john deer Gator User manual

OPERATORS MANUAL
3 cu ft Gator Fertilizer Spreader
LP69910
Supplier ST50946
12/07/2020
English

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Introduction
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.
NOTE: Retain these installation instructions with
the machine operators manual.
Using Your Operator’s Manual
Read this entire operator’s manual, especially the safety
information, before operating.
This manual is an important part of your machine. Keep
all manuals in a convenient location so they can be
accessed easily.
Use the safety and operating information in the attachment
operator’s manual, along with the machine operator’s manual,
to operate and service the attachment safely and correctly.
If your attachment manual has a section titled Preparing
the Machine, it means that you will have to do something
to your tractor or vehicle before you can install the
attachment. The Assembly and Installation sections of
this manual provide information to assemble and install
the attachment to your tractor or vehicle. Use the Service
section to make any needed adjustments and routine
service to your attachment.
If you have any questions or concerns with the assembly,
installation, or operation of this attachment, see your
local John Deere dealer or call the John Deere Customer
Contact Center at 1-888-867-2238 for assistance.
Warranty information for this John Deere attachment can
be found in the warranty that came with your John Deere
tractor or vehicle.
Product Compatibility
This attachment is compatible with John Deere Gator™
Utility Vehicles. Contact your John Deere dealer for
specic utility vehicle compatibility information.
Table of Contents
Introduction 2
Product Identification 2
Safety Labels 3
Safety 5
Assembly 7
Installation 8
Operation 9
Maintenance 15
Removal & Storage 16
Troubleshooting 17
Wiring Diagram 22
Specifications 23
Getting Quality Service 24
Warranty 25

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Safety Labels
Safety Label Locations
Understanding The Machine Safety Labels
The machine safety labels shown in this
section are placed in important areas on your
machine to draw attention to potential safety
hazards. DANGER or WARNING safety labels
are located near specic hazards.
The operator’s manual also explains any potential safety
hazards whenever necessary in special safety messages
that are identied with the word, CAUTION, and the
safety-alert symbol.
On your machine safety labels, the words DANGER,
WARNING, and CAUTION are used with this safety-alert
symbol. DANGER identies the most serious hazards:
• DANGER; The signal word DANGER indicates a
hazardous situation which, if not avoided, will result in
death or serious injury.
• WARNING; The signal word WARNING indicates a
hazardous situation which, if not avoided, will result in
death or serious injury.
• CAUTION; The signal word CAUTION indicates a
hazardous situation which, if not avoided, could result
in minor or moderate injury. CAUTION may also be
used to alert against practices associated with events
which could lead to personal injury.
Replace missing or damaged safety labels. Use this
operator’s manual for correct safety label placement.
There can be more safety information contained on parts
and components sourced from suppliers that is not
reproduced in this operator’s manual.
French or Spanish Safety Labels and Operator’s
Manual
Operator’s manuals and safety labels with content in
French or Spanish are available for this machine through
authorized John Deere dealers. See your John Deere
dealer.
NOTE: Both text and no-text labels are shown. Your
machine is only equipped with one of these types of
labels.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Safety Labels
WARNING
AVOID INJURY FROM MOVING PARTS
• Keep hands, feet and clothing away
• Disconnect power before servicing
CAUTION
AVOID INJURY AND READ OPERATOR MANUAL
BEFORE USE
• Never remove spreader with material in hopper
• Maximum weight capacity 240 lb.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Safety
Read Safety in Machine Operator’s Manual
Read the general safety operating precautions in your
machine operator’s manual.
Operating Safety
• Read the machine and attachment operator’s manual
carefully. Be thoroughly familiar with the controls and
the proper use of the equipment. Know how to stop the
machine and disengage the controls quickly.
• This attachment is intended for use in property
maintenance applications. Do not use for use other
than intended by the manufacturer. Do not modify
machine or safety devices. Unauthorized modifications
to the machine or attachment may impair its function
and safety.
• Do not let children or an untrained person operate
machine.
• Make any necessary adjustments before you operate.
Never attempt to make any adjustments while the
engine is running, unless it is recommended in
adjustment procedure.
• Look behind machine before you back up. Back up
carefully.
• Never carry passengers, especially children, on
machine or attachment. Riders are subject to injury
such as being struck by foreign objects and being
thrown off. Riders may also obstruct the operator’s
view, resulting in the machine being operated in an
unsafe manner.
