John Deere Motor Graders 770G, 770GP, 772G, 772GP Operation & Test Service Manual (TM12139)
Catalog:
Price: US$ 79.00
Complete Operation & Test service manual with Electrical Wiring Diagrams for John Deere Motor Graders 770G, 770GP, 772G, 772GP, with workshop information to maintain, diagnose, and rebuild like professional mechanics.
John Deere Motor Graders 770G, 770GP, 772G, 772GP (Engine 6090HDW11, Engine 6090HDW16) workshop Diagnosis & Test manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
TM12139 - John Deere Motor Graders 770G, 770GP, 772G, 772GP Technical Manual - Operation & Test.PDF
TM12139 - John Deere Motor Graders 770G, 770GP, 772G, 772GP Technical Manual - Operation & Test.EPUB
Total Pages: 2,510 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS (SN. 634380—656507)
Foreword
9000 - General Information
9001 - Diagnostics
9005 - Operatinal Checkout Procedure
9010 - Engine
9015 - Electrical System
9016 - Six Wheel Drive (6WD)
9020 - Power Train
9025 - Hydraulic System
9031- Heating and Air Conditioning
Foreword
Manual Identification-READ THIS FIRST!
General Information
Safety
Diagnostics
PCU Diagnostic Trouble Codes
ECU Diagnostic Trouble Codes
ADU Diagnostic Trouble Codes
FLC Diagnostic Trouble Codes
HVC Diagnostic Trouble Codes
AVC Diagnostic Trouble Codes
OC3 Diagnostic Trouble Codes
HWD Diagnostic Trouble Codes
LJ1 Diagnostic Trouble Codes
LJ2 Diagnostic Trouble Codes
LJ3 Diagnostic Trouble Codes
LJ4 Diagnostic Trouble Codes
RJ1 Diagnostic Trouble Codes
RJ2 Diagnostic Trouble Codes
RJ3 Diagnostic Trouble Codes
RJ4 Diagnostic Trouble Codes
Operational Checkout Procedure
Operational Checkout Procedure
Engine
Theory of Operation
Diagnostic Information
Adjustments
Tests
Electrical System
System Information
System Diagrams
Sub-System Diagnostics
Monitor Operation
References
Six Wheel Drive (6WD)
Theory of Operation
Diagnostic Information
Adjustments
Tests
Power Train
Theory of Operation
Diagnostic Information
Tests
Hydraulic System
Theory of Operation
Diagnostic Information
Tests
Heating and Air Conditioning
Theory of Operation
Diagnostic Information
Tests
TABLE CONTENTS - Expanded View
Foreword
Manual Identification—READ THIS FIRST!
Section 9000: General Information
Group 01: Safety
Recognize Safety Information
Follow Safety Instructions
Operate Only If Qualified
Wear Protective Equipment
Avoid Unauthorized Machine Modifications
Inspect Machine
Stay Clear of Moving Parts
Avoid High-Pressure Fluids
Avoid High-Pressure Oils
Work In Ventilated Area
Prevent Fires
Prevent Battery Explosions
Handle Chemical Products Safely
Decommissioning — Proper Recycling and Disposal of Fluids and Components
Exhaust Filter Ash Handling and Disposal
Prepare for Emergencies
Clean Debris from Machine
Use Steps and Handholds Correctly
Start Only From Operator's Seat
Use and Maintain Seat Belt
Prevent Unintended Machine Movement
Avoid Work Site Hazards
Keep Riders Off Machine
Avoid Backover Accidents
Avoid Machine Tip-Over
Operating Or Traveling On Public Roads
Inspect and Maintain ROPS
Add and Operate Attachments Safely
Park and Prepare for Service Safely
Clean Exhaust Filter Safely
Service Cooling System Safely
Remove Paint Before Welding or Heating
Make Welding Repairs Safely
Drive Metal Pins Safely
Service Tires Safely
Section 9001: Diagnostics
Group 10: PCU Diagnostic Trouble Codes
000177.00 - Transmission Oil Temperature High
000177.04 - Transmission Oil Temperature Short To Ground
000525.02 - Program Variable REQ_GEAR Has Taken On An Invalid Value
000525.12 - Request For An Undefined Shift Being Made
000723.02 - Transmission Input Speed Sensor Bad Data
002000.02 - ECU CAN Data Invalid
002000.09 - Can Communication Lost For ECU
002033.02 - FLC CAN Data Invalid
002033.09 - CAN Communication Lost For FLC
002225.09 - CAN Communication Lost For Six Wheel Drive
522252.00 - Clutch 1 Hold Pressure Too High
522252.01 - Clutch 1 Hold Pressure Too Low
522253.00 - Clutch 2 Hold Pressure Too High
522253.01 - Clutch 2 Hold Pressure Too Low
522254.00 - Clutch 3 Hold Pressure Too High
522254.01 - Clutch 3 Hold Pressure Too Low
522255.00 - Clutch 4 Hold Pressure Too High
522255.01 - Clutch 4 Hold Pressure Too Low
522256.00 - Clutch A Hold Pressure Too High
522256.01 - Clutch A Hold Pressure Too Low
522257.00 - Clutch B Hold Pressure Too High
522257.01 - Clutch B Hold Pressure Too Low
522258.00 - Clutch C Hold Pressure Too High
522258.01 - Clutch C Hold Pressure Too Low
522259.00 - Clutch D Hold Pressure Too High
522259.01 - Clutch D Hold Pressure Too Low
522397.04 - Not In Forward Or Reverse While In Gear
522398.12 - Park And Not Park Both Active
522405.05 - Park Brake Pressure Low At Power-up
522413.12 - Gear Bits Active In Park
522414.03 - Transmission Clutch D Short To Power
522414.05 - Transmission Clutch D Open/Short To Ground
522507.14 - Inching Pedal During Trans Calibration
522517.31 - Engine Stall Prevention Active
523655.03 - Forward And Reverse Both Active
523699.31 - Transmission Speed Clutch Slipping
523700.00 - Clutch Protection Excessive Inching
523700.16 - Clutch Protection Excessive Inching
523700.31 - Transmission Direction Clutch Slipping
523708.02 - Inching Switch Signal Bad
523712.31 - Transmission CAL Without Park Brake Set
523717.31 - Helper Clutch Pressure High
523718.31 - Clutch Drum Speed Decel Excessive
523720.00 - Clutch D Fill Time Too Long
523720.01 - Clutch D Fill Time Too Short
523721.00 - Clutch C Fill Time Too Long
