelled is less than the value, the mower will leave the keep out boundary wire to
entered perimeter value of a keep out area, the mower will reacquire the boundary wire at another location.
leave the boundary wire. The mower will turn 90 degrees, 1. Enter Menu>Setup>Navigation>Keep Out
and again travel until it acquires the boundary wire it at a Settings>Keep Out Turns.
different location to continue the homing process. 2. Use left or right arrow to set desired number of turns.
1. Enter Menu>Setup>Navigation>Keep Out 3. Press Enter to save value.
Settings>Keep Out Perimeter Setting PIN Code
2. Set perimeter distance using plus or minus button.
3. Press Enter to save entry. The PIN code for software version 2.x is 1234. The PIN
code for software version 3.0 and up is 0000.
Set Yard Perimeter
Entering PIN Code
The yard perimeter is the total length (in meters) of the
boundary wire around the perimeter of the mowing area, 1. Push main switch to ON position.
excluding extension(s), keep out area(s), or remote 2. Mower will initialize.
mowing area(s). Measure and enter the yard perimeter - User interface display will read “Mower Initializing”.
distance. The entered distance must be greater than the - Run LED will flash red.
actual distance to ensure that the mower can acquire 3. User interface display will read “Enter Current PIN
the guide loop. Add at least 10% to the perimeter Code. Enter PIN code.
measurement to compensate for slippage or measuring a. Push left or right arrow buttons to move blinking
error. The default distance is 350 meters. cursor through PIN code fields.
b. Push up or down arrow buttons to scroll through
The measured distance is used as a comparative value.
and select a value for each field.
The mower tracks the distance travelled after encountering
c. PIN code for software version 2.x is 1234. PIN code
the boundary wire. The mower must encounter the guide
for software version 3.x is 0000.
loop while travelling along the boundary wire within the
4. Push “Enter” to enter PIN code.
set distance. If the linear distance travelled exceeds the
5. If the entered PIN code is valid:
entered yard perimeter value, the mower will recognize
a. User interface display will read PIN Code Valid.
that it has not encountered the guide loop. The mower will
b. User interface display will read MOWER PAUSED.
then turn 90 degrees and travel at least 10 m (33 ft.) in a
c. Run LED will flash green.
straight line to acquire the boundary wire. If the boundary
d. Read safety awareness message.
is not found after travelling that distance, the mower will
e. Click “Enter” to clear safety message
turn again to search for the boundary wire.
6. If the entered PIN code is not valid:
1. Use the odometry value feature on the mower user a. User interface display will read PIN Code Invalid.
interface to measure the distance travelled around the b. Enter valid PIN code and push Enter button.
mowing area perimeter. c. After three attempts, the system will time out for 10
2. Enter Menu>Setup>Navigation>Keep Out minutes. Use MowADVISOR to reset PIN code.
Settings>Yard Perimeter.
Position mower within boundary wire.
3. Use plus or minus button to set distance value.
4. Press Enter to save entry.
Continued on next page SW00544,00001A9 -19-15AUG13-5/12

TM115019 (11DEC13) 50-25-7 021814

PN=123
Tests and Adjustments

User Interface Launch Points Menu

MXT006529 —UN—15APR13
A—Launch Points Menu E—Settings J— Pt 5____ O—Pt 4____
B—Calibration F— Pt 1____ K—Frequency P—Pt 5____
C—Left G—Pt 21____ L— Pt 1____
D—Right H—Pt 3____ M—Pt 2____
I— Pt 4____ N—Pt 3____

Using Launch Point Menu the shortest travel distance from the charging station.
Setting the direction to use the shortest travel distance will
The Launch Point menu can be used to program the reduce power consumption and minimize mower tracking
mower to start mowing sessions at up to five launch points in travel to the launch point. At the end of the specified
along the boundary wire. Launch points allow the user to duration, the mower will return to the charging station
define where the mower will start to mow and duration of along the same path taken to reach the launch point.
the mowing session from that point before returning to the
charging station. Using launch points will aid in achieving To set launch points:
more even coverage of the mowing area.
1. Set mower at charging station.
NOTE: Mower travel direction from the charging 2. Push up or down arrows and Enter to set launch points
station is as viewed from behind the mower and calibration
when at the charging station. 3. Enter Calibration menu within Launch Points menu to
set start direction. Highlight and check mark desired
Mower travel direction from the charging station to launch direction.
points may be set as either left (L) or right (R). Set the travel 4. The mower will launch from the charging station in
direction for specific launch points in the direction requiring the set direction along the boundary wire. Follow the
Continued on next page SW00544,00001A9 -19-15AUG13-6/12

TM115019 (11DEC13) 50-25-8 021814

PN=124
Tests and Adjustments

mower, and at a point where a launch point is desired 6. Go to Settings screen under Launch Points. Enter
record the odometry number from the user interface. start direction for each launch point.
7. Enter odometry number for each launch point.
NOTE: The mower will enter the charging station 8. Enter the Frequency screen under Launch Points.
at the end of the boundary wire. If the STOP
button is pressed during calibration, place the NOTE: If mowing a separate area, limit duration of
mower in the charging station and restart. mowing session to prevent over mowing.

5. If further launch points are desired, continue to follow

the machine and record additional odometry numbers.
Destination Direction from Charging Odometry Reading Frequency Duration
Station (in minutes)
H 50%
LP1 R 25 30% 15
LP2 R 45 20% 30
LP3
LP4
LP5
9. Enter the desired frequency for the mower to start charge station. The charging station is denoted by an
from each point. Adjust frequency for best coverage H or home symbol at the top of the user interface. If
of the mowing area. Maximum duration at a specified no frequency is set for any of the launch points, the
launch point is the full battery charge (MAX). mower will always launch from the charging station.
All five available points do not need to be used. Launch If all of the mowing area at a launch point is not being
points plus the charging station will equal 100%. Any covered, increase the frequency at that launch point.
starts not assigned to launch points will be from the
Continued on next page SW00544,00001A9 -19-15AUG13-7/12

TM115019 (11DEC13) 50-25-9 021814

PN=125
Tests and Adjustments

Using Navigation Menu

MXT006560 —UN—15APR13
A—Navigation D—Frequency H—Keep Out Perimeter K—Turn Off
B—Boundary Following E—Direction I— Keep Out Turns L— Turn On
C—Boundary Cleanup F— Keep Out Settings J— Spiral Mowing
G—Yard Perimeter

Use the Navigation Menu to select boundary cleanup Option Distance

pass and keep out settings. On the Wire On the wire.
Near 30 cm (1 ft.)
Boundary Following options setting determines how
closely the mower can approach the boundary wire during Standard 61 cm (2 ft.)
homing, which affect the minimum width corridor the Far 91 cm (3 ft.)
mower will enter. a. Push Left or Right arrow to select distance option.
1. Push Up or Down arrows to select Boundary Following b. Press Enter. User interface display will read
menu. Selection Saved.
2. Push Enter. c. Push Back to return to Navigation menu.
3. Push Back to return to Setup menu. Boundary Cleanup Pass Menu
NOTE: Changing boundary following distance Use the Cleanup Pass menu to set frequency and
will change offset from the boundary wire, direction of cleanup passes. The frequency setting for
and thus the distance travelled around the cleanup passes determines how often the mower will
boundary wire. This will affect “yard perimeter” follow the boundary wire for a more consistent cut around
and “keep out perimeter”. the mowing area perimeter.
4. Choose boundary following distance. 1. Push Up or Down arrow to select boundary cleanup
pass menu.
2. Press Enter.

Continued on next page SW00544,00001A9 -19-15AUG13-8/12

TM115019 (11DEC13) 50-25-10 021814

PN=126
Tests and Adjustments

3. Enter desired cleanup pass frequency. Frequency is 5. Enter desired boundary cleanup pass direction.
the ratio of regular mow cycles to cleanup passes. 6. Press Enter.
4. Press Enter. 7. Push Back to return to Navigation menu.
SW00544,00001A9 -19-15AUG13-9/12

User Interface Scheduling Menu

MXT006528 —UN—15APR13
A—Scheduling Menu C—Schedule 2 E—M T W T F S S
B—Schedule 1 D—Schedule 3

Programming Mow On Schedule Mode d. Press Enter.

10. Press Enter to move down to third line for a second
1. Push Menu. mowing time (T2). If a second mowing period is not
2. Use Up or Down arrow to select Scheduling. desired for that day, choose None.
3. Press Enter. 11. Push Enter to move back to first line to schedule
4. Use Up or Down arrow to choose from Schedule 1, additional days and mow times for those days.
Schedule 2, or Schedule 3.
5. Press Enter. NOTE: ALL and ALT Scheduling can be selected
6. Press Left or Right arrow to choose desired day of instead of individual days of the week. ALL
week. schedules all days, and ALT schedules Monday,
7. Press Enter. Wednesday, Friday, and Saturday.
8. Press Enter to move down to first mowing time (T1).
9. Set mowing start and end time. 12. Push Back to save mow times and to repeat
a. Push Up or Down arrow to scroll through hours scheduling setup for additional schedules if desired.
(Schedule time is on a 24 hour clock.) a. Turn mower main power switch to OFF (O).
b. Push right arrow to move cursor to minutes position. b. Wait until user interface screen clears.
c. Push Up or Down arrow to scroll through and select c. Turn mower main power switch to ON (I) to save
from 15 minute increments. settings changes.
Continued on next page SW00544,00001A9 -19-15AUG13-10/12

TM115019 (11DEC13) 50-25-11 021814

PN=127
Tests and Adjustments

User Interface Utilities Menu

MXT006530 —UN—15APR13
A—Utilities Menu D—System Hours G—Battery Version
B—Diagnostics E—Serial Number H—Mower Storage
C—System Information F— Software Version
Continued on next page SW00544,00001A9 -19-15AUG13-11/12

TM115019 (11DEC13) 50-25-12 021814

PN=128
Tests and Adjustments

User Interface Service Menu

MXT006541 —UN—15APR13
A—Service Menu E—Boundary Wire Sensors G—Cell Phone Setup J— Factory Reset
B—Utilities F— Calibration Accelerometers H—Corridor Backing K—Exit
C—Homing Direction I— Display and Select
D—Configuration
SW00544,00001A9 -19-15AUG13-12/12

TM115019 (11DEC13) 50-25-13 021814

PN=129
Tests and Adjustments

MowADVISOR System Check

A comprehensive mower systems operational status
check can be done through connection to a computer with
MowADVISOR software installed.
All faults, tests, and results information reported when
the mower is connected to MowADVISOR are stored in

MXT002068 —UN—06JAN12
the mower log.
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Avoid Damage! Install the MowADVISOR
connector cable to the mower port before
connection to the computer. Connection in this
order is necessary to protect the computer from
possible electrical grounding feedback. A—Main Switch B—Cap

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine b. Connect adapter cable JDG11355 to computer USB
is connected to MowADVISOR. cable (for MY2912 mowers).
3. Connect computer with MowADVISOR diagnostic c. Install adapter cable JDG11355 (for MY2012
software installed to connection port with connector mowers) to mower connector. Install A to A USB
cable JDG11355 for MY2012 mowers (SN 1SA1112 cable JDG11590 (for MY2013) mowers) to mower
and 1SA1118) or A to A USB cable JDG11590 for connector.
MY2013 mowers (SN 1SA1312 and 1SA1318).
d. Install cable to computer USB port.
a. Remove cover (B) from mower connector port.
SW00544,00001AA -19-10APR13-1/6

NOTE: The default PIN code for software version

2x is 1234. The default PIN code for software
version 3x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12

Continued on next page SW00544,00001AA -19-10APR13-2/6

TM115019 (11DEC13) 50-25-14 021814

PN=130
Tests and Adjustments

5. Click on “Agree to License” tab (D) on screen.

NOTE: Charge station and mower charging contacts
should not be touching for system check.

6. Place the mower on the charge station pad, without

contact between mower and charge station charging

MXT002070 —UN—06JAN12
contacts.

D—Agree to License Tab

SW00544,00001AA -19-10APR13-3/6

7. Select “System Check” tab (E) on screen.

E—System Check Tab

MXT002071 —UN—06JAN12
SW00544,00001AA -19-10APR13-4/6

8. Scroll through systems (F) to view and check status of

• Sensors
• Inner Guide Loop state and strength
• Outer Boundary state and strength
• Battery

MXT002072 —UN—06JAN12
• Wheel and Blade Motors
• User Interface function switches
9. Physically check function of corresponding sensors
and switches, and state of boundaries, battery, and
motors. Observe screen for indication of status.
10. Determine cause and correct any indication showing
a red result.

F— Systems

Continued on next page SW00544,00001AA -19-10APR13-5/6

TM115019 (11DEC13) 50-25-15 021814

PN=131
Tests and Adjustments

11. Select “User Settings” tab (G) on screen.

12. Check status of “Mower Safety Shutdown Reset”.
Reset is required when:
• Five “Tilts” in a week (with no caster wheel drop) -
user interface will display “lift sensor failed”

MXT006663 —UN—15FEB13
• Self test failure
• Five blade motor high amperage draw in 15 seconds
- user interface will display “blade motor stalled”
13. Exit MowADVISOR.
14. Remove connector cable from computer and then
from mower.
15. Install cover to mower connector port.
G—User Settings Tab

SW00544,00001AA -19-10APR13-6/6

TM115019 (11DEC13) 50-25-16 021814

PN=132
Tests and Adjustments

Garden Control Mode

When operating in Garden Control Mode, functionality
and limited operation of the mower may be tested or
demonstrated for a customer without the presence of a
boundary wire. Mower functions other than scheduled
mowing or defined mowing operation can be selected and

MXT002106 —UN—11JAN12
demonstrated through the user interface. All safeguarding
functions (i.e. lift, tilt, handle touch, bump detection, etc.)
will be active.
Garden Control Mode can be especially useful when
testing or demonstrating mower tractive capability on a
sloped mowing area. If the mower can successfully climb
a slope (in forward or reverse direction) that is at the
upper end of the specified operating limit, even if the turf
is wet, operation at the site should be acceptable,
A—Main Switch

CAUTION: Avoid Injury! When operating in

Garden Control Mode, the mower blade will be cable JDG 11590 (for MY2013 mowers) to mower
spinning unless it is halted by an onboard safety connector.
feature or the STOP button. Keep hands and
feet away from the blade area while operation d. Install cable to computer USB port.
of the mower is being demonstrated.
4. Click “Mower Settings”.
Because the blade will be spinning, operation in Garden 5. Select “Garden Control Mode”.
Control Mode must be enabled by a service representative.
Use of MowADVISOR with GardenEnabling programming 6. Click “Enable”.
is required.
7. Exit MowADVISOR.
1. Turn mower main switch (A) to ON (I) position.
8. Remove connector cable and install cap to mower
2. Open MowADVISOR (with Garden Enabling installed). connector port.
IMPORTANT: Install the MowADVISOR connector 9. Ensure that the area where the mower is to be
cable to the mower port before connection demonstrated is clear and free of hazards.
to the computer. Connection in this order
10. Click “Play” to start mower operation. Ensure that the
is necessary to protect the computer from
mower remains in a safe area while in operation.
possible electrical grounding feedback.
11. Press the STOP button to halt the mower. The mower
NOTE: Speaker sounds may be distorted for both will stop, and a message will appear at the user
1SA112 and 1SA118 mowers when the machine interface asking if the mode should be continued or
is connected to MowADVISOR. aborted. Choose the desired option.

3. Connect computer with MowADVISOR diagnostic 12. Highlight continue and press enter to resume mower
software installed to connection port with connector operation and to demonstrate other mower functions.
cable JDG11355 (for MY2012 mowers) or A to A USB 13. Press STOP and abort garden control mode operation
cable JDG11590 (for MY2013 mowers). to quit.
a. Remove cover from mower connector port. 14. Operation under Garden Control Mode will time out
b. Connect adapter cable JDG11355 to USB cable (for 15 minutes after enabling. The mower will stop if it is
MY2012 mowers). still operating at that time.

c. Install adapter cable JDG11355 (for MY2012 15. Turn main power switch to OFF (O) position.
mowers) to mower connector. Install connector
SW00544,00001AB -19-10APR13-1/1

TM115019 (11DEC13) 50-25-17 021814

PN=133
Tests and Adjustments

Battery and Charge Circuit Test

Battery condition and charge function can be checked
through connection to a computer with MowADVISOR
software installed.
1. Turn main switch (A) to ON position (I).

MXT002068 —UN—06JAN12
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine A—Main Switch B—Cover
is connected to MowADVISOR.