• Disengage any power to the attachment when the
machine is transported or not in use.
• Never exceed 15 mph when loaded spreader is
attached to vehicle. Braking distances may be
increased and handling characteristics may be
impaired at speeds above 15 mph.
• Never use wet materials or materials with foreign
debris in the spreader. This unit is designed to spread
dry, clean, free-flowing material.
• Never leave material in hopper when not in use.
• Weight of mounted machines, including their loads, can
influence vehicle maneuverability. Refer to vehicle OM
for ballasting.
Practice Safe Maintenance
• Only qualied, trained adults should service this
machine.
• Understand service procedure before doing work.
Keep area clean and dry.
• Do not operate the engine in a conned space where
dangerous carbon monoxide fumes can collect.
• Never lubricate, service or adjust the machine or
attachment while it is moving. Keep safety devices in
place and in working condition. Keep hardware tight.
• Keep hands, feet, clothing, jewelry, and long hair
away from any moving parts, to prevent them from
getting caught.
• Lower any attachment completely to the ground or
to an existing attachment mechanical stop before
servicing the attachment. Disengage all power and
stop the engine. Lock park brake and remove the key.
Let machine cool.
• Disconnect the negative battery cable(s) before
making any repairs.
• Before servicing machine or attachment, carefully
release pressure from any components with stored
energy, such as hydraulic components and springs.
• Release hydraulic pressure by lowering attachment
or cutting units to the ground or to a mechanical stop
and move hydraulic control levers.
• Securely support any machine or attachment
elements that must be raised for service work.
Use jack stands or lock service latches to support
components when needed.
• Never run engine unless park brake is locked.
• Keep all parts in good condition and properly
installed. Fix damage immediately. Replace worn or
broken parts. Replace all worn or damaged safety
and instruction decals.
• Check all hardware at frequent intervals to be sure
the equipment is in safe working condition.
• Do not modify machine or safety devices.
Unauthorized modications to the machine or
attachment may impair its function and safety.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Safety
Wear Appropriate Clothing
• Always wear eye protection when operating the
machine.
• Wear close fitting clothing and safety equipment
appropriate for the job.
• While operating this machine, always wear substantial
footwear and long trousers. Do not operate the
equipment when barefoot or wearing open sandals.
• Wear a suitable protective device such as earplugs.
Loud noise can cause impairment or loss of hearing.
• Always wear substantial footwear. Do not operate the
equipment when barefoot or wearing open sandals.
Read Chemical Container Label
• Chemicals can be dangerous. Improper selection or
use can injure persons, animals, plants, soils or other
property. Select the right chemical for the job and
handle and apply with care.
• Read the instructions, precautions, and warnings on
the container label before opening. Use the product
strictly according to label directions for specific
applications, in the amounts specified, at the times
specified and only when needed.
• Do not remove labels from chemical containers. Store
all chemicals in their original containers.
• Do not mix chemicals unless stated on the container
label.
• Store chemicals when not in use according to the
container label.
Handle Chemical Products Safely
• Direct exposure to hazardous chemicals can cause
serious injury. Potentially hazardous chemicals
used with John Deere equipment include pesticides,
herbicides and fungicides.
• A Material Safety Data Sheet (MSDS) provides specific
details on chemical products: physical and health
hazards, safety procedures, and emergency response
techniques.
• The MSDS should be obtained from the chemical
dealer at the time of the chemical purchase.
• Check the MSDS before beginning any job using a
hazardous chemical. Know exactly what the risks
are and how to do the job safely. Always wear
recommended personal protection equipment.
Handling Waste Product and Chemicals
• Waste products, such as used oil, fuel, coolant,
brake fluid, and batteries, can harm the environment
and people.
• Do not use beverage containers for waste fluids -
someone may drink from them.
• See your local Recycling Center or authorized dealer
to learn how to recycle or get rid of waste products.
• A Material Safety Data Sheet (MSDS) provides specific
details on chemical products: physical and health
hazards, safety procedures, and emergency response
techniques. The seller of the chemical products used
with your machine is responsible for providing the
MSDS for that product.
Parking Safely
1. Stop vehicle on a level surface, not a slope.
2. Fully lower the cargo box and any attachments on the
machine that can be lowered.
3. Fully engage parking brake and ensure vehicle is not
moving.
4. Stop engine.
5. Remove key.
6. Before you leave the operator’s seat, wait for the
engine and all moving parts to stop.