523721.01 - Clutch C Fill Time Too Short
523722.00 - Clutch B Fill Time Too Long
523722.01 - Clutch B Fill Time Too Short
523723.00 - Clutch A Fill Time Too Long
523723.01 - Clutch A Fill Time Too Short
523724.00 - Clutch 4 Fill Time Too Long
523724.01 - Clutch 4 Fill Time Too Short
523725.00 - Clutch 3 Fill Time Too Long
523725.01 - Clutch 3 Fill Time Too Short
523726.00 - Clutch 2 Fill Time Too Long
523726.01 - Clutch 2 Fill Time Too Short
523727.00 - Clutch 1 Fill Time Too Long
523727.01 - Clutch 1 Fill Time Too Short
523728.31 - Transmission Reverse Cylinder Speed Incorrect At Calibration
523729.31 - Transmission Forward Cylinder Speed Incorrect At Calibration
523730.31 - No Transmission Cylinder Speed During Calibration
523731.31 - Transmission Output Speed Detected At Calibration
523732.31 - Engine Speed Too Low To Calibrate The Transmission
523733.31 - Engine Speed Too High To Calibrate The Transmission
523734.31 - Transmission Too Cold To Calibrate
523735.04 - Valve Driver Supply Voltage Low
523736.14 - Bad Gear Position Switch State
523738.02 - Shifter Handle Problem
523738.31 - Shifter Handle Problem
523739.31 - Not Park And Forward/Reverse Mismatch
523740.31 - Forward/Reverse Switch And Gear Mismatch
523741.31 - Started In Gear
523742.31 - Shifter Vsense Low
523747.14 - Park and Not Park Both Passive
523750.04 - Not Park Passive In Gear Or Neutral
523754.03 - Not Park Active At Startup
523755.05 - Park Start Input Passive At Power Up
523761.03 - Transmission Clutch 4 Short To Power
523761.05 - Transmission Clutch 4 Open/Short To Ground
523762.03 - Transmission Clutch 3 Short To Power
523762.05 - Transmission Clutch 3 Open/Short To Ground
523763.03 - Transmission Clutch 2 Short To Power
523763.05 - Transmission Clutch 2 Open/Short To Ground
523764.03 - Transmission Clutch 1 Short To Power
523764.05 - Transmission Clutch 1 Open/Short To Ground
524029.00 - Inching Pedal Out Of Range High
524029.01 - Inching Pedal Out Of Range Low
524029.12 - Inching Pedal Minimum Voltage Exceeds Maximum Voltage
524194.07 - Direction Sensor Mismatch
524271.03 - Transmission Clutch C Short To Power
524271.05 - Transmission Clutch C Open/Short To Ground
524272.03 - Transmission Clutch B Short To Power
524272.05 - Transmission Clutch B Open/Short To Ground
524273.03 - Transmission Clutch A Short To Power
524273.05 - Transmission Clutch A Open/Short To Ground
524275.31 - Forward/Reverse Without Valid Gear
Group 20: ECU Diagnostic Trouble Codes
000029.03 - Decelerator Pedal Short to Power
000091.03 - Accelerator Pedal Short to Power
000091.04 - Accelerator Pedal Open or Short
000111.07 - Engine Coolant Level Mismatch
000111.17 - Engine Coolant Level Low
000596.31 - Engine Speed Control Enable Switch Fault
000600.31 - Engine Speed Accel/Decel Switch Fault
001196.31 - ECU Anti Theft Locked
001321.05 - Starter Relay Open Circuit
001321.06 - Starter Relay High Current
001321.30 - Starter Engaged for 30 Seconds
001321.31 - Starter Solenoid Open Circuit
002003.09 - CAN Communication Lost For TCU
002033.09 - CAN Communication Lost For FLC
002033.19 - Flex Power Messages Lost
003353.31 - Alternator Output Fault
003587.05 - Ether Solenoid Open or Short to Power
003587.06 - Ether Solenoid Circuit Short to Ground
005004.06 - Soft Start Solenoid Current High
Group 30: ADU Diagnostic Trouble Codes
000158.03 - Switched Power Voltage High
000158.04 - Switched Power Voltage Low
000168.03 - Battery Voltage High
000168.04 - Battery Voltage Low
000442.00 - Display Temperature High
000442.01 - Display Temperature Low
001491.11 - LCD Backlight Failure
002033.09 - CAN Communication Lost For FLC
003597.02 - 5.0 Volt Power Supply Invalid
003598.02 - 1.5 Volt Power Supply Invalid
003599.02 - 3.3 Volt Power Supply Invalid
523436.14 - ADU Watchdog Time Out
523438.31 - Memory Error
523651.02 - Memory Stack Overflow
523773.03 - CAN High Voltage High
523773.04 - CAN High Voltage Low
523774.03 - CAN Low Voltage High
523774.04 - CAN Low Voltage Low
524076.10 - Information Button Stuck
524077.10 - Back Key Button Stuck
524078.10 - Menu Select Button Stuck
524080.10 - Down Arrow Button Stuck
524082.10 - Up Arrow Button Stuck
Group 40: FLC Diagnostic Trouble Codes
000096.03 - Fuel Level Sender Open or Short
000096.04 - Fuel Level Sender Short To Ground
000117.01 - Service Brake Pressure Low
000117.04 - Service Brake Accumulator Switch Short to Ground
000167.03 - System Voltage Above Normal
000167.04 - System Voltage Below Normal
000168.03 - High Battery Voltage
000168.04 - Low Battery Voltage
000746.05 - Differential Lock Solenoid Open or Short
000746.06 - Differential Lock Solenoid High Current
000880.05 - Brake Lights Open or Short
000880.06 - Brake Lights High Current
000977.05 - Reverse Fan Solenoid Open or Short
000977.06 - Reverse Fan Solenoid Short to Ground
000977.07 - Fan Pressure Too High to Reverse
001045.04 - Brake Light Switch Short to Ground
001071.03 - Fan Speed Solenoid Open or Short
001071.04 - Fan Speed Solenoid High Current
001196.02 - ECU Toggle Lock Status Failed
001550.05 - AC Clutch Open Circuit
001550.06 - AC Clutch Short to Ground
001638.00 - Hydraulic Oil High Temperature
001638.03 - Hydraulic Oil Temperature Sensor Open or Short
001638.04 - Hydraulic Oil Temp Short To Ground
001639.01 - Fan Speed Signal Extremely Low
001639.16 - Fan Speed Signal Moderately High
001639.18 - Fan Speed Signal Moderately Low
001713.01 - Hydraulic Oil Filter Restricted