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector c. Install adapter cable JDG11355 (for MY2012
cable JDG11355 (for MY2012 mowers) or A to A USB mowers) to mower connector. Install A to A USB
cable JDG11590 (for MY2013 mowers). cable JDG11590 (for MY2013) mowers) to mower
connector.
a. Remove cover (B) from mower connector port.
d. Install cable to computer USB port.
b. Connect adapter cable JDG11355 to USB cable (for
MY2912 mowers).
SW00544,00001AC -19-15AUG13-1/6

NOTE: PIN code for mowers with software version

2.x is 1234. PIN code for mowers with
software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12

Continued on next page SW00544,00001AC -19-15AUG13-2/6

TM115019 (11DEC13) 50-25-18 021814

PN=134
Tests and Adjustments

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab

MXT002074 —UN—06JAN12
Continued on next page SW00544,00001AC -19-15AUG13-3/6

TM115019 (11DEC13) 50-25-19 021814

PN=135
Tests and Adjustments

NOTE: The machine must be docked to the charge

station in order to check charging status.

6. Check indicated battery voltage (E), current (F), temp

(G), and state of charge (H).
a. Battery values are serial number, discharge cycle

MXT002075 —UN—09JAN12
counts, and full charge capacity. These are basics
for battery information that help to indicate when the
battery was built and how old it is.
b. Battery voltage, temperature, current, and battery
state of charge will show a green indicator if good
and red if bad.
c. Charge status tests for charging station charging of
the mower. With the mower placed in the charging
E—Voltage H—State of Charge
station for approximately one minute, the battery F— Current I— Charge Status Tab
indicator should show a 1% increase in state of G—Temperature
charge.
d. One button battery test will show all battery tests at
one place in the “Autotest” screen. 8. If the battery shows no charge and the user interface
(UI) will not stay on:
Mower Nominal Battery Voltage Current
Status Charge Value a. Turn the main power switch on.
at Charge
Station IMPORTANT: Avoid Damage! Spinning a rear wheel
Plates
or pushing the mower for more than 1 meter
Docked and 33 - 36 volts less than 28 4 amps (2012 mowers) (3.3 ft.) with the power switch OFF or with the
Charging volts 2.5 amps (2013
mowers) mower asleep will damage the VCU.
Docked 28 volts 0 - 4 amps (2012
and Fully mowers) b. Rotate a rear wheel (UI should blink once).
Charged 0 - 2.5 amps (2013
mowers) c. Quickly place mower in charge station.
Mower Not 18 volts d. Check to see that mower is charging.
Docked
9. Exit MowADVISOR if checks are complete.
• Indicated battery voltage should be from 18.5 to 29.4 10. Remove connector cable from computer and then
volts. Battery voltage of 17 to 20 volts indicates a battery
in marginal recharge condition. from mower if checks are complete.

NOTE: If the battery indicated charge is at 0% when 11. Install cover to mower connector port
placed on the charger, initial charge rate will be Battery Symptom Checks
slow (trickle charge). It may take up to 15 minutes
to see an increase in charge rate. If mow time before required recharge becomes shorter,
or mower requires more charging at charging station, the
• Indicated current should be from 0 to 4 amps for model battery may be aged. Check battery operation.
year 2012 mowers (SN 1SA1112 and 1SA1118). Current
above 4.3 amps indicates a problem. 1. Measure cell voltage difference. Cell voltage
• Indicated current should be from 0 to 2.5 amps for difference should be less than 50 mv.
model year 2013 mowers (SN 1SA1312 and 1SA1318). a. If cell voltage difference is greater than 50 mv,
Current above 3.5 amps indicates a problem. discharge the battery by running the discharge test
• Indicated VCU temperature should be in the range of 0 if possible.
to 32 degrees C. Temperatures in the range of 33 to
70 degrees C are marginal. b. If the discharge test cannot be run, turn the mower
main power switch on and let it sit overnight. Then
7. With machine docked to powered charge station, recharge the battery and retest.
select charge status tab (I) on screen. Wait for
indicated result of charge test. Any charge increase in 2. Measure the amount of time required to discharge the
a battery not fully charged is normal. If the battery was battery through the discharge test.
at 0% charge when placed on the charger, the initial
charge rate will be slow (trickle charge). It may take a. Charge battery.
up to 15 minutes to see an increase in state of charge.
Continued on next page SW00544,00001AC -19-15AUG13-4/6

TM115019 (11DEC13) 50-25-20 021814

PN=136
Tests and Adjustments

d. Install fan blade JDG11415P2 and adapter to blade

CAUTION: Blades are sharp and can cut.
motor shaft.
Use caution and wear gloves when handling
blades or working near blades. e. Adjust height of cut to highest setting.

b. Remove the mower blade. (See Remove Blade.) f. Run blade motor to discharge battery. The test will
take approximately two hours to run. MowADVISOR
c. Remove bolts securing blade shield. Remove blade will display battery discharge time.
shield.
Battery Condition Energy Measured
Good More than 60 wh
Nominal 36 - 60 wh
Bad Less than 36 wh

3. Mower is at the charge station and the User Interface present, the VCU is bad. If voltage is present, the
display wakes up and then shuts down. The battery is bad.
battery may not be charging. Check charge system
components. 4. Mower is at the charge station and the User Interface
display wakes up and then shuts down. The
a. AC power at power supply outlet. battery may be “sleepy”, having too low a charge to
immediately accept a charge. Check charge system
b. With power supply plugged into wall outlet, check components as for the previous condition.
voltage at in-line connector. Voltage should be 35.5
to 36.5 volts. 5. Mower User Interface shows “F-21” (Battery Error)
message. This condition is likely to be a battery
c. Voltage should be 35.5 to 36.5 volts at the power communication issue.
supply connector plugged into the rear of the
charging station. Continuity should be less than 1 • Replace battery with one known to be good.
ohm.
NOTE: Battery management software reads and
d. Check charge station plates, rear terminals, and regulates battery specific information.
interior board and harness for corrosion or loose
connections. • If fault clears, replace battery, and wait 5 minutes for
reading of new battery management software (BMS).
• With no mower present, voltage at charge station • If fault does not clear, check bus lines on VCU
plates should be 18 volts. connector.
• With a known good mower (charges at a different • Check continuity of wiring harness between battery
charge station) that needs charge present, voltage and VCU connector.
at charge station plates should not be less than
34 volts.
• Check for pushed-out pins in wiring harness
connectors.
• If voltage at charge plates is less than specified, • Inspect wiring harness for chafed, corroded, or
open charge station and check wiring harness for broken wires.
continuity.
• If fault is intermittent with a good battery installed,
• Check wiring harness terminals at charge plates the fault is most likely in the wiring harness.
for corrosion or discoloration. Clean or replace
terminals depending on condition. 6. Mower User Interface shows “E-21/F-32” (Battery
Charge FET/Battery Discharge FET closed) message.
e. Check mower contacts for pitting or corrosion.
Ensure that internal wire harness connections to • Check temperature using MowADVISOR. The
contacts are tight. battery management software reads and regulates
battery specific information. The temperature on the
f. Check mower contact wire harness for damage gauge will be read if high. If high, replace battery.
such as discoloration, melting, or broken wires.
• If overcharge is indicated by elevated battery and
g. Check to see if charging wire harness 2 pin wire harness temperature, allow battery to discharge.
connector is plugged in. (Battery may be discharged either by allowing the
mower to mow or by leaving the mower at the charge
h. Plug service cable JDG11415 (part P1) into internal station without touching the charge contacts and
VCU and battery connectors. with the main power switch ON.) Recharge battery.
If battery overcharges again, measure voltage at the
• Measured voltage with battery not charged to battery wire harness connector when battery is fully
100% should be below 28 volts. (Voltage should charged. If voltage exceeds 29.5 volts, replace VCU.
reach 28 volts over time with 100% charge.)
• With the battery wiring harness plugged in,
voltage should be 19 to 28 volts. If voltage is not
Continued on next page SW00544,00001AC -19-15AUG13-5/6

TM115019 (11DEC13) 50-25-21 021814

PN=137
Tests and Adjustments

• Using MowADVISOR, check battery for cell balance, • If battery is shorted in the mower (as for instance,
discharge (mower sits with main switch ON, or mows during testing), it will not re arm (restore voltage)
if possible), and recharge. after the short circuit is removed due to the high
7. Mower User Interface does not power down when the capacitances in the VCU. Wake up the battery after
main power switch is turned OFF. a short circuit by disconnecting it, checking to see if
voltage rises above 18.5 after 30 seconds or more.
• Open mower. Unplug battery wire harness • Reconnect the battery, and place the mower at the
connector, and plug it in again. Turn the mower on, charge station. Check charging voltage. If charging
waiting for the User Interface to power up. Turn the voltage in not as specified, spin a rear wheel and
main switch off again. If the User Interface does not place the mower at the charge station for at least
power down, replace the VCU. 30 minutes. Check the User Interface to see if the
battery takes a charge. If not, replace the battery.
8. Mower User Interface display does not appear when
main power switch is turned on.
SW00544,00001AC -19-15AUG13-6/6

Rear Handle Sensor Test

The rear handle proximity sensor function can be checked
through connection to a computer with MowADVISOR
software installed.
1. Turn main switch (A) to ON position (I).

MXT002068 —UN—06JAN12
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine A—Main Switch B—Cap
is connected to MowADVISOR.

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector c. Install adapter cable JDG11355 (for MY2012
cable JDG11355 (for MY2012 mowers) or A to A USB mowers) to mower connector. Install A to A USB
cable JDG11590 (for MY2013 mowers). cable JDG11590 (for MY2013) mowers) to mower
connector.
a. Remove cover (B) from mower connector port.
d. Install cable to computer USB port.
b. Connect adapter cable JDG11355 to USB cable (for
MY2912 mowers).
Continued on next page SW00544,00001AD -19-10APR13-1/5

TM115019 (11DEC13) 50-25-22 021814

PN=138
Tests and Adjustments

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
SW00544,00001AD -19-10APR13-2/5

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab

MXT002074 —UN—06JAN12
SW00544,00001AD -19-10APR13-3/5

6. Select “Handle Sensor” (E) on screen.

E—Handle Sensor

MXT002076 —UN—06JAN12

Continued on next page SW00544,00001AD -19-10APR13-4/5

TM115019 (11DEC13) 50-25-23 021814

PN=139
Tests and Adjustments

7. Check to see that indication in “Handle Sensor

Activated” window (F) changes to “Yes” when mower
rear handle is grasped.
8. If the indication does not change to “Yes”, replace the
handle sensor. (See Remove Rear Handle Sensor.)

MXT002077 —UN—06JAN12
9. Exit MowADVISOR.
10. Remove connector cable from computer and then
from mower.
11. Install cover to mower connector port.

F— Handle Sensor Activated

Window

SW00544,00001AD -19-10APR13-5/5

Blade Motor Calibration

The blade motor calibration feature in MowADVISOR
provides a means of checking motor rotation speed and
direction.
1. Turn main switch (A) to ON position (I).

MXT002068 —UN—06JAN12
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine A—Main Switch B—Cap
is connected to MowADVISOR.

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector c. Install adapter cable JDG11355 (for MY2012
cable JDG11355 (for MY2012 mowers) or A to A USB mowers) to mower connector. Install A to A USB
cable JDG11590 (for MY2013 mowers). cable JDG11590 (for MY2013) mowers) to mower
connector.
a. Remove cover (B) from mower connector port.
d. Install cable to computer USB port.
b. Connect adapter cable JDG11355 to USB cable (for
MY2912 mowers).
Continued on next page SW00544,00001AE -19-01APR13-1/4

TM115019 (11DEC13) 50-25-24 021814

PN=140
Tests and Adjustments

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
SW00544,00001AE -19-01APR13-2/4

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab

MXT002074 —UN—06JAN12
Continued on next page SW00544,00001AE -19-01APR13-3/4

TM115019 (11DEC13) 50-25-25 021814

PN=141
Tests and Adjustments

NOTE: The boundary wire must be powered for

the blade to start.

6. Select “Blade Motor” tab (E) on screen.

7. Enter desired blade motor test rpm in blade speed
window (F).

MXT002079 —UN—20JUL12
CAUTION: The blade motor turns during the
blade motor test when the mower is inside the
boundary wire. Keep hands away from the mower
blade when conducting blade motor tests.

8. Select “Start” (G) on screen. After a safety warning is

acknowledged and lift sensors are checked, the blade
motor will turn. Blade motor rpm and temperature will
E—Blade Motor Tab H—Stop
be displayed. F— Window I— Mower Log
G—Start
9. Select “Stop” (H) on screen.
10. Select “Mower Log” (I) to store blade motor operating
data. 14. Remove connector cable from computer and then
11. Enter “0” in blade speed window (F). from mower.

12. Select “Update”. 15. Install cap to mower connector port.

13. Exit MowADVISOR.

SW00544,00001AE -19-01APR13-4/4

TM115019 (11DEC13) 50-25-26 021814

PN=142
Tests and Adjustments

Boundary Sensor Tests

Self-Diagnostic Boundary Wire and Guide Loop Tests
The charge station monitors the integrity of the boundary
wire and guide loop. If both systems are in good condition,

MXT006681 —UN—12APR13
the indicator light at the top of the charge station glows
steadily. If a fault is detected in either system, a blink
code is shown.
1. If a guidance or docking problem is apparent for the
mower and the charge station indicator (A) is not
showing a steady or blinking light, check:
• Power at charge station power supply outlet.
• Charge station power supply is plugged in. A—Indicator Light
2. If the charge station indicator is showing a steady
light, the boundary wire and guide loop are in working
condition. charge station power supply from the outlet. Wait for a
few seconds, and plug the power supply in again.
3. If the charge station indicator shows a blinking light,
ensure that boundary wire and guide loop connections 5. Remove connectors for indicated system, and check
are tight at back of charge station. resistance across wire ends. If three short blinks are
shown, check both systems independently.
4. If all connections are tight, observe blink code to
determine problem area(s): • If one short blink is shown, check the boundary wire.
• one long and one short - check outer wire. • If two short blinks are shown, check the guide loop
wire.
• one long and two short - check guide loop. • If three short blinks are shown, check both systems.
• one long and three short - check both.
6. If resistance is greater than 10 ohms across guide
Model year 2013 electronic hardware has circuit loop or boundary wire, check charge station circuit for
protection against excessive power dissipation. The the indicated system:
circuit may be tripped if there is excessive current drain
from the charging station through either the guide loop • Secure a short length of wire to the terminals of the
or boundary wire for an extended period of time. indicated system(s) at the charge station.
If the protecting circuit is tripped, the charge station
• If charge station indicator now shows a steady light,
repair or replace faulty boundary or guide wire.
indicator will be flashing and the mower user interface
will show uuuu. If this situation occurs, unplug the
Continued on next page SW00544,00001AF -19-08APR13-1/7

TM115019 (11DEC13) 50-25-27 021814

PN=143
Tests and Adjustments

MowADVISOR Boundary Sensor Test

1. Turn switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection

MXT002068 —UN—06JAN12
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR.

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector A—Main Power Switch B—Diagnostic Port Cap
cable JDG11355 (for MY2012 mowers) or A to A USB
cable JDG11590 (for MY2013 mowers).
a. Remove cap (B) from mower diagnostic port. c. Install adapter cable JDG11355 (for MY2012
mowers) to mower connector. Install A to A USB
b. Connect adapter cable JDG11355 to USB cable (for cable JDG11590 (for MY2013) mowers) to mower
MY2912 mowers). connector.
d. Install cable to computer USB port.
SW00544,00001AF -19-08APR13-2/7

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
SW00544,00001AF -19-08APR13-3/7

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab
MXT002074 —UN—06JAN12

Continued on next page SW00544,00001AF -19-08APR13-4/7

TM115019 (11DEC13) 50-25-28 021814

PN=144
Tests and Adjustments

6. Select “Boundary Sensors” (E) on screen.

E—Boundary Sensors

MXT002080 —UN—06JAN12
SW00544,00001AF -19-08APR13-5/7

NOTE: The machine must be located at the docking

station in order to display boundary signal
and strength values.

7. Place the mower inside the boundary wire on the

guide loop.

MXT006531 —UN—29MAR13
SW00544,00001AF -19-08APR13-6/7

8. Check status of sensors in ID column (F). All ID’s

should be the same.
9. Check position of sensor to boundary wire or guide loop
in In/Out Status column (G). All should read “inside”.
10. For both guide loop and boundary wire: If one sensor
indication reads “outside” and all others read “inside”:
a. Click “calibrate” (H).

MXT006650 —UN—15FEB13
b. Cycle main power switch after change.
11. If all sensors read “outside” but mower is inside
boundary wire or aligned with guide loop, the wires
are incorrectly installed at the charging station. Check
guide loop or boundary wire connections.
12. Check boundary wire Signal Strength column (I). All
should be greater than 100.
13. Exit MowADVISOR. F— ID Column H—Calibrate
G—In/Out Status Column I— Signal Strength Column
14. Remove connector cable from computer and then
from mower.
15. Install cover to mower connector port.
SW00544,00001AF -19-08APR13-7/7

TM115019 (11DEC13) 50-25-29 021814

PN=145
Tests and Adjustments

Wheel Motor Test

The wheel motor feature in MowADVISOR provides a
means of checking motor rotation speed and direction.
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.