7. Disconnect the negative battery cable before servicing
the machine.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Assembly
Parts in Kit
B
Parts not shown to scale
A
Description Letter Qty
Spreader A 1
Hitch Mount B 1
Hopper Cover Not
Shown 1
Spreader Harness Not
Shown 1
1/2 in. x 1-1/2 in. Flange Bolts Not
Shown 4
Receptacle Dust Cap Not
Shown 1

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Installation
Spreader Assembly
1. Connect hitch mount (A) to the spreader using four 1/2
in. x 1- 1/2 in. ange bolts (B).
2. For use with 835/865 Gator, remove CAN termination
plug (C) from spreader harness and replace with
receptacle dust cap (D).
Installing Spreader
1. To aid in assembly, add grease to the slots.
NOTE: It is recommended that two people lift the
spreader for this installation.
2. Side receiver arms (A) into slots (B) until it clicks to lock
into place. Be sure that the hitch latches securely.
B
A
A
B
3. Plug the spreader harness into the chassis harness
(C). Secure the harness to the hitch using the harness
clips (D).
D
C

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Determine Vehicle Load Capacity
Use the vehicle’s Operator’s Manual to determine vehicle
load capacity.
Use Correct Tires and Ination
See specication section of this operators manual for
spreader weight
See tire descriptions and ination pressures for load
conditions in the specications section of the vehicles
operator’s manual.
Operation
CAUTION: Avoid Injury! Overloading the
vehicle causes loss of control and causes
serious injury or death.
• Do not allow the Gross Vehicle Weight
(GVW) to exceed the Gross Vehicle Weight
Rating (GVWR) of the vehicle.
• Remove excess weight before operating
vehicle.
Note: Optional equipment and attachments
that are not standard equipment reduce your
cargo box capacity; so they must be included
when determining gross vehicle weight.
CAUTION: Help prevent severe bodily
injury or death, failure to observe the
recommendations in the vehicle operator’s
manual may result in loss of stability and
operator control.
Spreader Components
Hopper 3 cu. ft. capacity, high density
polypropylene molded hopper
Spinner Motor Variable speed 12V DC motor drives a
12in spinner disk to distribute material
Gate Motor 12V DC Actuator controls the gate
Controller 12V DC motor driver controls the
spinner, and motor
Display 2.4 in. monochrome OLED with 7
buttons
Electric gate control (Open/Close)
Variable speed spinner for spread width control
Adjustable spread pattern for various materials
Barrier shield
Detailed error/diagnostic message
Spreader Features
Turning On Display
The vehicle key must be in the “On” or “Run” position for
the display to turn on.
When turned on, a splash screen will appear as the
software loads. The operation page will appear when
loading is complete. The spreader is now ready to operate.
Button # Button Functions
1ON Spinner/
Auger On
Press the “ON”
button to turn on the
spinner.
2OFF Spinner/
Auger Off
Press the “OFF”
button to turn off the
spinner.
3OPEN/
ON
Gate Open/
Vibe ON
Press the “OPEN”
button to open the gate
/.
Press the “ON” button
to turn on the vibe.
4CLOSE/
OFF
Gate
Close/Vibe
OFF
Press the “CLOSE”
button to close the
gate /
5 Down
Arrow
Press to decrease
the speed of the
spinner/auger.
6Up Arrow Press to increase the
speed of the spinner/
auger.
7MENU Menu
Button
Press to enter the
menu.
Navigation
Control the spreader using the buttons on the display.
Button functionality is described in the table below and
varies by screen.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
From the operation page, an operator can power on the
spreader, enter the menu, or spinner speed.
NOTE: In order to control the Gate/Vibe motor the
Spinner/Auger must be active, if it is not active the
Gate/Vibe label state will blink indicating the motor is
disabled.
Operation
Default Motor Controls
Starting and
Stopping Spreader
Press the ON button to turn on
the spinner/auger.
Press the OFF button to turn off
the spinner/auger
Gate/Vibe Control Press the OPEN/ON button to
open the gate or to turn on the
vibe.
Press the CLOSE/OFF button to
close the gate or to turn off the
vibe.
Adjusting Motor
Speed
Press the bottom left button
(down arrow) to decrease the
speed of the motor in 11%
increments.
Press the bottom mid button (up
arrow) to increase the speed of
the motor in 11% increments.
Entering the Menu Press the bottom right button
(menu) to enter the menu.
Menu Options
Diagnostics Review the warning and fault list.