001713.03 - Hydraulic Oil Filter Switch Short to Power
001762.01 - Hydraulic Pressure Low
001762.03 - Hydraulic Pressure Short to Power
001762.04 - Hydraulic Pressure Short to Ground
002000.09 - CAN Communication Lost For ECU
002003.09 - CAN Communication Lost For TCU
002034.09 - CAN Communication Lost For AVC
002040.09 - CAN Communication Lost For ADU
002141.09 - CAN Communication Lost For SSM
002160.09 - CAN Communication Lost For RJ1
002161.09 - CAN Communication Lost For RJ2
002162.09 - CAN Communication Lost For RJ3
002163.09 - CAN Communication Lost For RJ4
002165.09 - CAN Communication Lost For LJ1
002166.09 - CAN Communication Lost For LJ2
002167.09 - CAN Communication Lost For LJ3
002168.09 - CAN Communication Lost For LJ4
002213.09 - CAN Communication Lost For HVC
002225.09 - CAN Communication Lost For 6WD
002251.09 - JDL CAN Comm Bad Update Rate
002348.05 - High Beam Lamps Open Circuit
002348.06 - High Beam Lamps High Current
002350.05 - Low Beam Lamps Open Circuit
002350.06 - Low Beam Lamps High Current
002352.05 - Cab Front Work Lights Open Circuit
002352.06 - Cab Front Work Lights High Current
002353.05 - Front Work Lights Open Circuit
002353.06 - Front Work Lights High Current
002356.05 - Front Cab Corner Lights Open Circuit
002356.06 - Front Cab Corner Lights High Current
002360.05 - Rear Work Lights Open Circuit
002360.06 - Rear Work Lights High Current
002362.05 - Rear Cab Corner Lights Open Circuit
002362.06 - Rear Cab Corner Lights High Current
002366.05 - Side Work Lights Open Circuit
002366.06 - Side Work Lights High Current
002368.05 - Left Turn Lights Open Circuit
002368.06 - Left Turn Lights High Current
002370.05 - Right Turn Lights Open Circuit
002370.06 - Right Turn Lights High Current
002378.05 - Marker/Tail Lights Open Circuit
002378.06 - Marker/Tail Lights High Current
002386.06 - Rotary Beacon Short to Ground
002874.04 - High Beam Switch Short to Ground
002876.04 - Turn Signal Switch Short to Ground
003318.03 - Blade Pitch Sensor Short to Power
003318.04 - Blade Pitch Sensor Short to Ground
003319.03 - Slope Sensor Short to Power
003319.04 - Slope Sensor Short to Ground
003331.03 - Circle Rotate Sensor Short to Power
003331.04 - Circle Rotate Sensor Short to Ground
3509.03 - Sensor Supply 1 Short to Power
3509.04 - Sensor Supply 1 Short to Ground
003510.03 - Sensor Supply 2 Short to Power
003510.04 - Sensor Supply 2 Short to Ground
003511.03 - Sensor Supply 3 Short to Power
003511.04 - Sensor Supply 3 Short to Ground
520450.03 - Saddle Lock Pin Switch Short to Power
521900.03 - Articulation Angle Sensor Short to Power
521900.04 - Articulation Angle Sensor Short to Ground
522340.05 - Saddle Lock Solenoid Open Circuit
522340.06 - Saddle Lock Solenoid High Current
522341.05 - Heated Mirror Open Circuit
522341.06 - Heated Mirror High Current
522343.06 - Rear Window Defrost Relay High Current
522375.01 - Transmission Oil Filter Restricted
522375.03 - Transmission Oil Filter Switch Short to Power
522415.05 - Front Lower Washer Pump Open Circuit
522415.06 - Front Lower Washer Pump High Current
522416.05 - Front Lower Wiper High Speed Open Circuit
522416.06 - Front Lower Wiper High Speed High Current
522417.05 - Front Lower Wiper Park Open Circuit
522418.05 - Front Lower Wiper Low Speed Open Circuit
522418.06 - Front Lower Wiper Low Speed High Current
522426.05 - Rear Wiper Park Open Circuit
522427.05 - Front Wiper Park Open Circuit
522433.05 - Rear Wiper Low Speed Open Circuit
522433.06 - Rear Wiper Low Speed High Current
522434.05 - Front Wiper Low Speed Open Circuit
522434.06 - Front Wiper Low Speed High Current
522435.05 - Front Wiper High Speed Open Circuit
522435.06 - Front Wiper High Speed High Current
522796.05 - Rear Washer Pump Open Circuit
522796.06 - Rear Washer Pump High Current
522797.05 - Front Washer Pump Open Circuit
522797.06 - Front Washer Pump High Current
523440.04 - Unswitched Power Voltage Low
523688.03 - Steering Angle Sensor Short to Power
523688.04 - Steering Angle Sensor Short to Ground
523689.04 - Differential Lock Switch Short to Ground
523901.01 - Front Lower Window Switch Short to Ground
524044.01 - Axle Oil Filter Restricted
524044.03 - Axle Oil Filter Switch Short to Power
Group 50: HVC Diagnostic Trouble Codes
000583.03 - Mainfall Sensor Short to Power
000583.04 - Mainfall Sensor Short to Ground
001503.04 - Left Armrest Up Switch Short to Ground
001503.13 - Left Armrest Position Undetermined
001565.04 - Left Armrest Down Switch Short to Ground
001566.04 - Right Armrest Down Switch Short to Ground
001899.03 - Circle Side Shift A Short to Power
001899.04 - Circle Side Shift A Open or Short to Ground
001899.15 - Circle Side Shift Valve Warm Up Circuit Fault
001899.17 - Circle Side Shift Valve Warm Up Circuit Fault
001900.03 - Circle Side Shift B Short to Power
001900.04 - Circle Side Shift B Open or Short to Ground
001900.15 - Circle Side Shift Valve Warm Up Circuit Fault
001900.17 - Circle Side Shift Valve Warm Up Circuit Fault
001911.03 - Wheel Lean A Short to Power
001911.04 - Wheel Lean A Open or Short to Ground
001911.15 - Wheel Lean Valve Warm Up Circuit Fault
001911.17 - Wheel Lean Valve Warm Up Circuit Fault
001912.03 - Wheel Lean B Short to Power
001912.04 - Wheel Lean B Open or Short to Ground
001912.15 - Wheel Lean Valve Warm Up Circuit Fault
001912.17 - Wheel Lean Valve Warm Up Circuit Fault
001923.03 - Right Blade Lift A Short to Power
001923.04 - Right Blade Lift A Open or Short to Ground