MXT002068 —UN—06JAN12
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR. A—Main Switch B—Cover

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector
cable JDG11355 (for MY2012 mowers) or A to A USB c. Install adapter cable JDG11355 (for MY2012
cable JDG11590 (for MY2013 mowers). mowers) to mower connector. Install A to A USB
cable JDG11590 (for MY2013) mowers) to mower
a. Remove cover (B) from mower connector port. connector.
b. Install adapter cable JDG11355 to mower connector. d. Install cable to computer USB port.
SW00544,00001B0 -19-10APR13-1/8

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
SW00544,00001B0 -19-10APR13-2/8

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab
MXT002074 —UN—06JAN12

Continued on next page SW00544,00001B0 -19-10APR13-3/8

TM115019 (11DEC13) 50-25-30 021814

PN=146
Tests and Adjustments

6. Place secure support (E) under mower to raise rear

wheels from surface.

E—Support

MXT002082 —UN—06JAN12
SW00544,00001B0 -19-10APR13-4/8

7. Select “Wheel Motors” (F) on screen.

F— Wheel Motors

MXT002083 —UN—06JAN12
SW00544,00001B0 -19-10APR13-5/8

8. Wheel motor maximum speed is dependant on model

year and equipment installed to the mower. Enter
the appropriate wheel motor speed when conducting
wheel motor tests.
• Maximum mowing speed for model year 2012 (SN
1SA1112 and 1SA1118) is 30 cm/sec.

MXT002084 —UN—06JAN12
• Maximum mowing speed for model year 2013 (SN
1SA1312 and 1SA1318) is 45 cm/sec.
• Maximum mowing speed for model year 2012 (SN
1SA1112 and 1SA1118) with model year 2913
bumper and front caster kits installed is 45 cm/sec.
Enter right wheel motor maximum speed in screen
window (G).
9. Click on “Start” button (H). G—Screen window H—Start Button

Continued on next page SW00544,00001B0 -19-10APR13-6/8

TM115019 (11DEC13) 50-25-31 021814

PN=147
Tests and Adjustments

NOTE: A safety message will appear warning of

machine motion if it is not supported with
drive wheels free of the surface. Ensure
that the machine is safely supported before
acknowledging the screen message.

MXT002085 —UN—06JAN12
10. Ensure that machine is supported with both wheels
free of surface. Click “OK” button (I) to continue if
machine is safely supported.

I— OK Button

SW00544,00001B0 -19-10APR13-7/8

11. With wheel motor turning, motor speed (J) and current
(K) information will be displayed.
• An indicated wheel motor speed of less than 37
cm/sec may indicate a failing wheel motor.
• An indicated wheel motor current of 1 Amp or more
may indicate a failing wheel motor.

MXT002086 —UN—06JAN12
12. Click “Stop” button (L) to stop wheel motor.
13. Enter “0” in screen window (G), and click “update”.
14. Click “Mower Log” button (M) to log performance
information.
NOTE: Wheel(s) may turn slightly with zero value entered.

15. Enter 0 for wheel motor speed value and select “Start”. J— Motor Speed M—Mower Log Button
K—Current Information N—Update
16. Select “Stop”, and then “Update” (N). L— Stop Button

NOTE: Use the same value for left wheel motor calibration
as used for the right wheel motor.
19. Remove connector cable from computer and then
17. Repeat procedure for left wheel motor. from mower..
18. Exit MowADVISOR. 20. Install cover to mower connector port.
SW00544,00001B0 -19-10APR13-8/8

TM115019 (11DEC13) 50-25-32 021814

PN=148
Tests and Adjustments

Lift Sensor Test

Lift sensors located near each front caster wheel monitor
the position of magnets mounted to the caster wheel
spindles. Downward movement sensed at both caster
wheels is interpreted by the VCU as a condition where the
front of the machine has been lifted or has overridden a

MXT002068 —UN—06JAN12
low obstacle. Test lift sensors to ensure that they function
correctly.
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from A—Main Switch B—Cover
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine b. Connect adapter cable JDG11355 to USB cable (for
is connected to MowADVISOR. MY2912 mowers).
c. Install adapter cable JDG11355 (for MY2012
3. Connect computer with MowADVISOR diagnostic mowers) to mower connector. Install A to A USB
software installed to connection port with connector cable JDG11590 (for MY2013) mowers) to mower
cable JDG11355 (for MY2012 mowers) or A to A USB connector.
cable JDG11590 (for MY2013 mowers).
d. Install cable to computer USB port.
a. Remove cover (B) from mower connector port.
SW00544,00001B1 -19-10APR13-1/5

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
Continued on next page SW00544,00001B1 -19-10APR13-2/5

TM115019 (11DEC13) 50-25-33 021814

PN=149
Tests and Adjustments

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab

MXT002074 —UN—06JAN12
SW00544,00001B1 -19-10APR13-3/5

6. Select “Lift Sensors” (E) on screen.

7. Lift mower right and left sides so that front caster
spindles drop to limit of travel.
8. Lift front of mower so that both front caster spindles
drop to limit of travel.

MXT002087 —UN—06JAN12
E—Lift Sensors

SW00544,00001B1 -19-10APR13-4/5

9. Check that indication in corresponding right or left

caster wheel “Lift Sensor Activated” windows (F)
changes to “Yes” when mower sides and front are lifted.
10. If activation condition does not change, check that
caster spindles slide freely in spindle sleeves. Clean

MXT002088 —UN—06JAN12
or replace caster wheel assembly as required.
11. If caster wheels move freely, check alignment of
spindle mounted sensor magnets. (See Install Lift
Sensor.)
12. If sensor magnets are properly aligned, check wire
harness connections. (See Install Lift Sensor.)
13. If sensor connectors are secure, replace sensor. (See
Install Lift Sensor.) F— Lift Sensors Activated
Windows
14. Retest sensor function.
15. If indication does not change to “Yes”, check for fault
and repair. (See Boundary Sensor Tests.) 18. Install cover to mower connector port.
16. Exit MowADVISOR.
17. Remove connector cable from computer and then
from mower.
SW00544,00001B1 -19-10APR13-5/5

TM115019 (11DEC13) 50-25-34 021814

PN=150
Tests and Adjustments

Tilt Sensor Test

An onboard sensor monitors change in machine position
from the horizontal plane (tilt).
Tilt of 30 degrees or more in any direction results in a fault
condition, shutting down the machine.

MXT002068 —UN—06JAN12
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both A—Main Switch B—Cap
1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR.
c. Install adapter cable JDG11355 (for MY2012
3. Connect computer with MowADVISOR diagnostic mowers) to mower connector. Install A to A USB
software installed to connection port with connector cable JDG11590 (for MY2013) mowers) to mower
cable JDG11355 (for MY2012 mowers) or A to A USB connector.
cable JDG11590 (for MY2013 mowers).
d. Install cable to computer USB port.
a. Remove cover (B) from mower connector port.
b. Install adapter cable JDG11355 to mower connector.
SW00544,00001B2 -19-01APR13-1/4

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
Continued on next page SW00544,00001B2 -19-01APR13-2/4

TM115019 (11DEC13) 50-25-35 021814

PN=151
Tests and Adjustments

5. Check mower tilt sensor for threshold tilt indication.

a. Zero digital level on test surface.
b. Hold digital level (D) across mower hood.
c. Rotate mower sideways to any angle over an
indicated 30 degrees of tilt. Hold position for at least
3 seconds.

MXT002089 —UN—06JAN12
d. Observe user interface display (E) for “E18: Mower
Tilted” message.
e. Clear fault if indicated.
f. Repeat test in opposite direction.
g. Clear fault.

D—Digital Level E—Display

SW00544,00001B2 -19-01APR13-3/4

h. Place digital level lengthwise on mower hood and

zero level indication.
i. Hold level against mower, and rotate mower forward
to just over an indicated 30 degrees of tilt. Hold
position for three seconds or longer.
j. Observe user interface display for “E18: Mower

MXT002090 —UN—06JAN12
Tilted” message.
k. Clear fault if indicated.
l. Repeat test in opposite direction.
m. Clear fault.
6. Remove connector cable from computer and then
from mower.
7. Install cover to mower connector port.
SW00544,00001B2 -19-01APR13-4/4

Tilt Sensor Calibration

If machine consistently shuts down with a “Mower Tilted”
fault indication at less than 30 degrees tilt, the tilt sensor
may need calibration.
1. Place machine on a flat work surface (A) that is level
to ±1 degree both left to right and front to back.
MXT002091 —UN—06JAN12

A—Work Surface

Continued on next page SW00544,00001B3 -19-05APR13-1/6

TM115019 (11DEC13) 50-25-36 021814

PN=152
Tests and Adjustments

2. Turn main switch (A) to ON position (I).

3. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from

MXT002092 —UN—06JAN12
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR.

4. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector
cable JDG11355 (for MY2012 mowers) or A to A USB
cable JDG11590 (for MY2013 mowers). B—Main Switch C—Cap

a. Remove cover (C) from mower connector port.

cable JDG11590 (for MY2013) mowers) to mower
b. Connect adapter cable JDG11355 to USB cable (for connector.
MY2912 mowers).
d. Install cable to computer USB port.
c. Install adapter cable JDG11355 (for MY2012
mowers) to mower connector. Install A to A USB
SW00544,00001B3 -19-05APR13-2/6

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

5. Enter PIN code at user interface (D) at prompt.

D—User Interface

MXT002093 —UN—06JAN12
SW00544,00001B3 -19-05APR13-3/6

6. Select “Manual Test and Calibrations” tab (E) on

screen.

E—Manual Test and

Calibrations Tab
MXT002094 —UN—06JAN12

Continued on next page SW00544,00001B3 -19-05APR13-4/6

TM115019 (11DEC13) 50-25-37 021814

PN=153
Tests and Adjustments

7. Select “Tilt Sensor” (F) on screen.

F— Tilt Sensor

MXT002095 —UN—06JAN12
SW00544,00001B3 -19-05APR13-5/6

8. Check tilt sensor (accelerometer) indication (G). If

either or both values are not 0, calibrate tilt sensor.
9. Click on “Calibrate Tilt Sensor” tab (H) on screen.
10. Wait for indicated completion of calibration.

MXT002096 —UN—11JAN12
11. Turn main power switch off, and then back on.
12. Exit MowADVISOR.
13. Remove connector cable from computer and then
from mower.
14. Install cover to mower connector port.

G—Axis Values H—Tab

SW00544,00001B3 -19-05APR13-6/6

TM115019 (11DEC13) 50-25-38 021814

PN=154
Tests and Adjustments

User Interface Switch Tests

The display and buttons test provides a means of checking
the function of user interface switches.
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.

MXT002068 —UN—06JAN12
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds may be distorted for both

1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR. A—Main Switch B—Cap

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector
cable JDG11355 (for MY2012 mowers) or A to A USB c. Install adapter cable JDG11355 (for MY2012
cable JDG11590 (for MY2013 mowers). mowers) to mower connector. Install A to A USB
cable JDG11590 (for MY2013) mowers) to mower
a. Remove cover (B) from mower connector port. connector.
b. Connect adapter cable JDG11355 to USB cable (for d. Install cable to computer USB port.
MY2912 mowers).
SW00544,00001B4 -19-01APR13-1/7

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12
Continued on next page SW00544,00001B4 -19-01APR13-2/7

TM115019 (11DEC13) 50-25-39 021814

PN=155
Tests and Adjustments

5. Select “Manual Test and Calibrations” tab (D) on

screen.

D—Manual Test and

Calibrations Tab

MXT002074 —UN—06JAN12
SW00544,00001B4 -19-01APR13-3/7

6. Select “Display and Buttons” (E) on screen.

E—Display and Buttons

MXT002097 —UN—11JAN12
SW00544,00001B4 -19-01APR13-4/7

7. Press listed function controls (F) at machine user

interface.
8. Check windows (G) on screen for indication of function
control response.
9. Select “Start” button (H) for user interface display test.

F— Function Controls H—Start Button

G—Windows
MXT006651 —UN—15FEB13

Continued on next page SW00544,00001B4 -19-01APR13-5/7

TM115019 (11DEC13) 50-25-40 021814

PN=156
Tests and Adjustments

10. Check display screen for pixel (I) and character (J)
display tests.

I— Pixel Display Test J— Character Display Test

MXT002099 —UN—11JAN12
MXT002100 —UN—11JAN12
SW00544,00001B4 -19-01APR13-6/7

11. Select “Stop” button (K) to end display test.

12. Remove connector cable from computer and then
from mower.
13. Install cover to mower connector port.

MXT002101 —UN—11JAN12
K—Stop button

SW00544,00001B4 -19-01APR13-7/7

TM115019 (11DEC13) 50-25-41 021814

PN=157
Tests and Adjustments

User Settings
NOTE: Turn the main power switch off and then on after
each setting change to save the settings.

The user settings function provides a means of changing

selected user settings for the machine.

MXT002068 —UN—06JAN12
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.
A—Main Switch B—Cap
NOTE: Speaker sounds may be distorted for both
1SA112 and 1SA118 mowers when the machine
is connected to MowADVISOR.
c. Install adapter cable JDG11355 (for MY2012
3. Connect computer with MowADVISOR diagnostic mowers) to mower connector. Install A to A USB
software installed to connection port with connector cable JDG11590 (for MY2013) mowers) to mower
cable JDG11355 (for MY2012 mowers) or A to A USB connector.
cable JDG11590 (for MY2013 mowers).
d. Install cable to computer USB port.
a. Remove cover (B) from mower connector port.
b. Connect adapter cable JDG11355 to USB cable (for
MY2912 mowers).
SW00544,00001B5 -19-01APR13-1/3

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface

MXT002069 —UN—06JAN12

Continued on next page SW00544,00001B5 -19-01APR13-2/3

TM115019 (11DEC13) 50-25-42 021814

PN=158
Tests and Adjustments

NOTE: Cycle power off and on to save changed

setting after each change.

5. Select “User Settings” tab (D) on screen to:

• “Date/Time” to enter date and time values.

MXT002102 —UN—11JAN12
• Change PIN code.
• “Reset PIN Code” to change from default PIN.
• Write new mower serial number after replacing VCU.
• Write connectivity SIM card PIN.
6. Remove connector cable from computer and then
from mower.
7. Install cover to mower connector port.

D—Tab

SW00544,00001B5 -19-01APR13-3/3

Slope Compensation compensation to function properly, the tilt sensor must be

properly calibrated. See Tilt Sensor Calibration.
The mower will maintain a course when navigating across
a sidehill through use of the tilt sensor. In order for slope
SW00544,00001B6 -19-11DEC13-1/1

Smart Homing With sufficient distance available between the charging

Use of Smart Homing can reduce tracking and make more station and an opposing boundary wire, the guide loop can
battery operating time available for mowing. With the be extended to provide more opportunity for the mower to
Smart Homing feature, the mower seeks the guide loop acquire the guide loop when in Smart Homing mode. Do
when battery charge level drops to 38%. When the guide not extend the guide loop beyond the maximum specified
loop is acquired, the mower follows it to the charge station length. Do not extend the guide loop closer to a boundary
for a more direct return. If battery charge level drops to wire than the minimum specified distance.
33% before the guide loop is found, standard homing Specification
protocol is followed. The mower follows the boundary wire Guide Loop—Length
when next encountered, and follows it back to the guide (max.)............................................................................................. 300 m
loop and charging station. (984 ft.)
Guide Loop—Distance
NOTE: The guide loop is installed as a continuous parallel
(max.)............................................................................................. 150 m
loop. The maximum guide loop extension from
(432 ft.)
the charging station connection point is thus half
Guide Loop to Boundary
of the maximum specified wire length.
Wire—Gap (min.)............................................................................... 1 m
(3.3 ft.)
SW00544,00001B7 -19-05FEB13-1/1

Spiral Mode Operation blade motor current draw decreases below 1 amp for at
least 2 seconds.
When operating in spiral mode, the mower will remain
in a high growth area. The mower will begin operating Transition from standard navigation to spiral mode can be
in a spiral pattern if it encounters an area of taller grass tested by observing mower operation when moving from
resulting in increased blade motor current draw. Spiral short to tall grass conditions. If the mower operates in
operating mode is initiated when blade motor current draw spiral mode when mowing an area of short grass, bench
exceeds 1 amp for 2 seconds. Spiral mode will continue check blade motor current draw.
until the mower encounters an obstacle or boundary or
SW00544,00001B8 -19-27MAR13-1/1

TM115019 (11DEC13) 50-25-43 PN=159

021814
Tests and Adjustments

Mower Log • Parts replacement information

All faults, tests, and results displayed while MowADVISOR
• Active fault log
is plugged into the mower are stored in the mower log.
• Mower faults
• User settings
The mower log stores: • Service history
• Programming
• Search and import of program files • DTAC cases
SW00544,00001B9 -19-14FEB13-1/1

Programming
Manual Programming allows the user to pull software
from the computer to install on a mower without internet
connection.
Automatic Programming pulls the newest software from
the server, saves the software to the computer, and

MXT002068 —UN—06JAN12
programs a connected mower.
The programming functions provide means for changing
charge station and machine operating parameters.
1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection A—Main Switch B—Cap
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.
b. Install adapter cable JDG11355 to USB connector
NOTE: Speaker sounds may be distorted when the cable (for MY12).
machine is connected to MowADVISOR. c. Install adapter cable JDG11355 ( for MY12) or cable
JDG11590 (for MY13) to mower port connector.
3. Connect computer with MowADVISOR diagnostic
software installed to connection port with connector d. Install cable to computer USB port.
cable JDG11355.
a. Remove cap (B) from mower connector port.
SW00544,00001BB -19-10APR13-1/5

NOTE: The default PIN code for mowers with software

version 2.x is 1234. The default PIN code for
mowers with software version 3.x is 0000.