Maintenance Displays maintenance menu with
options to reverse auger.
Settings Adjusts the parameters of the display.
System Display system’s voltage and
temperature.
Support Displays support information.
Controller Info Displays controller information
Display Info Displays system information.
Exit Returns to the home page.
Main Menu
Pressing the menu button will enter the main menu.
Settings Menu
Selecting settings from the main menu will enter the
settings menu.
From the settings menu, the user can select the following:
• Display to select the brightness level.
• CAN, to enable/disable the CAN terminator resistor.
• Exit, go back to main menu.
Once in the main menu, the user can select the following:

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Operation
Display Screen Messages
During operation a message may appear describing a
potential issue or problem.
Motor Over Current A motor is drawing too
much current. Spreader will
shut down, display an error
message, and prompt the
operator to reset the spreader.
The spinner disk may be
jammed and needs to be
cleared.
Motor Open Circuit This message is displayed
when a motor is disconnected.
Ensure that all harnesses
are installed correctly, and
connectors are fully seated.
Ensure that the status light on
the motor controller is green.
Voltage High This message is displayed
when the controller is receiving
a voltage higher than 16V.
Please check battery voltage.
Voltage low This message is displayed
when the controller is receiving
a voltage lower than 9V. Please
check battery voltage.
No Comm This message is displayed
when there is a loss of
communication with the
motor controller. Ensure that
all harnesses are installed
correctly, and connectors
are fully seated. Ensure that
the status light on the motor
controller is green.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Operation
Spreading
NOTE: Always use the hopper cover to prevent mois-
ture buildup. Do not let spreader sit idle with material
in the hopper for an extended period of time. This can
cause material to compact, reduce or stop the ow of
material and cause permanent hopper damage.
CAUTION: DO NOT leave unused material
in hopper. Material can freeze or solidify,
causing unit to not work properly. Empty
and clean after each use.
IMPORTANT: Never operate near
pedestrians. Never exceed 10 mph while
spreading. This spreader is for fertilizer only.
Not recommended for use with rock salt.
CAUTION: Disconnect electric and/or
hydraulic power and tag out if required
before servicing or performing maintenance.
The fertilizer spreader is for ner materials. Do not
use spreader for rock salt. Recalibrate when switching
between materials.
• To adjust spread width, increase/decrease spinner
speed.
• To adjust application rate, increase/decrease gate
opening or vehicle speed.
The adjustable n (A) provides a way to adjust spread
patterns with different materials. Select the desired
position by lifting the outside top edge (B). Different
materials act in different ways in relation to spinner speed.
Moving the ns corrects most pattern issues without
having to sacrice spinner speed. All adjustments must
be made on pavement and positions noted for future
reference. Incorporate adjustments into your normal
calibration process.
1. To change the material ow rate, adjust the gate stop
bolt. Loosen knob (C) and reposition in the slot.
2. Position the knob in the end of the slot at position (D)
for maximum material output.
3. The barrier shield (E) comes installed on the left side
of the fertilizer spreader. To raise or lower the shield,
push it against the spring (F) and rotate.
C
D
F
E

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Operation
Fertilizer Spreader Calibration
It is the responsibility of the person using this equip-
ment to make sure that every type of material is properly
calibrated to perform as expected. To achieve a safe
and accurate reading for proper material distribution,
calibration must take place on a solid at surface away
from drains and livestock areas. Failure to do so causes
an over or under application that damages turf areas or
gives an ineffective pest control treatment. Any calibration
charts contained in this manual are given as a reference
point only and must not be used as an absolute condition.
Spending a few extra minutes to calibrate not only saves
on wasted materials and time, but also protects turf and
other vegetation. Be aware of the following points before
operating your spreader in the eld.
Flow Rates
Flow rates of materials change for many reasons:
• Formulations vary within the same brand or even
between brands.
• Formulations vary between batches or dates of
manufacture.
• Humidity causes the material to clump and ow poorly.
• Poor spreader maintenance causes ow changes.
• Slide stop has moved or has been calibrated to
another type of material.
• Human error causes rate miscalculation.
Items Needed for Calibration
• A way to catch the material for weighing.
• A device to measure distance.
• A scale to weigh your product.
• A stop watch or other device to measure time.
Conversion
To convert pounds per 1000 sq. ft. to pounds per acre,
multiply your rate by 43.6. To convert miles-per-hour to
feet-per-minute, multiply miles-per-hour by 88.