001923.15 - Right Blade Lift Valve Warm Up Circuit Fault
001923.17 - Right Blade Lift Valve Warm Up Circuit Fault
001924.03 - Right Blade Lift B Short to Power
001924.04 - Right Blade Lift B Open or Short to Ground
001924.15 - Right Blade Lift Valve Warm Up Circuit Fault
001924.17 - Right Blade Lift Valve Warm Up Circuit Fault
001935.03 - Articulation A Short to Power
001935.04 - Articulation A Open or Short to Ground
001935.15 - Articulation Valve Warm Up Circuit Fault
001935.17 - Articulation Valve Warm Up Circuit Fault
001936.03 - Articulation B Short to Power
001936.04 - Articulation B Open or Short to Ground
001936.15 - Articulation Valve Warm Up Circuit Fault
001936.17 - Articulation Valve Warm Up Circuit Fault
001947.03 - Circle Rotate A Short to Power
001947.04 - Circle Rotate A Open or Short to Ground
001947.15 - Circle Rotate Valve Warm Up Circuit Fault
001947.17 - Circle Rotate Valve Warm Up Circuit Fault
001948.03 - Circle Rotate B Short to Power
001948.04 - Circle Rotate B Open or Short to Ground
001948.15 - Circle Rotate Valve Warm Up Circuit Fault
001948.17 - Circle Rotate Valve Warm Up Circuit Fault
001959.03 - Blade Side Shift A Short to Power
001959.04 - Blade Side Shift A Open or Short to Ground
001959.15 - Blade Side Shift Valve Warm Up Circuit Fault
001959.17 - Blade Side Shift Valve Warm Up Circuit Fault
001960.03 - Blade Side Shift B Short to Power
001960.04 - Blade Side Shift B Open or Short to Ground
001960.15 - Blade Side Shift Valve Warm Up Circuit Fault
001960.17 - Blade Side Shift Valve Warm Up Circuit Fault
001971.03 - Left Blade Lift A Short to Power
001971.04 - Left Blade Lift A Open or Short to Ground
001971.15 - Left Blade Lift Valve Warm Up Circuit Fault
001971.17 - Left Blade Lift Valve Warm Up Circuit Fault
001972.03 - Left Blade Lift B Short to Power
001972.04 - Left Blade Lift B Open or Short to Ground
001972.15 - Left Blade Lift Valve Warm Up Circuit Fault
001972.17 - Left Blade Lift Valve Warm Up Circuit Fault
001983.03 - Steering Left A Short to Power
001983.04 - Steering Left A Open or Short to Ground
001983.15 - Steering Valve Warm Up Circuit Fault
001983.17 - Steering Valve Warm Up Circuit Fault
001984.03 - Steering Left B Short to Power
001984.04 - Steering Left B Open or Short to Ground
001984.15 - Steering Valve Warm Up Circuit Fault
001984.17 - Steering Valve Warm Up Circuit Fault
002000.09 - CAN Communication Lost For ECU
002003.09 - CAN Communication Lost For TCU
002033.09 - CAN Communication Lost For FLC
002034.09 - CAN Communication Lost For AVC
002160.09 - CAN Communication Lost For RJ1
002161.09 - CAN Communication Lost For RJ2
002162.09 - CAN Communication Lost For RJ3
002163.09 - CAN Communication Lost For RJ4
002165.09 - CAN Communication Lost For LJ1
002166.09 - CAN Communication Lost For LJ2
002167.09 - CAN Communication Lost For LJ3
002168.09 - CAN Communication Lost For LJ4
520752.04 - Return to Straight Switch 1 Short to Ground
520753.04 - Return to Straight Switch 2 Short to Ground
520754.04 - Return to Straight Switch 3 Short to Ground
520755.04 - Return to Straight Switch 4 Short to Ground
521485.04 - Right Armrest Up Switch Short to Ground
521485.13 - Right Armrest Position Undetermined
523849.13 - Return to Straight Switch Mismatch
Group 60: AVC Diagnostic Trouble Codes
001995.03 - Blade Pitch A Short to Power
001995.04 - Blade Pitch A Open or Short to Ground
001995.15 - Blade Pitch Solenoid Warm Up Circuit Fault
001995.17 - Blade Pitch Solenoid Warm Up Circuit Fault
001996.03 - Blade Pitch B Short to Power
001996.04 - Blade Pitch B Open or Short to Ground
001996.15 - Blade Pitch Solenoid Warm Up Circuit Fault
001996.17 - Blade Pitch Solenoid Warm Up Circuit Fault
002000.09 - CAN Communication Lost For ECU
002003.09 - CAN Communication Lost For TCU
002033.09 - CAN Communication Lost For FLC
002160.09 - CAN Communication Lost For RJ1
002161.09 - CAN Communication Lost For RJ2
002162.09 - CAN Communication Lost For RJ3
002163.09 - CAN Communication Lost For RJ4
002165.09 - CAN Communication Lost For LJ1
002166.09 - CAN Communication Lost For LJ2
002167.09 - CAN Communication Lost For LJ3
002168.09 - CAN Communication Lost For LJ4
002213.09 - CAN Communication Lost For HVC
002263.03 - Ripper/Under Cab Auxiliary 1 A Short to Power
002263.04 - Ripper/Under Cab Auxiliary 1 A Open or Short to Ground
002263.15 - Draft Frame Auxiliary Valve 1 Circuit Fault
002263.17 - Draft Frame Auxiliary Valve 1 Circuit Fault
002264.03 - Ripper/Under Cab Auxiliary 1 B Short to Power
002264.04 - Ripper/Under Cab Auxiliary 1 B Open or Short to Ground
002264.15 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002264.17 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002275.03 - Under Cab Auxiliary 2 A Short to Power
002275.04 - Under Cab Auxiliary 2 A Open or Short to Ground
002275.15 - Under Cab Auxiliary Valve 2 Warm Up Circuit Fault
002275.17 - Under Cab Auxiliary Valve 2 Warm Up Circuit Fault
002276.03 - Under Cab Auxiliary 2 B Short to Power
002276.04 - Under Cab Auxiliary 2 B Open or Short to Ground
002276.15 - Under Cab Auxiliary Valve 2 Warm Up Circuit Fault
002276.17 - Under Cab Auxiliary Valve 2 Warm Up Circuit Fault
002287.03 - Under Cab Auxiliary 3 A Short to Power
002287.04 - Under Cab Auxiliary 3 A Open or Short to Ground
002287.15 - Under Cab Auxiliary Valve 3 Warm Up Circuit Fault
002287.17 - Under Cab Auxiliary Valve 3 Warm Up Circuit Fault