4. Enter PIN code at user interface (C) at prompt.

C—User Interface
MXT002069 —UN—06JAN12

Continued on next page SW00544,00001BB -19-10APR13-2/5

TM115019 (11DEC13) 50-25-44 021814

PN=160
Tests and Adjustments

5. Select “Programming” tab (D) on screen.

D—Programming Tab

MXT002109 —UN—11JAN12
Continued on next page SW00544,00001BB -19-10APR13-3/5

TM115019 (11DEC13) 50-25-45 021814

PN=161
Tests and Adjustments

Reprogramming
IMPORTANT: Do not perform mower programming
tasks with the mower docked in the
charge station. Damage to electronic
components may result.

MXT002068 —UN—06JAN12
1. Ensure that mower main power switch (A) is in ON
(I) position.
2. Ensure that adapter cable JDG11355 (for MY12) or
JDG11590 (for MY13) is securely installed to mower
connector port (B).
3. If MowADVISOR connection status shows
“communication lost” or “communication failed”, this is
an indication that mower programming failed.
A—Main Switch B—Cap
4. If MowADVISOR shows “Communication Lost”, and
there is connection between the mower and computer
(the start LED will likely be red), try programming
again (manually or automatically) to resolve the issue. 6. Turn main power switch (A) to ON position (O).

a. In the text field below the programming buttons 7. Ensure that indicated mower battery charge level is
“programming” must appear two times. at least 35%.

b. Running points ( . . . . ) appearing after the second 8. Open MowADVISOR.

“programming” line show the program is working. IMPORTANT: Install the MowADVISOR connector
c. Do not interrupt the programming or disconnect the cable to the mower port before connection
mower during programming. to the computer. Connection in this order
is necessary to protect the computer from
5. If MowADVISOR shows “disconnected” and the user possible electrical grounding feedback.
interface is stuck, turn the mower main power switch
off and then back on. 9. Connect computer with MowADVISOR software
installed to mower connection port with connector
a. If the mower does turn off and then back on,
cable JDG11355.
reprogram using MowADVISOR.
a. Remove cap (B) from mower connector port.
b. If the mower does not respond to cycling the power
switch, open the mower and unplug the battery b. Install adapter cable JDG11355 to USB connector
overnight. If the mower wakes up when the battery (for MY12).
is plugged back in, reprogram the mower.
c. Install cable JDG11355 (for MY12) or JDG11590
c. Do not interrupt programming or disconnect the (for MY13) to mower port connector.
mower during programming.
d. Install cable to computer USB port.
d. If the mower does not wake up, replace the VCU.
e. If the mower start LED is green and the user
interface message has not changed, reprogram
again.
Continued on next page SW00544,00001BB -19-10APR13-4/5

TM115019 (11DEC13) 50-25-46 021814

PN=162
Tests and Adjustments

10. Click “Automatic Reprogramming” (C) on the screen.

IMPORTANT: Do not turn off the mower while
performing mower programming tasks. Damage
to electronic components may result.

NOTE: MowADVISOR will go to the network and pull

MXT002110 —UN—11JAN12
the newest software to automatically program
the mower. If mower is not connected, the
newest software file will be downloaded from the
server and will be saved in the MowADVISOR
folder of the computer C drive.
If programming is interrupted, reprogram
from the beginning.

11. Click on “agree not to disconnect” message window. C—Automatic Reprogramming

SW00544,00001BB -19-10APR13-5/5

Dealer Technical Assistance Center (DTAC)

1. Turn main switch (A) to ON position (I).
2. Open MowADVISOR.
IMPORTANT: Install the MowADVISOR connector
cable to the mower port before connection

MXT002068 —UN—06JAN12
to the computer. Connection in this order
is necessary to protect the computer from
possible electrical grounding feedback.

NOTE: Speaker sounds are distorted when the machine

is connected to MowADVISOR.

3. Connect computer with MowADVISOR diagnostic

software installed to connection port with connector
cable JDG11355. A—Main Switch B—Cap

a. Remove cap (B) from mower connector port.

b. Install adapter cable JDG11355 to mower connector.
c. Install cable to computer USB port.
SW00544,00001BC -19-05FEB13-1/3

4. Select DTAC tab (C) on screen.

C—DTAC Tab MXT002111 —UN—11JAN12

Continued on next page SW00544,00001BC -19-05FEB13-2/3

TM115019 (11DEC13) 50-25-47 021814

PN=163
Tests and Adjustments

5. Enter case information in screen windows.

• Select “Create Case” (D) to present a new case.
• Choose “Service”, “Parts”, or “Marketing” tabs (E) for
desired routing of message.
• Enter known information into the DTAC case fields.
Information must be supplied for fields bordered in

MXT002112 —UN—11JAN12
red.
• Provide full information in the problem details field.
• Choose the desired callback option from drop down
list (F). If no callback is required because the case
is for information only, select the “no callback req”
option.
• Enter the appropriate priority classification, with a 1
priority being the highest and a 4 the lowest, from
drop down list (G).
D—Create Case G—List
• Choose the appropriate type of assistance from drop E—Tabs H—List
down list (H) for routing of case information. F— List I— Edit
• Choose action to be taken from tabs at bottom.
NOTE: A submitted DTAC case cannot be edited. To
update a submitted case, go to the DTAC system.
• Choose “Submit” to send.
6. Remove connector cable and install cap to mower
• Choose “Edit” (I) to update information for a saved connector port.
DTAC case.
SW00544,00001BC -19-05FEB13-3/3

TM115019 (11DEC13) 50-25-48 021814

PN=164
Group 30
Repair
Summary of References • Remove Boundary Sensor - Model Year 2012 (SN
1SA1112 and 1SA1118)
• Safety Precautions • Remove Boundary Sensor - Model Year 2013 (SN
• Service Area Setup 1SA1312 and 1SA1318)
• Guidance System Repair • Install Boundary Sensor - Model Year 2012 (SN
• Boundary Wire Repair 1SA1112 and 1SA1118)
• Charge Station Guide Loop Repair • Install Boundary Sensor - Model Year 2013 (SN
• Charge Station 1SA1312 and 1SA1318)
• Moisture Inside Mower Housing • Remove Lift Sensor
• Blade Motor • Install Lift Sensor
• Wheel Motor • Remove Rear Handle Sensor
• Remove Cover • Install Rear Handle Sensor
• Install Cover • Remove VCU
• Remove Control Panel • Install VCU
• Install Control Panel • VCU Repair
• Remove Battery • Inspection Log
• Install Battery
SW00544,00001BD -19-11DEC13-1/1

Specifications
Item Measurement Specification
Boundary Wire Specifications
Wire (maximum) Length 300 m
(984 ft.)
Wire (buried) Depth 3—15 cm
(1.2—6.5 in.)
Wire (maximum) Resistance 10 ohms
Guide Loop Specifications
Guide Loop (minimum) Length 2m
(6.5 ft.)
Guide Loop (spread) Width 13 cm
(6 in.)
Guide Loop Depth (maximum) 15 cm
(6 in.)
Guide Loop (maximum) Resistance 10 ohms
Torque Specifications
Cover Bolts Torque 4.2±0.5 N·m
(37±4 lb.-in.)
Control Panel Screws Torque 0.5±0.1 N·m
(4.4±0.9 lb.-in.)
Battery Cover Screws Torque 2.2±0.5 N·m
(19.4±4.4 lb.-in.)
Boundary Sensor Screws Torque 1.1±0.2 N·m
(9.7±1.7 lb.-in.)
Lift Sensor Screws Torque 1.1±0.2 N·m
(9.7±1.7 lb.-in.)
VCU Screws Torque 4.8±0.5 N·m
(42.5±4.4 lb.-in.)
SW00544,00001BE -19-05FEB13-1/1

TM115019 (11DEC13) 50-30-1 021814

PN=165
Repair

Other Material
Number Name Use
TY25744 (U.S.) NLGI Grade 2 Multi Purpose Extreme Use to protect blade edges during
Duty Synthetic Grease off season storage.

Use for dielectric protection of

mower power switch and charging
station terminals

SW00544,00001BF -19-05FEB13-1/1

Safety Precautions
IMPORTANT: Avoid Damage! If the machine is
damaged through immersion in water, or
exposure to high heat, impact, or other forces
strong enough to distort the mower or battery
housing, contact a service representative

MXT002009 —UN—12JAN12
immediately. Disconnect the battery as soon
as possible. Do not store the machine in an
area where reaction from a damaged battery
could cause other damage. Do not store a
damaged machine in an enclosed area.

Handle the machine and its battery safely. Store the

machine safely when not in use. See Seasonal Services
section.
• Store machine in a cool and dry protected area during
off season storage.
• Do not leave mower connected to charging station
during off season storage.
• Charge battery only with the provided power supply.
• Do not charge battery in an enclosed space.

MXT002010 —UN—06JAN12
• Do not store machine or charge battery in wet areas or
areas subject to flooding.
• In certain situations, the mower may be in a powered
state. Ensure that the mower is in a safe mode before
handling or moving.
Before moving, servicing, or maintaining the mower, push
the stop button (A) at the top of the mower, and then turn
the main power switch (B) to the OFF (O) position.
A—Stop Button B—Main Power Switch

Continued on next page SW00544,00001C0 -19-11DEC13-1/3

TM115019 (11DEC13) 50-30-2 021814

PN=166
Repair

IMPORTANT: Avoid damage! If it is suspected that

moisture may be present inside the mower
housing, turn the main power switch off.
Carry the mower level until inspection and
service can be carried out.

Carry mower by rear handle (C) with the blade facing away.

C—Rear Handle

MXT002011 —UN—06JAN12
SW00544,00001C0 -19-11DEC13-2/3

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002012 —UN—06JAN12
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
D—Battery Connector
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components If mower cover is opened, immediately separate battery
• Use of protective equipment, such as wire harness connector (D).
grounding devices and non-synthetic clothing
SW00544,00001C0 -19-11DEC13-3/3

TM115019 (11DEC13) 50-30-3 021814

PN=167
Repair

Service Area Setup

A—Conductive Grounded Mat C—Grounding Connector F— Charge Station MXT006652 —UN—15FEB13

B—Grounding Wrist Strap (with D—Grounded GFCI Outlet G—Boundary Wire
in-series 1 megaohm resister) E—Charge Station Power Supply H—Guide Loop
I— Non-Conductive Work
Surface

Operation of both the mower and its charge station to damage through electrostatic discharge (ESD). (See
are dependent on integrated electronic control units Handling and Protection of Electronic Components.)
and sensors. These devices, if not handled properly
during storage and service procedures, are susceptible Workstation Setup
SW00544,00001C1 -19-01APR13-1/3

ESD Kit ..............................................................JDG11451

Dissipate electrostatic charge
Continued on next page SW00544,00001C1 -19-01APR13-2/3

TM115019 (11DEC13) 50-30-4 021814

PN=168
Repair

ESD sensitive devices should only be handled or installed assist in performing system checks and operating setup
at a properly set up ESD workstation. A grounded, procedures on the mower. A non-conductive work surface
conductive mat (A) and wrist strap (B), are basic elements (I) should be used for the mower test and service area.
of an ESD workstation. ESD kit JDG11451 contains a
grounded mat and wrist strap. The mat and wrist strap The test boundary wire area should be large enough to
should be connected to electrical ground (C). Installation of contain the mower with sufficient separation from the
ground fault circuit interrupters (GFCIs) is recommended charge station contacts to ensure that the charge station
for work area outlets (D). Connection to this ground point and mower contacts will not touch. The boundary wire
is most easily accomplished by securing workstation and guide loop should be securely taped in place to the
grounding connectors under the center screw of a properly work surface with cloth adhesive (duct) tape to prevent
grounded wall outlet. Other safeguards must be followed movement.
in order to prevent damage to ESD sensitive devices.
Test Area Setup
A test area with installed power supply (E), charge
station (F), boundary wire (G), and guide loop (H) will
SW00544,00001C1 -19-01APR13-3/3

Guidance System Repair A detected fault in either the boundary wire or guide loop
system will be indicated by a blink code.
The machine is contained within the mowing area by a
signal from the boundary wire. The machine is directed • One blink indicates a problem with the boundary wire.
into the charge station by a signal from the guide loop. The • Two blinks indicate a problem with the guide loop.
signals originate from, and are monitored by the charge • Three blinks indicate a problem with both systems.
station. Integrity of the boundary wire and guide loop are • A solid signal indicates proper operation of both
necessary to maintain the signal and proper operation. systems.
If the machine stops while mowing for no apparent reason, NOTE: If the boundary signal is lost after a software
or if it has difficulty in docking at the charge station, there update to the mower, but the status indicator is
may be a guidance problem. If the machine displays solid and the boundary system worked properly
an F05 fault or E01 or E03 warning, check the system before the update: Unplug the charge station power
status indicator at the top of the charge station housing. supply from the outlet and plug it back in.
SW00544,00001C2 -19-09APR13-1/1

TM115019 (11DEC13) 50-30-5 021814

PN=169
Repair

Boundary Wire Repair

If the diagnostic indicator at the top of the charge station
displays one blink, or an F05 Fault (No Boundary Signal)
is indicated at the mower user interface display, and
voltage is present at the boundary wire charge station
terminals, test for continuity in the boundary wire.
1. Remove machine from charge station.

MXT006667 —UN—21FEB13
2. Remove power supply plug from outlet.
3. Test for continuity across terminals (A). A boundary
wire in good condition will show continuity, with a
maximum resistance of 10 ohms.
4. If boundary wire does not show continuity, or if
resistance exceeds specification, determine location
of fault in boundary wire.
a. If the mower stops with a boundary fault while A—Boundary Wire Terminals
operating, the area where mower stops is likely to
be near the boundary wire break if the mower has
damaged the wire.
d. Cover the spliced wire section with insulation and
b. Check for signs of aeration, digging, or other apply heat to shrink. Wire splice must be protected
maintenance activity in the area of boundary wire. to prevent corrosion.
c. Check for signs of animal digging in the area of a e. Check boundary wire for continuity and to ensure
buried wire. that measured resistance is within specification.
d. Check for a cut or break in a surface installed wire. f. Rebury the wire if installed underground.
5. Locate and repair the wire. 6. Apply dielectric grease to outside pair of charge
station terminals.
a. Remove any corrosion from the wire ends at the
fault. 7. Reinstall boundary wire connectors to charge station
terminals.
b. Install a section of heat shrink insulation to the wire.
c. Apply and secure a wire splice.
Item Measurement Specification
Boundary Wire Specifications
Wire (maximum) Length 350 m
(1147.5 ft.)
Wire (buried) Depth 3—15 cm
(1.2—6.5 in.)
Wire (maximum) Resistance 10 ohms
SW00544,00001C3 -19-12APR13-1/1

TM115019 (11DEC13) 50-30-6 021814

PN=170
Repair

Charge Station Guide Loop Repair

If the diagnostic indicator (A) at the top of the charge
station displays two blinks, and voltage is present at the
guide loop charge station terminals, test for continuity in
the guide loop.
1. Remove machine from charge station.