Other Important Information:
1 acre is equal to 43,560 sq. ft. Ground speed is import-
ant to keep in mind when doing calculations, convert
miles-per-hour to feet-per-minute.
Calibration
NOTE: To change the spread pattern, adjust the
spinner ns.
To calibrate the spreader, use a level, open area of pave-
ment. Set the gate stop in the middle as a starting point.
Fill the hopper with the material desired. Turn on the
spreader. To achieve desired spread width, adjust spinner
speed. Record the spinner speed setting and the resulting
spread width. Determine the driving speed while spread-
ing (in feet-per-minute). Determine desired application
rate (converted to pounds-per-square-foot). To determine
the pounds-per-minute that the gate setting must allow,
use the following equation.
Desired Application Rate (pounds-per-square-foot) x
Spread Width (feet) x Speed (feet-per-minute) = Pounds-
per-minute.
Open the gate. The spinner must be operating during this
step. Put a bucket or other means of catching material
at the back of the spreader. Leave the gate open for one
minute. Brush off all excess from the spinner and motor
enclosure into the bucket. Weigh the bucket with material.
Subtract the weight of the bucket when empty and record.
To achieve the required “pounds-per-minute” rate, adjust
the gate based on the result. Once the setting is estab-
lished, you are ready to spread. Record for future use
on the notes page of this manual (example record: when
spreading Material XYZ... Spinner speed 50% (width=14
ft.), Drive 3.5 mph (308 fpm), Gate = 13 in.).
Begin spreading with the vehicle speed, gate setting, and
spinner speed used in your calculations.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Operation

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Maintenance
Routine Maintenance
To keep your spreader running smoothly, follow these
recommendations.
• Wash out the hopper and rinse off all external surfaces
after use.
• Apply dielectric grease on all electrical connection to
prevent corrosion at the end of the season and each
time electrical connections are unplugged.
• Clear away any material from the controller.
• Inspect electrical connections for debris and clean
before connecting.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Removal and Storage
Removal
1. Disconnect spreader wire harness from chassis harness.
2. Unclip the spreader harness from the hitch and loop the
harness around spreader frame.
NOTE: It is recommended that two people lift the
spreader for this removal
3. Lift Lock bar (A) and slide implement outwards.
CAUTION: Disconnect electric and/or
hydraulic power and tag out if required before
servicing or performing maintenance.
A
4. Lift away the implement.
Storage
1. Wash spreader and allow to dry.
2. Apply dielectric grease on all the electrical connections
to prevent corrosion.
3. Cover spreader and store.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Troubleshooting
The Display Module and Control Module work as a system and communicate with each other over the CAN bus. Both
modules should be powered up at the same time for proper functionality.
Symptom Troubleshooting Guide
Control Module and/or Display Module does not turn on
Control Module status light is off
Display Module screen is off and/or status LED is off
1. Ensure connections are fully seated.
2. Remove front wire harness. Check for 12v at pins A-J at
rear connection attachment point.
3. If no voltage, vehicle has insufcient power or ground
connection.
• If 12V, check for 12v at pins at pins 2-3 on display
side of connector.
• If no voltage, replace wire harness.
• If 12v, display is faulty. Replace display.
No Communications
Check for 12V at Control Module pins M1-M4, if no voltage
check:
• Fuse on Gator Harness
• Chassis harness connection
• Spreader harness connection.
No Communications
No CAN communication between Control Module and
Display Module
• Display harness connection.
• Spreader harness connection.
• Check continuity from Control Module pin A2 to
spreader harness pin 4
• Check continuity from Control Module pin C2 to
spreader harness pin 5
Material is not owing with the gate open
• Check that the gate stop is in the correct position
according to the calibration procedure and adjust if
necessary
• Material that has gotten damp may clump and will
not ow as well as dry material. Always operate the
spreader with the lid installed
Display Module Error Codes
SPN Error Description Troubleshooting Guide
110 0 High Temperature
Fault
Internal
temperature above
75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
1101 High Temperature
Warning
Internal
temperature above
65C
No action is necessary. The module will continue operating the
spreader with an internal temperature between 65C and 75C but
will stop operating the spreader if the internal temperature rises
above 75C.
1102 Low Temperature
Fault
Internal
temperature below
-30C
The module will stop operating the spreader if the internal
temperature falls below -30C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to low temperatures to
allow its internal temperature to rise above -30C. The module must
be power cycled to recover from a low temperature fault.