002288.03 - Under Cab Auxiliary 3 B Short to Power
002288.04 - Under Cab Auxiliary 3 B Open or Short to Ground
002288.15 - Under Cab Auxiliary Valve 3 Warm Up Circuit Fault
002288.17 - Under Cab Auxiliary Valve 3 Warm Up Circuit Fault
002299.03 - Draft Frame Auxiliary 1 A Short to Power
002299.04 - Draft Frame Auxiliary 1 A Open or Short to Ground
002299.15 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002299.17 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002300.03 - Draft Frame Auxiliary 1 B Short to Power
002300.04 - Draft Frame Auxiliary 1 B Open or Short to Ground
002300.15 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002300.17 - Under Cab Auxiliary Valve 1 Warm Up Circuit Fault
002311.03 - Draft Frame Auxiliary 2 A Short to Power
002311.04 - Draft Frame Auxiliary 2 A Open or Short to Ground
002311.15 - Draft Frame Auxiliary Valve 2 Warm Up Circuit Fault
002311.17 - Draft Frame Auxiliary Valve 2 Warm Up Circuit Fault
002312.03 - Draft Frame Auxiliary 2 B Short to Power
002312.04 - Draft Frame Auxiliary 2 B Open or Short to Ground
002312.15 - Draft Frame Auxiliary Valve 2 Warm Up Circuit Fault
002312.17 - Draft Frame Auxiliary Valve 2 Warm Up Circuit Fault
002323.03 - Draft Frame Auxiliary 3 A Short to Power
002323.04 - Draft Frame Auxiliary 3 A Open or Short to Ground
002323.15 - Draft Frame Auxiliary Valve 3 Warm Up Circuit Fault
002323.17 - Draft Frame Auxiliary Valve 3 Warm Up Circuit Fault
002324.03 - Draft Frame Auxiliary 3 B Short to Power
002324.04 - Draft Frame Auxiliary 3 B Open or Short to Ground
002324.15 - Draft Frame Auxiliary Valve 3 Warm Up Circuit Fault
002324.17 - Draft Frame Auxiliary Valve 3 Warm Up Circuit Fault
004528.03 - Right Auxiliary X Axis 2 Short to Power
004528.04 - Right Auxiliary X Axis 2 Short to Ground
004531.03 - Right Auxiliary X Axis Short to Power
004531.04 - Right Auxiliary X Axis Short to Ground
004531.13 - Right Auxiliary X Axis Redundance Mismatch
004532.03 - Right Auxiliary Y Axis 2 Short to Power
004532.04 - Right Auxiliary Y Axis 2 Short to Ground
004535.03 - Right Auxiliary Y Axis Short to Power
004535.04 - Right Auxiliary Y Axis Short to Ground
004535.13 - Right Auxiliary Y Axis Redundance Mismatch
004539.04 - Right Auxiliary 2 Switch Short to Ground
004540.03 - Right Blade Lift Float Switch Short to Power (Stuck On)
004540.04 - Right Blade Lift Float Switch Short to Ground
004541.03 - Right Auxiliary 1 Switch Short to Power (Stuck On)
004541.04 - Right Auxiliary 1 Switch Short to Ground
004713.03 - Left Auxiliary X Axis Short to Power 2
004713.04 - Left Auxiliary X Axis Short to Ground 2
004716.03 - Left Auxiliary X Axis Short to Power
004716.04 - Left Auxiliary X Axis Short to Ground
004716.13 - Left Auxiliary X Axis Redundance Mismatch
004717.03 - Left Auxiliary Y Axis 2 Short to Power
004717.04 - Left Auxiliary Y Axis 2 Short to Ground
004720.03 - Left Auxiliary Y Axis Short to Power
004720.04 - Left Auxiliary Y Axis Short to Ground
004720.13 - Left Auxiliary Y Axis Redundance Mismatch
004724.03 - Left Auxiliary 2 Switch Short to Power (Stuck On)
004724.04 - Left Auxiliary 2 Switch Short to Ground
004725.03 - Left Blade Lift Float Switch Short to Power (Stuck On)
004725.04 - Left Blade Lift Float Switch Short to Ground
004726.03 - Left Auxiliary 1 Switch Short to Power (Stuck On)
004726.04 - Left Auxiliary 1 Switch Short to Ground
516292.05 - Under Cab End Plate Warm-Up Open Circuit
516292.06 - Under Cab End Plate Warm-Up High Current
516300.05 - Draft Frame End Plate Warm-Up Open Circuit
516300.06 - Draft Frame End Plate Warm-Up High Current
Group 70: OC3 Diagnostic Trouble Codes
000629.12 - SSM Watchdog Time Out
002033.09 - CAN Communication Lost For FLC
002634.04 - Ignition Relay Output Short to Ground
002634.05 - Ignition Relay Output Open
520752.04 - Heated Mirror Button Stuck
520752.09 - Heated Mirror Button Missing CAN Status Message
520753.04 - Rear Defrost Button Stuck
520753.09 - Rear Defrost Button Missing CAN Message
520754.04 - Lower Washer Button Stuck
520754.09 - Lower Washer Button Missing CAN Status Message
520755.04 - Lower Wiper Button Stuck
520755.09 - Lower Wiper Button Missing CAN Status Message
523335.04 - Rear Wiper Button Stuck
523335.09 - Rear Wiper Button Missing CAN Status Message
523336.04 - Rear Washer Button Stuck
523336.09 - Rear Washer Button Missing CAN Status Message
523338.04 - Auto Blade Button Stuck
523338.09 - Auto Blade Button Missing CAN Status Message
523339.04 - Auto Differential Lock Button Stuck
523339.09 - Auto Differential Lock Button Missing CAN Status Message
523340.04 - Auto Shift Button Stuck
523340.09 - Auto Shift Button Missing CAN Status Message
523849.04 - Air Conditioning/Defrost Button Stuck
523849.09 - Air Conditioning/Defrost Button Missing CAN Status Message
523850.04 - Front Wiper Button Stuck
523850.09 - Front Wiper Button Missing CAN Status Message
523852.04 - Front Washer Button Stuck
523852.09 - Front Washer Button Missing CAN Status Message
523854.04 - Right Cab Work Lights Button Stuck
523854.09 - Right Cab Work Lights Button Missing CAN Status Message
523855.04 - Cab Corner Work Lights Button Stuck
523855.09 - Cab Corner Work Lights Button Missing CAN Status Message
523856.04 - Spare Button Stuck
523856.09 - Spare Button Missing CAN Status Message
523857.04 - Drive Marker Light Button Stuck
523857.09 - Drive Marker Light Button Missing CAN Status Message
523858.04 - Frame Work Light Button Stuck