MXT006676 —UN—22FEB13
2. Remove power supply plug from outlet.
3. Test for continuity across guide loop wires (B). A guide
loop in good condition will show continuity, with a
maximum resistance of 10 ohms.
4. If guide loop does not show continuity, or if resistance
exceeds specification, determine location of fault.
a. Check for signs of aeration, digging, or other
maintenance activity in the area of guide loop. A—Indicator B—Terminals
b. Check for signs of animal digging in the area of a
buried wire.
d. Cover the spliced wire section with insulation and
c. Check for a cut or break in a surface installed wire.
apply heat to shrink. Wire splice must be protected
5. Locate and repair the wire break. to prevent corrosion.
a. Remove any corrosion from the wire ends at the e. Check guide loop for continuity and to ensure that
fault. measured resistance is within specification.
b. Install a section of heat shrink insulation to the wire. f. Rebury the wire if installed underground.
c. Apply and secure a wire splice. 6. If the existing guide loop is found be in poor condition,
or to have multiple breaks, replace the guide loop.
Continued on next page SW00544,00001C4 -19-12APR13-1/3

TM115019 (11DEC13) 50-30-7 021814

PN=171
Repair

MXT002116 —UN—12JAN12

A—Left Boundary Wire H—Install right boundary wire K—Install guide loop wire parallel
B—Left boundary wire up to 15 cm (5 in.) in front of and 13 cm (5 in.) apart
connection charge station pad edge L— Guide Loop
C—Left side guide loop I— Extend guide loop at least 1 M—Boundary wire buried 3 to
connection m (3.3 ft) from boundary wire 5 cm (1.2 to 6 in.), and at
D—Right side guide loop crossing point. same depth as guide loop at
connection J— Install boundary wire at least crossing.
E—Right boundary wire 1 m (3.3 ft) from guide loop N—Left and right boundary wires
connection installed side by side with
F— Right Boundary Wire 1 cm (0.4 in.) maximum
G—Install boundary wire at least separation
36 cm (14 in.) from charge
station

Continued on next page SW00544,00001C4 -19-12APR13-2/3

TM115019 (11DEC13) 50-30-8 021814

PN=172
Repair

NOTE: For best homing performance, the guide loop

8. Securely install connectors to wire ends. Install wire
wire must be installed to specification for depth,
connectors to terminals at back of charge station.
(if buried), length, parallel distance, and wire size
and type. Refer to installation instructions. • Apply dielectric grease to charge station terminals.
• Install guide loop wire connectors to inside pair of
7. Install a new guide wire to specification. Leave terminals (C—D). Do not cross wires.
sufficient length of wire at the ends to allow attachment
to the charge station after the station is located in the 9. Secure pad in desired position with stakes.
desired position.
Item Measurement Specification
Guide Loop Specifications
NOTE: The guide loop must extend Length (minimum) 2m
into the mowing area beyond (6.5 ft.)
the point where it crosses
the boundary wire in front
of the charging station for
a minimum distance of 1
m. Guide loop length is the
length of the wire between
guide loop terminals at the
charging station.

Guide Loop
Guide Loop Length (maximum) 350 m
(1147 ft.)
Guide Loop Width (maximum) 13 cm
(6 in.)
Guide Loop Depth (maximum) 15 cm
(6 in.)
Guide Loop Resistance (maximum) 10 ohms
SW00544,00001C4 -19-12APR13-3/3

TM115019 (11DEC13) 50-30-9 021814

PN=173
Repair

Charge Station
If a short circuit occurs with the mower not in residence,
Charging contacts must be kept clean to ensure good the charge station will self- protect and limit current. The
contact between the charge station and mower contacts. charge station will reset automatically.
Periodically inspect contacts to ensure that they are clean
and free from damage. If the mower is turned off and not touching the charge
station plates, the battery will go to sleep. To restart, turn
• Clean contacts of any dirt or debris. the mower switch on, and turn a rear wheel while holding
• Remove any scratches or pitting that may occur on the rear handle.
contact surfaces.
Limited compatibility allows some interchange of
• Ensure that contact plates are installed to bottom of components between MY12 and MY13 mower charging
charge station pockets.
systems. Refer to the table below for compatibility.
If a short circuit occurs between the charge station plates
due to moisture or accumulated debris, the contacts must
be cleaned.
Model Year 2012 Power Supply Model Year 2012 Charge Station Model Year 2012 Mower
Model Year 2013 Power Supply No
Model Year 2013 Charge Station Adapter Needed (Part number With model year 2012 power supply
SAU13452) and adapter SAU13452
Model Year 2013 Mower Yes No, not compatible

MY13 Control Unit in MY12 Charge Station

1. Remove screws (A) securing MY12 charge station
back cover. Remove cover.

A—Screw - 6 used

MXT006666 —UN—21FEB13
SW00544,00001C5 -19-09APR13-1/3

2. Install MY13 charge station control unit (CSCU) (B)

pn SAU12983.
3. Replace MY12 wiring harness with MY13 harness (C)
pn SAU12985.
NOTE: Wiring harness adapter SAU12985 can be
used to connect a MY13 charging station board
inside a MY12 charging station back cover, or
to connect a MY12 power supply externally to
MXT006664 —UN—21FEB13

a MY13 charging station board.

4. Install wiring harness adapter (D) pn SAU13452.

5. Reuse ferrites (E) originally installed in MY12 station.
6. Route wires away from cover attachment points, and
reinstall back cover. Secure cover with six screws.

B—Control Unit D—Adapter

C—Wiring Harness E—Ferrite

Continued on next page SW00544,00001C5 -19-09APR13-2/3

TM115019 (11DEC13) 50-30-10 021814

PN=174
Repair

MY13 Charge Station with MY12 Power Supply

1. Open cover (A) at back of MY13 charging station.
2. Connect MY12 power supply connector (B) to adapter
SAU13452 (C).
3. Install adapter to MY13 charge station wiring harness
connector (D).

MXT006665 —UN—21FEB13
4. Reinstall cover.

A—MY13 Charge Station Rear C—Adapter SAU16452

Cover D—MY13 Charge Station
B—MY12 Power Supply Connector
Connector

SW00544,00001C5 -19-09APR13-3/3

Moisture Inside Mower Housing

If mower housing or height of cut seals are compromised,
moisture may enter the mower housing. Indications of
possible moisture presence are inconsistent operation
or readings from boundary sensors, or fading of user
interface display characters.

MXT006671 —UN—21FEB13
Possible entry points for moisture are the height of cut
adjuster seal, mower charging contacts, displaced cover
to housing seal, or faulty wiring harness seals at the
service connection port and main power switch.
The mower should not be washed with water, especially
with a stream of water as from a garden hose. If water has
been used to wash the mower, it should be immediately
inspected for the presence of moisture within the mower
housing.
IMPORTANT: Avoid Damage! Do not turn the
mower over. If moisture within the housing is
suspected, the mower should not be tilted or
upended. Immediately disconnect the mower

MXT006672 —UN—21FEB13
battery and carry out required service.

• Without lifting or tilting the mower, remove screws (A) at

front, middle, and rear of housing securing the mower
cover.

A—Hex Screw (6 used)

Continued on next page SW00544,00001DA -19-09APR13-1/2

TM115019 (11DEC13) 50-30-11 021814

PN=175
Repair

• Lift the cover, and immediately disconnect battery

connector (B). Disconnect user interface ribbon cable
(C), and charging harness connector (D).
• Check integrity of seal (E) and seals (F) at the mower
handle. If these seals are in good condition, it is unlikely
there is moisture inside the housing.
•

MXT006673 —UN—21FEB13
Inspect the area between the mower housing double
walls (G). Remove any moisture found between the
double walls with a soft cloth.
• If moisture is found inside the mower housing seal (H),
allow the mower to air dry. Do not use a blow dryer or
cloth to dry electronic components.
• Check internal components, such as sensors, charging
contacts, user interface, and wiring harness connectors
for secure attachment.
• Ensure that the charging contact assembly inside the B—Battery Connector
C—Ribbon Cable Connector
D—Charging Connector
cover is completely seated behind tabs (I).
• Inspect seals between the height of cut assembly
and mower housing, and the blade shield and mower
housing.
Replace the mower battery if it is sitting in water. If no
water is present around the battery, inspect for damage
such as bulging, distortion, or signs of overheating. If no
damage is apparent, do not replace the battery.

MXT006674 —UN—21FEB13
If the user interface will not display text, check the user
interface wiring harness connectors. Replace the ribbon
cable wire harness, especially if corrosion is present. If
text is still not present, replace the user interface. Test
user interface; if there is still no display, replace vehicle
control unit (VCU).
Reassemble the mower, and test all safety functions
(stop, bump, lift, tilt, and handle sensor). Test operation
(in particular the boundary sensor in, out, or unknown) E—Perimeter Seal G—Outer Housing Area
for consistency. If any of these functions do not perform F— Wiring Harness Seals H—Area Inside Perimeter Seal
correctly, replace the corresponding circuit board.

I— Charging Contact
Assembly Mounting Tabs

MXT006675 —UN—21FEB13

SW00544,00001DA -19-09APR13-2/2

TM115019 (11DEC13) 50-30-12 021814

PN=176
Repair

Blade Motor
The blade motor is not repairable. Blade motor service is
limited to replacement of a faulty motor. (See Remove
Blade Motor and Install Blade Motor.)
SW00544,00001C6 -19-05FEB13-1/1

Wheel Motor
The wheel motors are not repairable. Wheel motor service
is limited to replacement of a faulty motor. (See Remove
Wheel Motor and Install Wheel Motor.)
SW00544,00001C7 -19-05FEB13-1/1

Remove Cover
1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
IMPORTANT: Avoid damage! Do not invert machine
to remove cover bolts. Damage to electronic

MXT002009 —UN—12JAN12
components may result if moisture is present
inside mower housing. Remove cover bolts and
cover with machine in an upright position.

3. If it is suspected that there may be moisture inside

mower housing, do not tilt mower to remove cover.
Remove cover with mower in an upright position. See
Moisture Inside Mower Housing).

A—Stop Button B—Main Switch

MXT002010 —UN—06JAN12
Continued on next page SW00544,00001C8 -19-12APR13-1/3

TM115019 (11DEC13) 50-30-13 021814

PN=177
Repair

4. Remove bolts (C) securing cover to double wall

housing.

C—Bolts (6 used)

MXT002117 —UN—11JAN12
SW00544,00001C8 -19-12APR13-2/3

IMPORTANT: Electronic components may be

damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT006677 —UN—22FEB13
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
D—Battery Wire Harness F— Flat Ribbon Wire Harness
nents requires: Connector Connector
E—Charging Wire Harness
• Safe dissipation of built-up static charge Connector
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing
9. Remove connector (F) from VCU.
5. Separate cover from double wall housing at rear 10. Remove cover.
handle.
IMPORTANT: Avoid Damage! If moisture is present in
6. Lift and move cover forward to reveal wire harness mower housing, dry with a soft cloth. If moisture
connectors. is present on electronic components, allow to
7. Immediately separate battery wire harness connector air dry. Do not use a blow dryer or cloth to
(D). remove moisture from electronic components.

8. Disconnect connector (E). 11. Inspect housing interior for moisture.

SW00544,00001C8 -19-12APR13-3/3

TM115019 (11DEC13) 50-30-14 021814

PN=178
Repair

Install Cover
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component

MXT006678 —UN—22FEB13
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates. A—Housing Seal B—Wiring Harness Seal
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge 2. Ensure that seals (B) are in good condition and
• Proper handling procedures for components properly installed.
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

1. Ensure that seal (A) is in good condition and properly

seated to housing inner wall before installing cover.
SW00544,00001C9 -19-12APR13-1/4

IMPORTANT: Ensure that wire harness connectors

are properly aligned before installing multi-pin
connectors. Misalignment of connectors may
result in bent terminal pins and improper
or failed connections.

3. Position cover forward on machine, allowing access

MXT006679 —UN—22FEB13
to VCU connections.
4. Align and press connector (C) straight into circuit
board socket.
5. Join connector (D).
6. Join connector (E).

C—Flat Ribbon Wire Harness E—Battery Wire Harness

Connector Connector
D—Charging Circuit Wire
Harness Connector

Continued on next page SW00544,00001C9 -19-12APR13-2/4

TM115019 (11DEC13) 50-30-15 021814

PN=179
Repair

7. Fit front of cover (F) to groove at front of double wall

frame.
8. Close cover. Ensure that cover edge is aligned with
outer double wall frame groove (G).

F— Wall Frame G—Groove

MXT002121 —UN—11JAN12
SW00544,00001C9 -19-12APR13-3/4

9. Secure cover with bolts (H). Tighten bolts to

specification.
Specification
Cover Bolts—Torque.............................................................4.2±0.5 N·m
(37±4 lb.-in.)

10. Place mower on wheels. Wake mower:

MXT002122 —UN—11JAN12
a. Hold rear handle.
b. Turn mower main switch to ON position (I).
c. Spin a rear wheel.
d. Reset date and time.

H—M6x20 Hex Flange Bolt (6

used)

SW00544,00001C9 -19-12APR13-4/4

TM115019 (11DEC13) 50-30-16 021814

PN=180
Repair

Remove Control Panel

1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
IMPORTANT: Electronic components may be
damaged by improper handling. See Handling

MXT002009 —UN—12JAN12
and Protection of Electronic Components.
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:

MXT002010 —UN—06JAN12
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

3. Remove cover. (See Remove Cover.)

A—Stop Button B—Main Switch

SW00544,00001CA -19-10APR13-1/3

4. Remove screws (C) securing panel to cover.

5. Rotate panel rearward, and remove panel from cover.

C—TORX® Screw (4 used)

MXT002123 —UN—11JAN12

TORX is a trademark of Camcar/Textron

Continued on next page SW00544,00001CA -19-10APR13-2/3

TM115019 (11DEC13) 50-30-17 021814

PN=181
Repair

IMPORTANT: Exercise care when removing or

installing ribbon cable connectors. Ensure
that connectors are properly aligned and
are moved only within alignment guides.
Connector contacts may be damaged or bent
if the connector is misaligned or twisted
during disassembly or assembly.

MXT002124 —UN—11JAN12
6. Retract retainers (D) and carefully remove wire
harness connector (E) from circuit board.
7. Remove interface panel.

D—Retainers E—Connector

SW00544,00001CA -19-10APR13-3/3

Install Control Panel

IMPORTANT: Exercise care when removing or
installing ribbon cable connectors. Ensure
that connectors are properly aligned and
are moved only within alignment guides.
Connector contacts may be damaged or bent

MXT002125 —UN—11JAN12
if the connector is misaligned or twisted
during disassembly or assembly.

1. Ensure that ribbon cable connector (A) is aligned with

socket. Press connector straight into socket.

A—Connector

SW00544,00001CB -19-01APR13-1/3

2. Ensure that seal (B) is in place and is in good condition.

3. Align control panel tab (C) to slot in cover. Rotate
panel forward to installed position while pulling ribbon
cables through opening.

B—Seal C—Tab

MXT002126 —UN—11JAN12

Continued on next page SW00544,00001CB -19-01APR13-2/3

TM115019 (11DEC13) 50-30-18 021814

PN=182
Repair

4. Install screws (D) securing panel to cover. Tighten

screws to specification.
Specification
Control Panel
Screws—Torque....................................................................0.5±0.1 N·m
(4.4±0.9 lb.-in.)

MXT002127 —UN—11JAN12
5. Install cover. (See Install Cover.)

D—TORX® Screw (4 used)

TORX is a trademark of Camcar/Textron

SW00544,00001CB -19-01APR13-3/3

Remove Battery
1. Ensure that the battery is completely discharged
before removal for shipping or recycling.
a. Place the mower in a controlled area.
b. Set mower to run until discharged.

MXT002009 —UN—12JAN12
c. Enter “Go mow now” command.
d. Allow mower to run until battery is discharged, or
run battery discharge test in MowADVISOR.
2. Push stop button (A).
3. Turn main switch (B) to OFF (O)position.
IMPORTANT: Electronic components may be
damaged by improper handling. See Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in

MXT002010 —UN—06JAN12
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo- A—Stop button B—Main Switch
nents requires:
• Safe dissipation of built-up static charge 4. Remove cover. (See Remove Cover.)
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing
Continued on next page SW00544,00001CC -19-12APR13-1/2

TM115019 (11DEC13) 50-30-19 021814

PN=183
Repair

5. Disconnect battery power connector (C).

6. Take care not to damage boundary sensor (D) or
sensor wiring harness.
7. Remove screws (E) securing battery assembly to
machine.

MXT002128 —UN—11JAN12
CAUTION: Do not crush, heat, or incinerate
the battery. Do not short circuit, dismantle, or
immerse the battery in any liquid.

8. Remove battery assembly.

C—Connector E—TORX® Screws (4 used)

D—Sensor

TORX is a trademark of Camcar/Textron

SW00544,00001CC -19-12APR13-2/2

Install Battery
When replacing the battery, only install an original
equipment or manufacturer’s listed direct replacement
battery. Do not mix battery types, sizes, or manufacturer.
1. Install battery to housing base. Ensure that battery
wire harness is routed through opening (A) in base.

MXT006680 —UN—22FEB13
2. Install cover over battery. Align and insert base locking
tabs (B) to cover.

A—Battery Base Opening B—Battery Base Locking Tab

SW00544,00001CD -19-09APR13-1/2

NOTE: The battery is installed to the mounting platform

with the wire harness facing the VCU.