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Troubleshooting
SPN Error Description Troubleshooting Guide
1103 Low Temperature
Warning
Internal
temperature below
-20C
No action is necessary. The module will continue operating the
spreader with an internal temperature between -20C and -30C but
will stop operating the spreader if the internal temperature falls
below -30C.
110 4 High Voltage
Fault
System voltage
above 19V
The module will stop operating the spreader if the system voltage
rises above 19V. This is a latching fault to protect the electronics.
The module must be power cycled to recover from a high voltage
fault. Note that the Display Module high voltage fault is not the
same as the Control Module high voltage fault.
1105 High Voltage
Warning
System voltage
above 18V
No action is necessary. The module will continue operating the
spreader with a system voltage between 18V and 19V but will stop
operating the spreader if the system voltage rises above 19V. Note
that the Display Module high voltage warning is not the same as the
Control Module high voltage warning.
110 6 Low Voltage Fault System voltage
below 6.5V
The module will stop operating the spreader if the system voltage
falls below 6.5V. This is a latching fault to protect the electronics.
The module must be power cycled to recover from a low voltage
fault. Note that the Display Module low voltage fault is not the same
as the Control Module low voltage fault.
1107 Low Voltage
Warning
System voltage
below 7V
No action is necessary. The module will continue operating the
spreader with a system voltage between 7V and 6.5V but will stop
operating the spreader if the system voltage falls below 6.5V. Note
that the Display Module low voltage warning is not the same as the
Control Module low voltage warning.
1108
Lost
Communication
Fault
Lost CAN
communication
The module will stop operating the spreader if the CAN
communication with the Motor Control Module is lost. Make sure all
wiring harness connections are secure and all wiring is intact and
undamaged. The modules must be power cycled to recover from a
lost communication fault.
9999 Unknown Fault Unknown Fault Contact Superior Tech for support.
Control Module Error Codes
The Control Module for the Fertilizer Spreader contains two motor drivers: MD1 controls the spinner and MD2 controls the
gate actuator. The errors that reference MD1 are related to the spinner. The errors that reference MD2 are related to the
gate actuator.
SPN Error Description Troubleshooting Guide
6100 MD1 Open Circuit
Motor Driver
1 output is
disconnected
The motor driver checks if a load is connected between the positive
and negative motor driver outputs before attempting to drive the
motor. This is a latching fault to protect the electronics. Verify
that the connections at the Control Module terminals are properly
secured, the wiring harnesses are not damaged, and all wiring
harness connectors are properly connected. Verify that the motor
is not damaged. The module must be power cycled to recover from
the open circuit fault.
6101 MD1 Over
Current
Motor Driver 1
current draw above
15A
The motor driver will stop operating the spreader if the output
current goes above 15A. This is a latching fault to protect the
electronics. Verify that the motor is not damaged. A heavily loaded
or jammed spinner can result in a very high current draw. Reduce
the load on the spinner or clear the jam before power cycling the
module to recover from the over current fault.

19
LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Troubleshooting
SPN Error Description Troubleshooting Guide
6102 MD1 Short to
Battery
Motor Driver 1
output shorted to
battery positive
The motor driver checks if the positive or negative motor driver
outputs are shorted to battery positive (12V) before attempting to
drive the motor. This is a latching fault to protect the electronics.
Verify that the connections at the Control Module terminals are not
being bridged by any conductive material. Verify that the wiring
harnesses are not damaged and all wiring harness connectors are
properly connected.
6103 MD1 Short to
Ground
Motor Driver 1
output shorted to
battery negative
The motor driver checks if the positive or negative motor driver
outputs are shorted to battery negative (ground or 0V) before
attempting to drive the motor. This is a latching fault to protect
the electronics. Verify that the connections at the Control Module
terminals are not being bridged by any conductive material. Verify
that the wiring harnesses are not damaged and all wiring harness
connectors are properly connected.
6104 MD1 TLE
OverTemp Fault
Motor Driver 1
internal temperature
above 75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
6105
MD1 TLE
OverTemp
Warning
Motor Driver 1
internal temperature
above 65C
No action is necessary. The module will continue operating the
spreader with an internal temperature between 65C and 75C but
will stop operating the spreader if the internal temperature rises
above 75C.