523858.09 - Frame Work Light Button Missing CAN Status Message
523860.04 - Cab Front Work Lights Button Stuck
523860.09 - Cab Front Work Lights Button Missing CAN Status Message
523861.04 - Lever Steering Button Stuck
523861.09 - Lost Lever Steering LED Message
523862.04 - Saddle Lock Pin Button Stuck
523862.09 - Saddle Lock Pin Button Missing CAN Status Message
523863.04 - Hydraulic Enable Button Stuck
523863.09 - Hydraulic Enable Button Missing CAN Status Message
523864.04 - Hazard Button Stuck
523864.09 - Hazard Button Missing CAN Status Message
523865.04 - Beacon Light Button Stuck
523865.09 - Beacon Light Button Missing CAN Status Message
523867.04 - Stop Button Stuck
523867.09 - Stop Button Missing CAN Status Message
523868.04 - Start Button Stuck
523868.09 - Start Button Missing CAN Status Message
Group 80: HWD Diagnostic Trouble Codes
000598.04 - Bottom of Inching Pedal Short To Ground
000611.02 - Left Pump Neutral Out of Adjustment
000611.06 - No Left Motor Speed During Calibration
000611.07 - No Left Motor Speed During Warm Up
000611.11 - Unable to Calibrate Left Forward Gears 1—4
000612.02 - Right Pump Neutral Out of Adjustment
000612.06 - No Right Motor Speed During Calibration
000612.07 - No Right Motor Speed During Warm Up
000612.11 - Unable to Calibrate Right Forward Gears 1—4
000613.11 - Unable to Calibrate Left Reverse Gears 1—4
000614.07 - Left High/Low Solenoid Off During Calibration
000614.11 - Unable to Calibrate Right Reverse Gears 1—4
000615.07 - Right High/Low Solenoid Off During Calibration
001592.00 - Six Wheel Drive Left Motor Overspeed
001593.00 - Six Wheel Drive Right Motor Overspeed
002000.09 - CAN Communication Lost For ECU
002003.09 - CAN Communication Lost From Transmission Control Unit (TCU)
002033.09 - CAN Communication Lost For FLC
002538.31 - Transmission Control Unit (TCU) Not Allowing Precision Mode
002612.04 - Six Wheel Drive On/Off Switch Short To Ground
522447.04 - Right Forward Brake Solenoid Short To Ground
522447.05 - Right Forward Brake Solenoid Open Circuit
522448.04 - Right Reverse Brake Solenoid Short To Ground
522448.05 - Right Reverse Brake Solenoid Open Circuit
522449.04 - Left Reverse Brake Solenoid Short To Ground
522449.05 - Left Reverse Brake Solenoid Open Circuit
522450.04 - Left Forward Brake Solenoid Short To Ground
522450.05 - Left Forward Brake Solenoid Open Circuit
522507.03 - Calibration Power After Power-up
522507.04 - Six Wheel Drive Calibration Input Short To Ground
523216.05 - No Voltage To Valve Power 4
523217.05 - No Voltage To Valve Power 5
523218.05 - No Voltage To Valve Power 2
523219.05 - No Voltage To Valve Power 1
523678.03 - Right Drive Pump Reverse Solenoid Short To Power
523678.05 - Right Drive Pump Reverse Solenoid Open Circuit
523679.03 - Left Drive Pump Reverse Solenoid Short To Power
523679.05 - Left Drive Pump Reverse Solenoid Open Circuit
523680.03 - Left Drive Pump Forward Solenoid Short To Power
523680.05 - Left Drive Pump Forward Solenoid Open Circuit
523681.03 - Right Drive Pump Forward Solenoid Short To Power
523681.05 - Right Drive Pump Forward Solenoid Open Circuit
523856.05 - Precision Speed Switch Open Circuit
523857.04 - Precision Mode Short To Ground
523858.04 - Inching Mode Short To Ground
523860.05 - Aggressiveness Switch Open Circuit
523861.04 - Aggressiveness Switch A Short To Ground
523862.04 - Aggressiveness Switch B Short To Ground
523863.04 - Aggressiveness Switch C Short To Ground
523864.04 - Aggressiveness Switch D Short To Ground
524073.04 - Left High/Low Solenoid Short To Ground
524073.05 - Left High/Low Solenoid Open Circuit
524074.04 - Right High/Low Solenoid Short To Ground
524074.05 - Right High/Low Solenoid Open Circuit
524075.03 - Flex Load Controller (FLC) Enable Signal Stuck On
524075.05 - Flex Load Controller (FLC) Enable Signal Stuck Off
524083.01 - Six Wheel Drive Charge Pressure Low
524083.03 - Six Wheel Drive Charge Pressure Switch Short To Power
524084.00 - Six Wheel Drive Loop Oil Temperature High
524084.04 - Six Wheel Drive Loop Oil Temperature Short To Ground
524089.03 - Left Loop Pressure Sensor Short To Power
524089.04 - Left Loop Pressure Sensor Short To Ground
524090.03 - Right Loop Pressure Sensor Short To Power
524090.04 - Right Loop Pressure Sensor Short To Ground
524160.04 - Not Neutral Switch Short To Ground
Group 90: LJ1 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 100: LJ2 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 110: LJ3 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 120: LJ4 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 130: RJ1 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 140: RJ2 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 150: RJ3 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Group 160: RJ4 Diagnostic Trouble Codes
002697.13 - JS Out of Calibration
002697.14 - JS Redundant Sense Failure
002698.13 - JS Out of Calibration
002698.14 - JS Redundant Sense Failure
Section 9005: Operational Checkout Procedure
Group 10: Operational Checkout Procedure
Operational Checkout
Section 9010: Engine
Group 05: Theory of Operation
John Deere Engine
Exhaust Aftertreatment
Cold Start Aid—If Equipped
Soft Start
Group 15: Diagnostic Information
John Deere Engine
Engine Cranks/Won't Start
Engine Misfires/Runs Irregularly
Engine Does Not Develop Full Power
Engine Emits Excessive White Exhaust Smoke
Engine Emits Excessive Black or Gray Exhaust Smoke