3. Install cover and battery to machine and secure with

screws (C). Tighten screws to specification.
Specification
MXT002129 —UN—22FEB13

Battery Cover
Screws—Torque....................................................................2.2±0.5 N·m
(19.4±4.4 lb.-in.)

4. Install mower cover. (See Install Cover.)

C—TORX®Screw (4 used)

TORX is a trademark of Camcar/Textron

SW00544,00001CD -19-09APR13-2/2

TM115019 (11DEC13) 50-30-20 021814

PN=184
Repair

Remove Boundary Sensor - Model Year 2012

(SN 1SA1112 and 1SA1118)
1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
3. If there is any reason to suspect that there may be

MXT002009 —UN—12JAN12
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower
Housing).
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.

MXT002010 —UN—06JAN12
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as A—Stop Button B—Main Switch
grounding devices and non-synthetic clothing

4. Remove cover. (See Remove Cover.)

Continued on next page SW00544,00001CE -19-12APR13-1/3

TM115019 (11DEC13) 50-30-21 021814

PN=185
Repair

5. Remove front (C) or rear (D) boundary sensor as

indicated by fault test.

C—Front Sensors D—Rear Sensor

MXT002130 —UN—11JAN12
MXT002131 —UN—11JAN12
SW00544,00001CE -19-12APR13-2/3

IMPORTANT: Exercise care when removing or

installing ribbon cable connectors. Ensure
that connectors are properly aligned and
are moved only within alignment guides.
Connector contacts may be damaged or bent
if the connector is misaligned or twisted

MXT002132 —UN—11JAN12
during disassembly or assembly.

a. Carefully remove ribbon cable connector (E) from

circuit board.
b. Remove 2 TORX® screws (F) securing sensor to
mounting posts. Remove sensor.

E—Connector F— Screws

TORX is a trademark of Camcar/Textron

SW00544,00001CE -19-12APR13-3/3

TM115019 (11DEC13) 50-30-22 021814

PN=186
Repair

Install Boundary Sensor - Model Year 2012

(SN 1SA1112 and 1SA1118)
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)

MXT006535 —UN—29MAR13
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:

MXT006536 —UN—29MAR13
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

1. Install boundary sensor.

a. Align and install sensor over mounting post (A).
b. Secure sensor with screws (B). Tighten screws to A—Mounting Post C—Connector, Ribbon Harness
specification. B—TORX® Screw (2 used)
Specification
Boundary Sensor
Screw—Torque......................................................................1.1±0.2 N·m if the connector is misaligned or twisted
(9.7±1.7 lb.-in.) during disassembly or assembly.
IMPORTANT: Exercise care when removing or c. Align left, center, or right connector (C) appropriate
installing ribbon cable connectors. Ensure to sensor position to socket guides. Press connector
that connectors are properly aligned and straight into socket.
are moved only within alignment guides.
Connector contacts may be damaged or bent 2. Install cover. See Install Cover).
TORX is a trademark of Camcar/Textron
SW00544,00001E5 -19-12APR13-1/1

TM115019 (11DEC13) 50-30-23 021814

PN=187
Repair

Remove Boundary Sensor - Model Year 2013

(SN 1SA1312 and 1SA1318)

MXT002009 —UN—12JAN12
SW00544,00001E6 -19-12APR13-1/4

1. Push stop button (A).

2. Turn main switch (B) to OFF (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower
Housing).

MXT002010 —UN—06JAN12
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer A—Stop Button B—Main Switch
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep • Safe dissipation of built-up static charge
mode, do not allow the mower to contact • Proper handling procedures for components
the charge station plates. • Use of protective equipment, such as
grounding devices and non-synthetic clothing
Safe handling of electronic compo-
nents requires: 4. Remove cover. See Remove Cover).
Continued on next page SW00544,00001E6 -19-12APR13-2/4

TM115019 (11DEC13) 50-30-24 021814

PN=188
Repair

5. Remove front boundary sensor circuit board.

IMPORTANT: Exercise care when removing or
installing ribbon cable connectors. Ensure
that connectors are properly aligned and
are moved only within alignment guides.
Connector contacts may be damaged or bent

MXT006532 —UN—29MAR13
if the connector is misaligned or twisted
during disassembly or assembly.

a. Remove connector (A).

b. Remove connectors (B).
c. Remove screws (C) and retainers securing circuit
board. Remove circuit board.

A—Connector, Ribbon Wire C—TORX® Screw (3 used)

Harness
B—Connector, Lift Sensor Wire
Harness

TORX is a trademark of Camcar/Textron

SW00544,00001E6 -19-12APR13-3/4

6. Remove rear boundary sensor.

a. Remove connector (D).
b. Remove screws (E) retaining circuit board. Remove
circuit board.

D—Connector, Ribbon Wire E—TORX® Screw (2 used)

Harness

MXT006534 —UN—29MAR13
TORX is a trademark of Camcar/Textron
SW00544,00001E6 -19-12APR13-4/4

TM115019 (11DEC13) 50-30-25 021814

PN=189
Repair

Install Boundary Sensor - Model Year 2013

(SN 1SA1312 and 1SA1318)
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).

MXT006537 —UN—29MAR13
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact A—Circuit Board, Front D—Connector, Lift Sensor (2
the charge station plates. Boundary Sensor used)
B—Retainer (3 used) E—Connector, Ribbon Wire
Safe handling of electronic compo- C—TORX® Screw (3 used) Harness
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components IMPORTANT: Exercise care when removing or
• Use of protective equipment, such as installing ribbon cable connectors. Ensure
grounding devices and non-synthetic clothing that connectors are properly aligned and
are moved only within alignment guides.
1. Install front boundary sensor circuit board. Connector contacts may be damaged or bent
if the connector is misaligned or twisted
a. Install circuit board (A) to mower housing alignment during disassembly or assembly.
guides.
b. Install retainers (B) over circuit board. d. Install lift sensor wire harness connectors (D) to
circuit board sockets.
c. Secure retainers and circuit board with screws (C).
Tighten screws to specification. e. Install ribbon wire harness connector (E) to circuit
board socket.
Specification
—Torque................................................................................1.1±0.2 N·m
(9.7±1.7 lb.-in.)
TORX is a trademark of Camcar/Textron
SW00544,00001E7 -19-12APR13-1/2

2. Install rear boundary sensor.

a. Install boundary sensor circuit board over alignment
post (F).
b. Secure circuit board with screws (G).
c. Align and install ribbon wire harness (H) to sensor
socket.
MXT006538 —UN—29MAR13

3. Install cover. See Install Cover).

F— Post, Alignment H—Connector, Ribbon Wire

G—TORX® Screw (2 used) Harness

TORX is a trademark of Camcar/Textron

SW00544,00001E7 -19-12APR13-2/2

TM115019 (11DEC13) 50-30-26 021814

PN=190
Repair

Remove Lift Sensor

Lift sensors detect vertical movement of the front wheel
spindles, indicating that a front wheel has dropped into
a depression or that the front of the machine has been
lifted. The sensors are located inside the double wall
frame behind the front wheel spindles.

MXT002009 —UN—12JAN12
Magnets are secured to the front wheel spindles outside of
the inner frame wall next to the lift sensors. The magnets
switch the lift sensors with vertical movement of the front
wheel spindle.
1. If an F-01 fault (Mower Lifted) or F-27 fault (Lift Sensor
Fault) message appears at the user interface screen,
check front wheel caster and lift sensor components.
2. Push stop button (A).
5. If it is suspected that there may be moisture inside
3. If indication does not change, check to see that caster mower housing, do not tilt mower to remove cover.
spindles slide freely in spindle bushings. Clean or Remove cover with mower in an upright position. See
replace caster wheel assembly or bushing as required. Moisture Inside Mower Housing).
(See Remove Front Wheel.)
6. If spindles move freely, check alignment of spindle
4. Recheck lift sensor function. mounted magnets. (See Install Lift Sensor.)

IMPORTANT: Avoid damage! Do not invert machine 7. Recheck lift sensor function.
to remove cover bolts. Damage to electronic
8. If sensor magnets are properly aligned, check sensor
components may result if moisture is present
wire harness connections. (See Install Lift Sensor.)
inside mower housing. Remove cover bolts and
cover with machine in an upright position. 9. Recheck lift sensor function.

IMPORTANT: Avoid Damage! Turn main switch 10. If connections are secure, replace sensor.
to OFF (O) position before opening mower
cover for internal checks. Immediately
separate battery wire harness connection
after opening mower cover.
Continued on next page SW00544,00001D0 -19-12APR13-1/2

TM115019 (11DEC13) 50-30-27 021814

PN=191
Repair

IMPORTANT: Exercise care when removing or

installing wire harness connectors. Ensure
that connectors are properly aligned and
are moved only within alignment guides.
Connector contacts may be damaged or bent
if the connector is misaligned or twisted

MXT002134 —UN—11JAN12
during disassembly or assembly.

11. Carefully remove ribbon cable connector (C) from

circuit board.
12. Remove screw (D) and washer securing sensor.
Remove sensor.

C—Connector D—TORX® Screw Lift Sensor - Model Year 2012

MXT006539 —UN—29MAR13
Lift Sensor - Model Year 2013

TORX is a trademark of Camcar/Textron

SW00544,00001D0 -19-12APR13-2/2

TM115019 (11DEC13) 50-30-28 021814

PN=192
Repair

Install Lift Sensor

IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).

MXT002135 —UN—11JAN12
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep Lift Sensor Install - Model Year 2012
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components

MXT006540 —UN—29MAR13
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

1. Install lift sensor (A). Ensure that sensor is installed

within double wall frame guides (B).
2. Secure sensor with washer and screw (C). Tighten
screw to specification. Lift Sensor Install - Model Year 2013
Specification
Lift Sensor A—Sensor C—TORX® Screw
Screw—Torque......................................................................1.1±0.2 N·m B—Guides D—Connector
(9.7±1.7 lb.-in.)

IMPORTANT: Exercise care when removing or 3. Align ribbon cable connector (D) to socket. Press
installing ribbon cable connectors. Ensure connector straight into socket until retainers lock in
that connectors are properly aligned and place.
are moved only within alignment guides.
Connector contacts may be damaged or bent 4. Install cover. (See Install Cover.)
if the connector is misaligned or twisted
during disassembly or assembly. 5. Recheck lift sensor function.

TORX is a trademark of Camcar/Textron

SW00544,00001D1 -19-12APR13-1/1

TM115019 (11DEC13) 50-30-29 021814

PN=193
Repair

Remove Rear Handle Sensor

1. Push stop button (A).
2. Turn main switch (B) to OFF (O) position.
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling

MXT002009 —UN—12JAN12
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-

MXT002010 —UN—06JAN12
nents requires:
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing

3. Remove cover. (See Remove Cover.)

4. After removing mower cover, immediately disconnect
battery connector from VCU wire harness. A—Stop button B—Main Switch

SW00544,00001D2 -19-12APR13-1/2

5. Remove tie wrap (C) securing sensor. Remove sensor

from handle.
6. Remove wire harness connector (D) from sensor.

MXT006653 —UN—15FEB13
7. Inspect housing wire harness seal (E) for damage.
Replace if needed.

C—Tie Wrap E—Seal

D—Connector

SW00544,00001D2 -19-12APR13-2/2

TM115019 (11DEC13) 50-30-30 021814

PN=194
Repair

Install Rear Handle Sensor

1. Install wire harness connector (A) to sensor.
2. Install sensor to slot in handle. Secure sensor with

MXT006654 —UN—15FEB13
tie wrap (B).
3. Ensure that housing wire harness seal (C) is in place
and in good condition.
4. Install cover. (See Install Cover.)

A—Connector C—Seal
B—Tie Wrap

SW00544,00001D3 -19-08FEB13-1/1

Remove VCU
The Vehicle Control Unit (VCU) controls the operating
functions of the machine. The VCU is located within the
double wall frame forward of the wheel motors.
1. Push stop button (A).

MXT002009 —UN—12JAN12
2. Turn main switch (B) to OFF (O) position.
3. If there is any reason to suspect that there may be
moisture inside the mower housing, check for moisture
before proceeding. (See Moisture Inside Mower
Housing).
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.

MXT002010 —UN—06JAN12
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact
the charge station plates.
Safe handling of electronic compo-
nents requires:
A—Stop button B—Main Switch
• Safe dissipation of built-up static charge
• Proper handling procedures for components
• Use of protective equipment, such as
grounding devices and non-synthetic clothing 5. Separate battery wire harness connector immediately
after removing cover.
4. Remove cover. (See Remove Cover.)
Continued on next page SW00544,00001D4 -19-12APR13-1/2

TM115019 (11DEC13) 50-30-31 021814

PN=195
Repair

6. Remove tie wrap (C) securing blade motor wire

harness to VCU mounting bracket.
7. Remove all wire harness connectors from VCU (D).
8. Remove screws (E) securing VCU mounting bracket

MXT002138 —UN—11JAN12
to machine.
9. Remove VCU.

C—Tie Wrap E—TORX® Screw (2 used)

D—VCU

TORX is a trademark of Camcar/Textron

SW00544,00001D4 -19-12APR13-2/2

Install VCU
IMPORTANT: Electronic components may be
damaged by improper handling. See (Handling
and Protection of Electronic Components)
and (Service Area Setup).

MXT002139 —UN—11JAN12
Electrostatic discharge across a component
sensitive to static electricity may result in
immediate failure or reduced service life.
If the mower is connected through a computer
to MowADVISOR, do not allow the mower to
contact the charge station plates.
If the mower battery is put in the sleep
mode, do not allow the mower to contact A—Bracket C—Tie Wrap
the charge station plates. B—TORX® Screw (2 used)

Safe handling of electronic compo-

nents requires: that connectors are properly aligned and
are moved only within alignment guides.
• Safe dissipation of built-up static charge Connector contacts may be damaged or bent
• Proper handling procedures for components if the connector is misaligned or twisted
• Use of protective equipment, such as during disassembly or assembly.
grounding devices and non-synthetic clothing
2. Install ribbon and wire harness to VCU connectors.
1. Position and secure VCU mounting bracket (A)
Ensure that connectors are secure.
to machine with screws (B). Tighten screws to
specification. 3. Secure blade motor wire harness to VCU bracket with
Specification new tie wrap (C).
VCU Screws—Torque...........................................................4.8±0.5 N·m 4. Install cover. (See Install Cover.)
(42.5±4.4 lb.-in.)

IMPORTANT: Exercise care when removing or

installing ribbon cable connectors. Ensure
TORX is a trademark of Camcar/Textron
SW00544,00001D5 -19-12APR13-1/1

VCU Repair
The mower VCU is not repairable.
SW00544,00001D6 -19-28MAR13-1/1

TM115019 (11DEC13) 50-30-32 021814

PN=196
Section 60
Seasonal Services
Contents

Page

Group 05—Post Season Services

Post Season Service (DTAC
Solution 93958 Nov 13 2012) .................... 60-05-1
Post Season Checks and
Procedures ................................................ 60-05-3

Group 10—Off Season Services

Off Season Service (DTAC Solution
96043 Jun 18 2013)................................... 60-10-1
Off Season Service and Storage
(Dealer Only) ............................................. 60-10-2

Group 15—Pre Season Services

Pre Season Checks (DTAC
Solution 93961 Nov 6 2012) ...................... 60-15-1
Pre Season Checks and
Procedures ................................................ 60-15-2
Safety Checks ............................................... 60-15-3

Group 20—Mower and Installation

Inspection Log
Inspection Log ............................................... 60-20-1

TM115019 (11DEC13) 60-1 021814

PN=1
Contents

TM115019 (11DEC13) 60-2 021814

PN=2
Group 05
Post Season Services
Post Season Service (DTAC Solution 93958
Nov 13 2012)
Complaint or Symptom
Checklist for off season service.
Problem or Situation

MXT006656 —UN—15FEB13
Winter Service required
Solution: Prepare the dealership for autonomous
winter storage
1. Prepare storage area (need of racks? 10 degrees
C/50 degrees F. 0 to 85% humidity).
2. Plan special offers for winter service (pick up mower,
clean, review hardware, install new blade).
3. Inform customers early to store mowers in winter. A—Diagnostic Port Cover
4. Read DTAC solutions / information on dealer net to
be up to date.
5. Retrieve new MowADVISOR and mower software as season and at the beginning of the following mowing
available. season for any changes to resistance.
6. Service cable required for new software: • Inspect the charging decal is securely in place and the
- Model Year 2012 - Service Dongle & USB A to B wires to the charging station are in good condition. Wrap
cable JDG11315 the boundary wire and guide loop to reduce corrosion.
- Model Year 2013 - USB A to A cable JDG11590
Mower Inspection (only the dealer should complete
Charging Station and Mower Inspection these)
1. Remove diagnostic port cover (A). • Open mower to check for moisture. If only a small
2. Connect to MowADVISOR to store programming amount of moisture is present, dry out by allowing the
settings (schedule, launch point, clean up pass, etc.). mower to sit open. Complete safety checks. (See
(See MowADVISOR System Check.) Safety Checks.)
3. Record the height of cut from the mower. • If a large amount of moisture is inside the inner wall,
4. Remove the mower from the charging station. follow DTAC Solution 93254 (or DealerNet Solution).
5. Discharge the battery state of charge to 40-60 percent • Remove the blade and blade shield. Make sure the
by mowing or using the power system test fan. blade motor bearing is clean and dry (do not use water).
6. Use the Utilities Menu to put the mower in Mower No clippings should be present.
Storage mode. Check to be sure the Main power • Lower the height of cut. Open the mower. Lightly coat
switch is moved to the OFF position. the exposed threads of the height of cut assembly
7. Clean the mower and the charging station without threads (black) with grease. Store with the height of cut
water. at the maximum position.
Charge Station Inspection
• Check to make sure the rear wheels are tight. (See
DTAC Solution 96043.)
• Check the continuity of the boundary and guide loop
wires with a multi meter at the end of each mowing
Continued on next page SW00544,000000B -19-19AUG13-1/2

TM115019 (11DEC13) 60-05-1 021814

PN=199
Post Season Services

• Inspect bushing (B) in the frame that the caster wheel

moves up and down in. If there is any movement side to
side in the bushing, remove the caster wheel and rotate
the bushing one notch (120 degrees) (remove the snap
ring, remove the caster wheel, remove the snap ring on
top of the bushing).
• Ensure the service cap (C) is securely in place.
• Check the condition of the main perimeter seal to

MXT008048 —UN—16AUG13
ensure it’s not folded over.
• Check the grommets that the power switch and service
port harnesses are properly inserted, not folded or
pinched.
• Clean the handle sensor with a soft cloth (no water).
Remove any debris or cobwebs.
Store mower, charging station, and power supply
components in a dry, dust free area out of the reach of
children. The power supply connector will corrode if left
exposed to the environment. Make sure the mower is B—Caster Spindle Bushing
not keeping pressure against the charging station plates.
The mower should be stored on the wheels. Do not store
anything on top of the mower. To reduce scratches, place
the protective cover over the mower that came in the
original packaging. Follow the storage requirements as
applicable from the operator’s manual from battery sheet.