6106 MD1 FET
Overtemp Fault
Motor Driver 1 FET
temperature above
75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
6107
MD1 FET
Overtemp
Warning
Motor Driver 1 FET
temperature above
65C
No action is necessary. The module will continue operating the
spreader with an internal FET temperature between 65C and 75C
but will stop operating the spreader if the internal FET temperature
rises above 75C.
6108 MD1 High VBAT
Fault
Motor Driver 1
voltage above 18V
The module will stop operating the spreader if the system voltage
rises above 18V. This is a latching fault to protect the electronics.
The module must be power cycled to recover from a high voltage
fault. Note that the Control Module high voltage fault is not the
same as the Display Module high voltage fault.
6109 MD1 High VBAT
Warning
Motor Driver 1
voltage above 16V
No action is necessary. The module will continue operating the
spreader with a system voltage between 16V and 18V but will stop
operating the spreader if the system voltage rises above 18V. Note
that the Control Module high voltage warning is not the same as the
Display Module high voltage warning.
6110 MD1 Low VBAT
Fault
Motor Driver 1
voltage below 8V
The module will stop operating the spreader if the system voltage
falls below 8V. This is a latching fault to protect the electronics. The
module must be power cycled to recover from a low voltage fault.
Note that the Control Module low voltage fault is not the same as
the Display Module low voltage fault.
6111 MD1 Low VBAT
Warning
Motor Driver 1
voltage below 9V
No action is necessary. The module will continue operating the
spreader with a system voltage between 8V and 9V but will stop
operating the spreader if the system voltage falls below 8V. Note
that the Control Module low voltage warning is not the same as the
Display Module low voltage warning.

20
LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Troubleshooting
SPN Error Description Troubleshooting Guide
6112 MD1 No
Communication
Motor Driver 1 is
not responding at
power up
The module will not operate if it cannot communicate with the
internal motor driver at power up. Power cycle the module. If the
error is still active contact Superior Tech for support.
6113 MD1 Lost
Communication
Motor Driver 1 has
lost communication
for 10 seconds
The module will stop operating if it loses communication with the
internal motor driver for more than 10 seconds. Power cycle the
module. If the error is still active contact Superior Tech for support.
6200 MD2 Open Circuit
Motor Driver
2 output is
disconnected
The motor driver checks if a load is connected between the positive
and negative motor driver outputs before attempting to drive the
motor. This is a latching fault to protect the electronics. Verify
that the connections at the Control Module terminals are properly
secured, the wiring harnesses are not damaged, and all wiring
harness connectors are properly connected. Verify that the motor
is not damaged. The module must be power cycled to recover from
the open circuit fault.
6201 MD2 Over
Current
Motor Driver 2
current draw above
15A
The motor driver will stop operating the spreader if the output
current goes above 15A. This is a latching fault to protect the
electronics. Verify that the motor is not damaged. A heavily loaded
or jammed actuator can result in a very high current draw. Reduce
the load on the actuator or clear the jam before power cycling the
module to recover from the over current fault.
6202 MD2 Short to
Battery
Motor Driver 2
output shorted to
battery positive
The motor driver checks if the positive or negative motor driver
outputs are shorted to battery positive (12V) before attempting to
drive the motor. This is a latching fault to protect the electronics.
Verify that the connections at the Control Module terminals are not
being bridged by any conductive material. Verify that the wiring
harnesses are not damaged and all wiring harness connectors are
properly connected.
6203 MD2 Short to
Ground
Motor Driver 2
output shorted to
battery negative
The motor driver checks if the positive or negative motor driver
outputs are shorted to battery negative (ground or 0V) before
attempting to drive the motor. This is a latching fault to protect
the electronics. Verify that the connections at the Control Module
terminals are not being bridged by any conductive material. Verify
that the wiring harnesses are not damaged and all wiring harness
connectors are properly connected.
6204 MD2 TLE
OverTemp Fault
Motor Driver 2
internal temperature
above 75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
6205
MD2 TLE
OverTemp
Warning
Motor Driver 2
internal temperature
above 65C
No action is necessary. The module will continue operating the
spreader with an internal temperature between 65C and 75C but
will stop operating the spreader if the internal temperature rises
above 75C.
6206 MD2 FET
Overtemp Fault
Motor Driver 2 FET
temperature above
75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
6207
MD2 FET
Overtemp
Warning
Motor Driver 2 FET
temperature above
65C
No action is necessary. The module will continue operating the
spreader with an internal FET temperature between 65C and 75C
but will stop operating the spreader if the internal FET temperature
rises above 75C.