Engine Will Not Crank
Engine Idles Poorly
Abnormal Engine Noise
Fuel Supply System Check
Excessive Fuel Consumption
Fuel in Oil
Engine Sampling Port Location
Engine Cooling System Component Location
Engine Fuel System Component Location
Engine Intake and Exhaust Component Location
Group 20: Adjustments
John Deere Engine
Service Filter Cleaning
Group 25: Tests
John Deere Engine
Fluid Sampling Procedure
Engine Slow and Fast Idle Speed Check
Radiator Temperature Differential Test
Exhaust Emissions Test Point
Section 9015: Electrical System
Group 05: System Information
Electrical Diagram Information
Electrical Schematic Symbols
Group 10: System Diagrams
Fuse and Relay Specifications
System Functional Schematic, Wiring Diagram and Component Location Master Legend
System Functional Schematic
Power and Ground Cables Component Location
Power and Ground Cables Wiring Diagram
Front 6WD Harness (W10) Component Location
Front 6WD Harness (W10) Wiring Diagram
Heater and Air Conditioner Harness (W12) Component Location
Heater and Air Conditioner Harness (W12) Wiring Diagram
Radio Harness (W13) Component Location
Radio Harness (W13) Wiring Diagram
Cab Roof Harness (W14) Component Location
Cab Roof Harness (W14) Wiring Diagram
Cab Interior Harness (W15) Component Location—6WD
Cab Interior Harness (W15) Wiring Diagram—6WD
Cab Interior Harness (W16) Component Location—Non 6WD
Cab Interior Harness (W16) Wiring Diagram—Non 6WD
Front Motor Speed Sensor Harnesses (W17 and W18) Component Location—6WD
Front Motor Speed Sensor Harnesses (W17 and W18) Wiring Diagram—6WD
Blade Impact Harness (W19) Component Location—If Equipped
Blade Impact Harness (W19) Wiring Diagram—If Equipped
Drive and Turn Lights Harnesses (W22 and W23) Component Location
Drive and Turn Lights Harnesses (W22 and W23) Wiring Diagram
Steering Angle Sensor Harness (W24) Component Location—6WD
Steering Angle Sensor Harness (W24) Wiring Diagram—6WD
Front Platform Harness (W25) Component Location
Front Platform Harness (W25) Wiring Diagram
Rear Platform Harness (W26) Component Location
Rear Platform Harness (W26) Wiring Diagram
Rear Camera Harness (W27) Component Location—If Equipped
Rear Camera Harness (W27) Wiring Diagram
Fan Door Harness (W31) Component Location
Fan Door Harness (W31) Wiring Diagram
Midstructure Harness (W34) Component Location
Midstructure Harness (W34) Wiring Diagram
Transmission Harness (W35) Component Location
Transmission Harness (W35) Wiring Diagram
Tilt Console Harness (W36) Component Location
Tilt Console Harness (W36) Wiring Diagram
Electrohydraulic (EH) Main Cab Harness (W38) Component Location
Electrohydraulic (EH) Main Cab Harness (W38) Wiring Diagram
Electrohydraulic (EH) Main Frame Harness (W39) Component Location
Electrohydraulic (EH) Main Frame Harness (W39) Wiring Diagram
Electrohydraulic (EH) Draft Frame Harness (W40) Component Location
Electrohydraulic (EH) Draft Frame Harness (W40) Wiring Diagram
Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Component Location
Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Wiring Diagram
Electrohydraulic (EH) Armrest Interlock Harnesses (W46 and W47) Component Location
Electrohydraulic (EH) Armrest Interlock Harnesses (W46 and W47) Wiring Diagram
Electrohydraulic (EH) Integrated Grade Control (IGC) Harnesses (W48 and W49) Component Location
Electrohydraulic (EH) Integrated Grade Control (IGC) Harnesses (W48 and W49) Wiring Diagram
Engine Interface Harness (W50) Component Location
Engine Interface Harness (W50) Wiring Diagram
Engine Harness (W51) Component Location
Engine Harness (W51) Wiring Diagram
Low Pressure Fuel System Harness (W52) Component Location
Low Pressure Fuel System Harness (W52) Wiring Diagram
Exhaust Aftertreatment Harness (W53) Component Location
Exhaust Aftertreatment Harness (W53) Wiring Diagram
Rear View Camera Display Harness (W67) Component Location
Rear View Camera Display Harness (W67) Wiring Diagram
JDLink™ Harnesses (W6002 and W6003) Component Location—If Equipped
JDLink™ Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram—If Equipped
JDLink™ Satellite (SAT) Harness (W6003) Wiring Diagram—If Equipped
Group 15: Sub-System Diagnostics
Controller Area Network (CAN) Theory of Operation
Start and Charge Circuits Theory of Operation
Park Brake Circuit Theory of Operation
Advanced Display Unit (ADU) and Sealed Switch Module (SSM) Circuits Theory of Operation
Engine Control Unit (ECU) Circuit Theory of Operation
Exhaust Aftertreatment Circuit Theory of Operation
Transmission Control Unit (TCU) Circuit Theory of Operation
Hydraulic Valve Controller (HVC) Circuit Theory of Operation
Auxiliary Valve Controller (AVC) Circuit Theory of Operation
Six Wheel Drive (6WD) Controller Circuit Theory of Operation
Flex Load Controller (FLC) Circuit Theory of Operation
Hydraulic Fan Speed and Fan Reversing Circuits Theory of Operation
Differential Lock Circuit Theory of Operation
Saddle Lock Circuit Theory of Operation
Drive Lights, Marker Lights, Hazards, and Turn Lights Circuits Theory of Operation
Work Lights Circuit Theory of Operation
Brake Lights and Brake Accumulator Pressure Warning Circuit Theory of Operation
Backup Lights Circuit Theory of Operation—IF Equipped
Beacon Light Circuit Theory of Operation—If Equipped
Wipers and Washers Circuits Theory of Operation
Rear Window Defog and Heated Side Mirrors Circuits Theory of Operation
Air Conditioner, Heater, and Precleaner Circuits Theory of Operation