C—Diagnostic Port Cover

MXT008049 —UN—16AUG13
SW00544,000000B -19-19AUG13-2/2

TM115019 (11DEC13) 60-05-2 021814

PN=200
Post Season Services

Post Season Checks and Procedures

Post season checks and procedures should be carried
out for the mower and guidance systems. These
measures will help to provide for maximum life of system
components as well as to ensure that the mowing system
is prepared for the following mowing season. Performing

MXT002140 —UN—11JAN12
post season checks and procedures will ensure that the
mower is properly prepared for off season storage.
At any time the mower is serviced, an operational check of
the main power switch should be performed. The switch
should be operated through 10 on/off cycles, checking for
proper mechanical and electrical operation of the switch.
If any abnormality is seen, the switch should be replaced.
1. Connect mower to MowADVISOR to store
programmed settings (schedule, launch points, clean A—Charge Level B—Menu Button
up pass, etc.)
IMPORTANT: Avoid Damage! If it is suspected
that there may be moisture inside the mower a. Check mower battery charge level (A). Charge (or
housing, carry the mower level until the cover discharge) battery as needed to bring battery to
can be opened for internal inspection. 40—60% charge.

2. Record mower height of cut setting. b. Press menu button (B) to display menu.

3. Put mower in storage mode.

,0000004 -19-16AUG13-1/6

c. Press down arrow (C) to scroll through main menu

to “Utilities” (D).
d. Press Enter (E) to open utilities menu.

C—Arrow E—Enter
D—Utilities

MXT002141 —UN—11JAN12
Continued on next page ,0000004 -19-16AUG13-2/6

TM115019 (11DEC13) 60-05-3 021814

PN=201
Post Season Services

e. Choose “Mower Storage” (F) and press “Enter”.

F— Mower Storage

MXT002142 —UN—11JAN12
,0000004 -19-16AUG13-3/6

f. Undock mower from charge station.

g. Press return button to exit menu.

MXT002143 —UN—11JAN12
Continued on next page ,0000004 -19-16AUG13-4/6

TM115019 (11DEC13) 60-05-4 021814

PN=202
Post Season Services

h. Turn main switch (G) to OFF (O) position. “Sleep

Mode” message appears.

G—Main Switch

MXT002144 —UN—11JAN12
MXT002145 —UN—11JAN12
Continued on next page ,0000004 -19-16AUG13-5/6

TM115019 (11DEC13) 60-05-5 021814

PN=203
Post Season Services

IMPORTANT: Avoid Damage! The mower battery

should not be charged while in storage.
The charge station should not be plugged
in during seasonal storage.

4. Disconnect charging station power supply from outlet.

5. Inspect and service charging station.

MXT008046 —UN—16AUG13
a. Mark and disconnect guide loop connectors from
charging station terminals (H).
b. Mark and disconnect boundary wire connectors
from charging station terminals (I).
NOTE: If resistance across loop is greater than 10 ohms,
investigate the cause and make repairs.

c. Check guide loop and boundary wire for continuity

with a multi meter. H—Guide Loop Terminals J— Power Supply Terminals
I— Boundary Wire Terminals K—Decal
d. Check guide loop and boundary wire resistance at
the end and beginning of mowing season. Record
values in seasonal inspection log. Investigate any h. Ensure that charging station decal (K) is securely in
changes in resistance and make necessary repairs. place and legible.
See Inspection Log).
IMPORTANT: Avoid Damage! Do not use water to
e. Ensure that guide loop and boundary wire clean the mower or charging station. Damage
conductors and connectors at charging station are may result from water entering the housing.
in good condition.
f. Remove power supply connector from charging 6. Clean mower and charging station with a brush or dry
station terminals (J). cloth. Do not use water.

g. Apply dielectric grease to charging station power

supply, boundary wire, and guide loop terminals.
,0000004 -19-16AUG13-6/6

TM115019 (11DEC13) 60-05-6 021814

PN=204
Group 10
Off Season Services
Off Season Service (DTAC Solution 96043
Jun 18 2013)
Complaint or Symptom
The rear wheel is loose and causing noise (clicking).
Problem or Solution

MXT008050 —UN—16AUG13
The proper torque and clamp was not created during
manufacturing.
Solution
Repair: For each wheel add an additional 2 washers (part
number SAU13411) to each inside of the rear wheel.
There will be 3 washers on each side for a total of 6
washers. Torque the wheel nut to 14 N·m (124 lb.-in.).
Replacement: If rear wheel (A) moves more than 6 A—Rear Drive Wheel
mm (0.24 in.) back and forth without moving the wheel
motor shaft order a new wheel from EPDC (part number
SAA10924). Install 3 washers (part number SAU13411) to
the inside of each wheel and torque to 14 N·m (124 lb.-in.).
SW00544,0000017 -19-19AUG13-1/1

TM115019 (11DEC13) 60-10-1 021814

PN=205
Off Season Services

Off Season Service and Storage (Dealer Only)

Dealer inspection and service of the mower will ensure
that critical software updates and necessary service
issues are addressed.
At the end of the mowing season, the mower, along with
the charging station and its power supply should be stored

MXT006656 —UN—15FEB13
in a dry, dust free environment out of the reach of children.
Proper storage will ensure that the mower is ready for use
in the next mowing season.
The mower should be stored on its wheels. The protective
cover that came in the original packaging, or a similar soft
cover, should be used to protect the mower. Do not store
anything on top of the mower. The mower should not be
stored in contact with the charging station plates.
A—Cover
IMPORTANT: Avoid Damage! Handle and transport
the mower horizontally if there is any reason
to suspect that there may be moisture within
the mower housing. Remove the mower cover d. Connect USB cable to computer.
and inspect for moisture before turning the
mower from a horizontal position. Immediately e. Store programming settings.
separate the battery wiring harness connector f. Remove connector cable from computer and then
after opening the mower cover. from mower.
1. Open mower housing to inspect for moisture presence. g. Install cover to mower diagnostic port. Ensure that
cap is securely in place.
a. If only a small amount of moisture is present, leave
the cover off to allow the mower to dry. NOTE: If a small amount of moisture is found inside the
mower housing, leave the cover off to allow the
b. If a large amount of moisture is present inside the moisture to dry. If a large amount of moisture is
inner mower housing wall, follow DTAC solution present within the mower housing inner wall, follow
93254 (or DealerNet solution). DTAC Solution 93254 (or DealerNet solution 93254).
2. Ensure that no corrosion is present on internal
connectors. 5. Open mower cover to inspect for moisture (Immediately
separate battery wire harness connector). Allow any
3. Ensure that power supply connectors are protected moisture present to dry before continuing service.
against moisture to prevent corrosion.
6. Record the mower height of cut.
4. Record mower operating settings (schedule, launch
point(s), cleanup pass, etc.) to a computer with CAUTION: Avoid Injury! Rotating blades are
MowADVISOR software installed. dangerous. Before adjusting or servicing
a. Remove cover (A) at mower diagnostic port. mower, push down on STOP button and push
main switch to OFF position. Confirm user
IMPORTANT: Avoid Damage! Install the MowADVISOR interface and all LED’s are off. Always wear
connector cable to the mower port before gloves when working near blades.
connection to the computer. Connection in this
order is necessary to protect the computer from 7. Remove mower blade and blade shield. (See Remove
possible electrical grounding feedback. Blade and Remove Blade Shield).

b. Install connector cable JDG11355 (for MY2012 8. Ensure that blade motor bearing is clean and dry, with
mowers) or A to A USB cable JDG11590 (for no grass clippings present.
MY2013 mowers) to mower connection port. 9. Install blade shield. See Install Blade Shield).
c. Connect cable JDG11355 to computer A to B USB 10. Adjust height of cut to lowest setting.
cable.
Continued on next page SW00544,0000006 -19-16AUG13-1/7

TM115019 (11DEC13) 60-10-2 021814

PN=206
Off Season Services

11. Lightly coat internal exposed (black) threads (B) of

height of cut adjuster with grease.
12. Adjust height of cut to highest setting.

B—HOC Threads

MXT006657 —UN—15FEB13
SW00544,0000006 -19-16AUG13-2/7

13. Ensure that left and right drive wheel axle nuts (C) are
tightened to specification. (See DTAC Solution 96043.)
Specification
Drive Wheel Axle
Nut—Torque...........................................................................14±0.5 N·m
(124±4 lb.-in.)

MXT006658 —UN—15FEB13
C—Drive Wheel Hex Nut

SW00544,0000006 -19-16AUG13-3/7

14. Clean and inspect front caster assemblies.

15. Check for side to side play of front caster spindle in
bushing (D).
16. If spindle play exists, replace bushing.
a. Remove caster assembly and bushing from mower
housing. (See Remove Front Wheel).
MXT006542 —UN—29MAR13

D—Bushing, Caster Spindle

Continued on next page SW00544,0000006 -19-16AUG13-4/7

TM115019 (11DEC13) 60-10-3 021814

PN=207
Off Season Services

b. Remove any dirt or debris from spindle (E) and

spindle bushing.
c. Replace O-ring (F) or bushing if worn.
d. Replace damper (G) for model year 2013 machines

MXT006545 —UN—29MAR13
(SN 1SA1312 and 1SA1318).
e. Inspect seal (H) for model year 2013 machines (SN
1SA1312 and 1SA1318). Replace bushing (I) if seal
is worn or damaged.
f. Reassemble and install caster assemblies. (See
Install Front Wheel.)

E—Caster Spindle H—Seal

F— O-ring I— Bushing
G—Damper

SW00544,0000006 -19-16AUG13-5/7

17. Ensure that housing perimeter seal (J) and wire

harness seals (K) are in place, in good condition, and
not distorted.

J— Perimeter Seal K—Wiring Harness Seal

MXT006684 —UN—12APR13
Continued on next page SW00544,0000006 -19-16AUG13-6/7

TM115019 (11DEC13) 60-10-4 021814

PN=208
Off Season Services

18. Clean handle sensor (L) with soft cloth. Do not use
water. Remove any debris from area around handle
sensor.
19. Install and secure mower cover. (See Install Cover).
20. Install available front bumper (for MY12 models) if

MXT008047 —UN—16AUG13
the user desires the faster mowing speed of a MY13
mower.
a. Install bumper to mower. See bumper installation
instruction for installation details.
b. Store bumper serial number to mower operating
system.
c. Download new wheel motor speed software to allow
higher ground speed.
L— Handle Sensor
IMPORTANT: Avoid Damage! Do not clean the mower
or charging station with water.
IMPORTANT: Avoid Damage! Do not store the mower
21. Clean the mower and charging station external in contact with charging station.
surfaces with a soft cloth.
22. Store the mower in a cool, dry environment, with a 23. Store the mower on its wheels, with a soft cover over
temperature of 10 degrees C (50 degrees F) and the mower.
humidity of 0 to 85%.
SW00544,0000006 -19-16AUG13-7/7

TM115019 (11DEC13) 60-10-5 021814

PN=209
Off Season Services

TM115019 (11DEC13) 60-10-6 021814

PN=210
Group 15
Pre Season Services
Pre Season Checks (DTAC Solution 93961 not good contact, pull the charging contacts out of the
Nov 6 2012) pocket. Bend the plate to increase the angle. Place
the charging station plats back into the pocket of the
Complaint or Symptom: charge station.
Need to know what pre season (after removing from 5. Deliver the mower to the customer.
storage) checks should be completed. a. If the grass is higher than desired maintained
height, mow the yard.
Problem or Situation: b. Charging station:
check continuity of the boundary wire and guide
Mower checks before spring mowing. loop.
Solution: check corrosion of the boundary wire and guide
loop connectors. If corroded, attached a new
1. Install a new blade. connector to the wire.
2. Update software using MowADVISOR. (make sure to Install charging station.
plug the service cable into the mower first and then the Install the guide loop into the charge station pad
computer, do not move the mower, cable, or computer channels. Reinstall if needed. The guide loop must
during programming) be flat and parallel to ensure reliable docking before
a. Set date and time on the mower. staking in place.
b. Update software using MowADVISOR. (make sure c. Set height of cut to grass maintenance height
to plug the service cable into the mower first and d. Set the active schedule.
then the computer, do not move the mower, cable, 6. Complete safety checks (stop, handle sensor, lift, tilt).
or computer during programming) (See “Safety Checks”.)
c. Ensure the schedule meets the demands of the 7. Test the installation (as shown in the installation
grass growth. manual).
3. Print out MowADVISOR activities proving that all 8. Discuss the following with the customer.
sensors are good and that the mower received the new a. Review the safety aspects.
software. (for only tests run print out, use the “auto b. Explain the mower features.
test”. For all activities completed, open the log file on c. New software and associated features and benefits.
the mower in the C:/ProgramFiles/MowADVISOR/Log d. If the mower had a bumper added and new casters
and print.) discuss the benefits, including the higher speed.
4. Set the mower against the charging station contacts. e. Provide new operator’s manual (either in paper
Ensure good contact between the charging station form or provide link to customer) if new software
contacts and the charging station plates. If there is was installed.
SW00544,0000007 -19-19AUG13-1/1

TM115019 (11DEC13) 60-15-1 021814

PN=211
Pre Season Services

Pre Season Checks and Procedures

Pre season checks and procedures should be carried
out for the mower and guidance systems. These
measures will help to provide for maximum life of system
components as well as to ensure that the mowing system
is prepared for the mowing season.

MXT006656 —UN—15FEB13
Copy the seasonal inspection log sheet to record
performance data from post and pre season inspection in
order to track performance. Tracking performance will
assist in predicting future service requirements.
1. Remove port cover (A).
IMPORTANT: Avoid Damage! Install the MowADVISOR
connector cable to the mower port before
connection to the computer. Connection in this A—Port Cover
order is necessary to protect the computer from
possible electrical grounding feedback.

2. Connect the mower to a computer with MowADVISOR c. Reinstall contact in charging station pocket.
software installed. (See Programming.)
CAUTION: Avoid Injury! Rotating blades are
3. Update mower software using MowADVISOR. Do
dangerous. Before adjusting or servicing
not move the mower, connecting cable, or computer
mower, push down on STOP button and push
during programming.
main switch to OFF position. Confirm user
4. Print out MowADVISOR activities showing that all interface and all LED’s are off. Always wear
sensors are good and that the mower received new gloves when working near blades.
software. (For only tests run print out, use the “auto
test”. For all activities completed, open the log file on 13. Install new mower blade.
the mower in the C:/ProgramFiles/MowADVISOR/Log
14. Charge mower battery.
and print.)
15. Deliver mower.
5. Set mower date and time.
16. Check guide loop and boundary wire condition.
6. Install cover to mower port after programming updates.
a. Check for corrosion at guide loop and boundary
7. Whenever the mower is serviced, perform an
wire connectors. Replace connector(s) if needed.
operational check of the main power switch. Operate
the switch through 10 on/off cycles, ensuring that b. Check continuity in guide loop and boundary wire.
the switch functions correctly and smoothly. If any Make repairs as needed.
abnormality is observed, replace the switch.
c. Measure resistance across wire ends. Record
8. Check mower settings against recorded settings. values in seasonal inspection log.
9. Ensure that mowing schedule settings meet demands d. Compare measured resistance to post season
of early season growth. recorded value to check for changes.
10. Set mowing height of cut to recorded preference. e. If wire resistance is greater than 10 ohms maximum
value, investigate cause and make repairs.
11. Set mower straight into charging station against
charging station contacts to check contact pressure. NOTE: The guide loop must be installed flat and parallel
in front of and under the charging station pad.
12. If pressure between mower and charging station
contacts is not equal, adjust charging station contact
17. Install guide loop into charging station pad channels.
position.
18. Install charging station.
a. Remove charging station contact from pocket.
19. Install stakes securing charge station pad.
b. Reshape contact to provide increased pressure.
Continued on next page SW00544,0000008 -19-19AUG13-1/2

TM115019 (11DEC13) 60-15-2 021814

PN=212
Pre Season Services

20. Install guide loop connectors to charging station inner

terminals (B).
21. Install boundary wire connectors to charging station
outer terminals (C).
22. Install power supply in an indoor location and connect
to a powered GFCI outlet.

MXT008051 —UN—19AUG13
23. Connect power supply to charge station terminals (D).
24. Check boundary sensor polarity.
25. Check guidance system and mower battery values.
Record values in seasonal inspection log. See
Inspection Log).
26. Cut grass to maintenance height with a conventional
mower.
27. Confirm and set mowing schedule. B—Guide Loop Terminals D—Power Supply Terminals
C—Boundary Wire Terminals
28. Complete safety checks (stop, handle sensor, lift, tilt),
and give details for new features.
29. Test the installation. d. Provide updated operator’s manual (in paper form
or provide link to online publication) if new software
30. Discuss mower operation and features with user. was installed.
a. Explain mower operation, especially new features. 31. Review safety considerations with user.
b. Explain new mower and operating software.
c. If the mower has had a bumper and new design
casters installed, discuss benefits and higher
mowing speed.
SW00544,0000008 -19-19AUG13-2/2

Safety Checks
Ensure that the user has read the operator’s manual and
is completely familiar with the operation of the machine
before performing safety system checks. Use the following
checkout procedures to check for normal operation of the
machine. If there is a malfunction during one of these

MXT002106 —UN—11JAN12
procedures, do not operate the machine. Perform these
tests in a clear open area. Keep bystanders away.
1. Test stop button function.
a. Push main power switch (A) to OFF (O) position.
b. Position mower within boundary wire area.
c. Push main power switch to ON (I) position.
d. Start mower operation in Mow Now Mode. A—Main Power Switch

Continued on next page SW00544,0000009 -19-19AUG13-1/3

TM115019 (11DEC13) 60-15-3 021814

PN=213
Pre Season Services

e. When the mower starts moving, push down on the

STOP button (B).
f. Result: Mower and mower blade will stop. Run LED
will be flashing green.
2. Test handle presence function.

MXT008045 —UN—16AUG13
a. Push main power switch to OFF (O) position.
b. Position mower within boundary area.
c. Push main power switch to ON (I) position.
d. Start mower operation in Mow Now Mode.
e. After the mower is moving and the blade starts,
grasp the handle (C) for at least 5 seconds.
f. Result: The mower and mower blade will stop. B—Stop Button C—Handle
The user interface display will show fault code
information. The Run LED will be solid red.
SW00544,0000009 -19-19AUG13-2/3

CAUTION: Avoid Injury! Rotating blades are

dangerous. Do not look under mower or put
hands under mower to view blade rotation.
Listen for blades to stop.

NOTE: The mower will initially try to move away

MXT008052 —UN—19AUG13
when lifted.

3. Lift sensor function.

a. Push main power switch to OFF (O) position.
b. Position mower within boundary area.
c. Push main power switch to ON (I) position.
d. Start mower operation in Mow Now Mode.
D—Mower Housing, Front E—Mower Housing, Lower
e. After mower is moving and blade starts, lift front of Edge
mower housing (D) so that front casters are lifted
free from surface for more than 3 seconds. (Do not
lift mower by lower edges (E) of mower housing.)
f. Result: Mower and mower blade will stop. The user
interface display will show fault code information,
The Run LED will be solid red.
SW00544,0000009 -19-19AUG13-3/3

TM115019 (11DEC13) 60-15-4 021814

PN=214
Group 20
Mower and Installation Inspection Log
Inspection Log
Date Battery Voltage Battery Current Temp Boundary Wire Guide Loop Operating Mowing Hours
Resistance resistance Hours

SW00544,000000C -19-29JUL13-1/1

TM115019 (11DEC13) 60-20-1 021814

PN=215
Mower and Installation Inspection Log

TM115019 (11DEC13) 60-20-2 021814

PN=216
Index
Page
Page
A
Drive components
Autonomous control Model year 2012 (SN 1SA1112 and
Theory of operation............................................ 50-15-1 1SA1118) ...................................................... 40-05-1
Model year 2013 (SN 1SA1312 and
B 1SA1318)...................................................... 40-05-2
Mower ..................................................30-05-1, 50-10-3
Battery Mower, model year 2012 (SN 1SA1112
Install................................................................ 50-30-20 and 1SA1118)................................................... 50-10-1
Remove............................................................ 50-30-19 Mower, model year 2013 (SN 1SA1312
Battery and charge circuit test ............................. 50-25-18 and 1SA1318) .................................................. 50-10-2
Battery Handling, Safety Control panel, install ............................................ 50-30-18
Safety, Battery Handling .................................... 10-05-3 Control panel, remove ......................................... 50-30-17
Battery safety......................................................... 50-25-3 Correct handling of equipment .............................. 10-20-1
Blade Cover, install ........................................................ 50-30-15
Install.................................................................. 30-25-3 Cover, remove ..................................................... 50-30-13
Remove.............................................................. 30-25-2 Cutting height adjuster
Blade motor Install................................................................ 30-25-10
Install.................................................................. 30-25-6 Remove.............................................................. 30-25-8
Remove.............................................................. 30-25-5 Cutting height, adjust............................................. 30-20-2
Repair .............................................................. 50-30-13
Blade motor calibration........................................ 50-25-24 D
Blade shield
Install................................................................ 30-25-13 Dealer Technical Assistance Center
Remove............................................................ 30-25-12 (DTAC)............................................................... 50-25-47
Blink code .............................................................. 50-30-5 Diagnosis
Boundary sensor Fault codes ........................................................ 20-05-4
Install Warning codes ................................................. 20-05-14
Model year 2012 (SN 1SA1112 and Diagnostics
1SA1118) .................................................... 50-30-23 Navigation diagnostics ....................................... 20-10-5
Model year 2013 (SN 1SA1312 and Dissipating built-up static charge........................... 10-20-1
1SA1318).................................................... 50-30-26 Drive system
Remove Tests and adjustments
Model year 2012 (SN 1SA1112 and Drive wheel free play...................................... 40-15-1
1SA1118) .................................................... 50-30-21 Drive wheel free play
Model year 2013 (SN 1SA1312 and Tests and adjustments
1SA1318).................................................... 50-30-24 Drive system................................................... 40-15-1
Theory of operation............................................ 50-15-1 DTAC Solution 93958
Boundary sensor test........................................... 50-25-27 Post season service
Boundary wire repair ............................................. 50-30-6 Seasonal services .......................................... 60-05-1
DTAC Solution 93961
C Pre season checks
Seasonal services .......................................... 60-15-1
Charge station DTAC Solution 96043
Components.........................................50-10-3, 50-10-4 Off season service
Guide loop repair ............................................... 50-30-7 Seasonal services .......................................... 60-10-1
Repair .............................................................. 50-30-10
Wire harness E
Model year 2012 (SN 1SA1112 and
1SA1118) ...................................................... 50-05-9 Electrical
Model year 2013 (SN 1SA1312 and Battery tests ....................................................... 50-25-3
1SA1318).................................................... 50-05-10 Sensor ribbon harness
Charge Station Model year 2012 (SN 1SA1112 and
Theory of operation............................................ 50-15-1 1SA1118) ...................................................... 50-05-1
Component location Model year 2013 (SN 1SA1312 and
Charge station.................................................... 50-10-4 1SA1318)...................................................... 50-05-2

Continued on next page

TM115019 (11DEC13) Index-1 021814

PN=1
Index

Page Page

User interface system and service Theory of operation............................................ 50-15-2

access .............................................................. 50-25-4
Wire harness N
Model year 2013 (SN 1SA1312 and
1SA1318)...................................................... 50-05-6 Navigation
Wire harness, charge station Diagnostics ........................................................ 20-10-5
Model year 2012 (SN 1SA1112 and
1SA1118) ...................................................... 50-05-9 O
Model year 2013 (SN 1SA1312 and
1SA1318).................................................... 50-05-10 Operation and diagnosis
Wire harness, cover Theory of operation............................................ 50-15-3
Model year 2013 (SN 1SA1312 and
1SA1318)...................................................... 50-05-8
Wire Harness, cover P
Model year 2012 (SN 1SA1112 and
1SA1118) ...................................................... 50-05-7 Power supply
Wire Harness, front Theory of operation............................................ 50-15-2
Model year 2012 (SN 1SA1112 and Product identification number (PIN)....................... 10-25-1
1SA1118) ...................................................... 50-05-3 Programming ....................................................... 50-25-44
Wire Harness, rear
Model year 2012 (SN 1SA1112 and R
1SA1118) ...................................................... 50-05-4
Electronic components Rear handle sensor
Handling and protection ..................................... 10-20-1 Install................................................................ 50-30-31
Remove............................................................ 50-30-30
Theory of operation............................................ 50-15-2
F Rear handle sensor test ...................................... 50-25-22
Reducing static electricity generation .................... 10-20-1
Fault codes ............................................................ 20-05-4
Repair
Fault display
Battery, install................................................... 50-30-20
Theory of operation............................................ 20-05-2
Battery, remove................................................ 50-30-19
Blade motor...................................................... 50-30-13
G Blade motor, install............................................. 30-25-6
Blade motor, remove.......................................... 30-25-5
Garden control mode........................................... 50-25-17 Blade shield, install .......................................... 30-25-13
Guidance system repair......................................... 50-30-5 Blade shield, remove ....................................... 30-25-12
Blade, install....................................................... 30-25-3
L Blade, remove.................................................... 30-25-2
Boundary sensor, install
Lift sensor Model year 2012 (SN 1SA1112 and
Install................................................................ 50-30-29 1SA1118) .................................................... 50-30-23
Remove............................................................ 50-30-27 Model year 2013 (SN 1SA1312 and
Theory of operation............................................ 50-15-1 1SA1318).................................................... 50-30-26
Lift sensor test ..................................................... 50-25-33 Boundary sensor, remove
Model year 2012 (SN 1SA1112 and
M 1SA1118) .................................................... 50-30-21
odel Year 2013 (SN 1SA1312 and
MowADVISOR 1SA1318).................................................... 50-30-24
Theory of operation............................................ 50-15-1 Boundary wire .................................................... 50-30-6
MowADVISOR system check .............................. 50-25-14 Charge station.................................................. 50-30-10
Mower Guide loop repair............................................ 50-30-7
Component location ........................................... 30-05-1 Control panel, install ........................................ 50-30-18
Mower components Control panel, remove...................................... 50-30-17
Model year 2012 (SN 1SA1112 and Cover, install .................................................... 50-30-15
1SA1118).......................................................... 50-10-1 Cover, remove.................................................. 50-30-13
Model year 2013 (SN 1SA1312 and Cutting height adjuster, install .......................... 30-25-10
1SA1318) ......................................................... 50-10-2 Cutting height adjuster, remove ......................... 30-25-8
Mower log ............................................................ 50-25-44 Guidance system repair ..................................... 50-30-5

Continued on next page

TM115019 (11DEC13) Index-2 021814

PN=2
Index

Page Page

Lift sensor, install ............................................. 50-30-29 User interface switch tests ............................... 50-25-39
Lift sensor, remove........................................... 50-30-27 User settings .................................................... 50-25-42
Rear handle sensor, install............................... 50-30-31 Wheel motor..................................................... 50-25-30
Rear handle sensor, remove............................ 50-30-30 Theory of operation
Safety precautions ............................................. 30-25-1 Autonomous control ........................................... 50-15-1
Service area setup ............................................. 50-30-4 Boundary sensor................................................ 50-15-1
Wheel motor..................................................... 50-30-13 Drive wheels ...................................................... 40-10-1
Wheel motor, install............................................ 40-20-5 Fault display....................................................... 20-05-2
Wheel motor, remove......................................... 40-20-3 Front wheels ...................................................... 40-10-1
Lift sensor .......................................................... 50-15-1
S Mow log.............................................................. 50-15-2
MowADVISOR ................................................... 50-15-1
Safety precautions...........................30-20-1, Operation and diagnosis ......................50-15-1, 50-15-3
40-20-2, 50-25-1, 50-30-2 power supply...................................................... 50-15-2
Repair ................................................................ 30-25-1 Rear handle sensor............................................ 50-15-2
Seasonal services Tilt sensor .......................................................... 50-15-2
Off season service User interface..................................................... 50-15-2
DTAC Solution 96043..................................... 60-10-1 Wheel motors..................................................... 40-10-1
Off season service and storage ......................... 60-10-2 Tilt sensor
Post season checks and procedures ................. 60-05-3 Calibration........................................................ 50-25-36
Post season service Test .................................................................. 50-25-35
DTAC Solution 93958..................................... 60-05-1 Theory of operation............................................ 50-15-2
Pre season checks
DTAC Solution 93961..................................... 60-15-1 U
Pre season checks and procedures................... 60-15-2
Pre season services User interace switch tests.................................... 50-25-39
Safety checks ................................................. 60-15-3 User interface
Sensor ribbon harness Theory of operation............................................ 50-15-2
Model year 2012 (SN 1SA1112 and User interface system and service
1SA1118).......................................................... 50-05-1 access.................................................................. 50-25-4
Model year 2013 (SN 1SA1312 and User settings........................................................ 50-25-42
1SA1318) ......................................................... 50-05-2 Using protective devices........................................ 10-20-2
Serial number
Charge station.................................................... 10-25-1 V
Product identification (PIN) ................................ 10-25-1
Vehicle control number (VCU) ........................... 10-25-1 Vehicle control number
Slope compensation ............................................ 50-25-43 VCU, install ...................................................... 50-30-32
Smart homing ...................................................... 50-25-43 VCU, remove ................................................... 50-30-31
Spiral mode operation ......................................... 50-25-43 VCU, repair ...................................................... 50-30-32

T W
Tests and adjustments Warning codes..................................................... 20-05-14
Battery and charge circuit test ......................... 50-25-18 Wheel motor
Battery tests ....................................................... 50-25-3 Install.................................................................. 40-20-5
Blade motor calibration .................................... 50-25-24 Remove.............................................................. 40-20-3
Boundary sensor test ....................................... 50-25-27 Repair .............................................................. 50-30-13
Cutting height..................................................... 30-20-2 Tests................................................................. 50-25-30
Garden control mode ....................................... 50-25-17 Wheel motor, front
Lift sensor test.................................................. 50-25-33 Install.................................................................. 40-20-9
Programming ................................................... 50-25-44 Remove.............................................................. 40-20-7
Rear handle sensor test................................... 50-25-22 Wire harness
Slope Compensation........................................ 50-25-43 Charge station
Smart homing................................................... 50-25-43 Model year 2012 (SN 1SA1112 and
Spiral mode...................................................... 50-25-43 1SA1118) ...................................................... 50-05-9
Tilt sensor calibration ....................................... 50-25-36 Model year 2013 - (SN 1SA1312 and
Tilt sensor test.................................................. 50-25-35 1SA1318).................................................... 50-05-10

Continued on next page

TM115019 (11DEC13) Index-3 021814

PN=3
Index

Page Page

Cover Model year 2013 (SN 1SA1312 and

Model year 2012 (SN 1SA1112 and 1SA1318) ......................................................... 50-05-6
1SA1118) ...................................................... 50-05-7 Rear
Model year 2013 (SN 1SA1312 and Model year 2012 (SN 1SA1112 and
1SA1318)...................................................... 50-05-8 1SA1118) ...................................................... 50-05-4
Front
Model year 2012 (SN 1SA1112 and
1SA1118) ...................................................... 50-05-3

TM115019 (11DEC13) Index-4 021814

PN=4
Index

TM115019 (11DEC13) Index-5 021814

PN=5
Index

TM115019 (11DEC13) Index-6 021814

PN=6