JDLink™ Circuit Theory of Operation
Group 16: Monitor Operation
Advanced Display Unit (ADU)—Service Mode
Advanced Display Unit (ADU)—Clear Codes
Advanced Display Unit (ADU)—Show/Hide Main Menu
Advanced Display Unit (ADU)—Enable Options
Advanced Display Unit (ADU)—Tire Size
Advanced Display Unit (ADU)—Fan Speed
Advanced Display Unit (ADU)—Articulation Calibration
Advanced Display Unit (ADU)—Steering Cal
Advanced Display Unit (ADU)—GP Auxiliary Valve Flows
Advanced Display Unit (ADU)—GP Auxiliary Control Setup
Advanced Display Unit (ADU)—Exhaust Filter Service
Advanced Display Unit (ADU)—Exhaust Filter Auto Cleaning Setting
Group 20: References
Flex Load Controller (FLC) Outputs
Service ADVISOR™ Application
Service ADVISOR™ Connection Procedure
Reading Diagnostic Trouble Codes (DTC) With Service ADVISOR™ Application
Intermittent Diagnostic Trouble Code (DTC) Diagnostics
Cross Slope Diagnostics
JDLink™ Connection Procedure—If Equipped
Transmission Control Unit (TCU) Calibration
6WD Controller Calibration (If Equipped)
CAN Circuit Testing
Electrical Component Specifications
Alternator Test
Transmission Control and Park Brake Lever Test
Park/Neutral/Gear Position Switch Module and Forward/Reverse Switch Module Test
Output Shaft Speed Sensor Test
Inching Pedal Module Test
Accelerator Pedal Sensor Test
Hydraulic Pump Pressure Sensor Test
Hydraulic Fan Speed Sensor Test
Lower Windshield Wiper Proximity Switch Adjustment and Installation
Electrical Component Checks
Articulation Sensor Linkage Adjustment (Rear Steer)
Electrohydraulic Valve Calibration Procedure
Articulation Sensor Calibration Procedure
Steering Angle Sensor Calibration Procedure
Park/Neutral/Gear Position Switch Module and Forward/Reverse Switch Module Remove and Install
Controller Remove and Install
Steering Angle Sensor Remove and Install
Connector Terminal Test
Replace Weather Pack™ Connector
Install Weather Pack™ Contact
Replace DEUTSCH® Connectors
Replace DEUTSCH DEUTSCH is a trademark of Deutsch Co. Rectangular or Triangular Connectors
Install DEUTSCH® Contact
Replace (Pull Type) Metri-Pack™ Connectors
Replace (Push Type) Metri-Pack™ Connectors
Replace CINCH CINCH is a trademark of the Cinch Co. Connectors
Install CINCH CINCH is a trademark of the Cinch Co. Contact
Repair 32 and 48 Way CINCH CINCH is a trademark of the Cinch Co. Connectors
Section 9016: Six Wheel Drive (6WD)
Group 05: Theory of Operation
6WD System Operation
6WD Pump and Displacement Control Operation
6WD Forward Operation
6WD Pump and Motor Flushing Pump Operation
6WD Charge Circuit Operation
Flushing Valve and Operating Charge Pressure Regulating Valve Operation
6WD Circuit Relief and Make-Up Valve Operation
6WD Engagement Manifold Operation
6WD Motor Operation
6WD Wheel Operation
6WD Precision Mode Operation
6WD Inching Mode Operation
Group 15: Diagnostic Information
6WD System Schematic
6WD System Component Location
No Front Wheel Motion (Both Wheels)
No Front Wheel Motion During Inching Operation (Both Wheels)
No Front Wheel Motion (One Wheel)
Intermittent or Erratic 6WD Operation
6WD Charge Pressure Indicator Light On
Hydraulic Oil Filter
Hydraulic Oil Temperature Indicator Light On
6WD System Oil Temperature Too Hot (6WD oil temperature indicator light on)
Low Torque (One Wheel)
Low Torque (Both Wheels)
Wheel Overspeed (One Wheel)
Operates in Low Speed Only (One Wheel)
Operates in High Speed Only (One Wheel)
Wheel(s) Will Not Stay in Neutral
Operates in One Direction Only
Wheels Rotate Opposite Each Other
6WD Will Not Calibrate (No Diagnostic Trouble Codes)
Group 20: Adjustments
6WD Start-Up Procedure
6WD Pump Control Neutral Adjustment
Group 25: Tests
Avoid High-Pressure Fluids
6WD Oil Warm-Up Procedure
6WD Planetary Brake Leakage Test
6WD Neutral Charge Pressure Test
6WD Neutral Charge Pressure Regulating Valve Test
6WD Operating Charge Pressure Regulating Valve Test
6WD Neutral Charge Pressure Balance Test
6WD Motor Leakage Test
Pressure Override Valve and 6WD Circuit Relief and Make-Up Valve Test
6WD Motor Flushing Pump Relief Valve Test
6WD Charge Pump Flow Test
6WD Engagement Solenoid Valve Test
Hydraulic Oil Cooler Bypass Valve Pressure Test
Section 9020: Power Train
Group 05: Theory of Operation
DF180 Powershift Transmission Operation
Differential Lock Operation
Internal Park Brake Operation
Rear Axle and Tandem Operation
Group 15: Diagnostic Information
Power Train Schematic
Power Train Component Location
Transmission Overfills With Oil
Transmission Slippage
Machine “Jumps” When Inching Pedal Engaged
Machine Lacks Power Or Moves Slow
Transmission Shifts Too Slow (Machine Stops When Changing Gears Under Load)
Transmission Shifts Too Quickly
Machine Will Not Move In Any Gear and Park Brake Indicator Light Is On (No Load Put On Engine When Shifted Into Gear)
Machine Will Not Move (Load Put On Engine Or Engine Stalls When Shifted Into Gear)
Low Pressure In Different Gears Using Same Proportional Solenoid Valve
Machine Creeps In Neutral (Load Put On Engine When Service Brakes Are Applied)
Machine Creeps In Gear With Inching Pedal Fully Depressed
Transmission System Overheats
Transmission Control and Park Brake Lever Does Not Move Freely
Excessive Transmission Noise (Under Load or No Load)
Transmission Engages In a Gear, but Not Gear Selected
Transmission Fails To Change Gear From First Gear Selected
Transmission Faults To Neutral
Excessive Machine Vibration
Erratic Transmission Oil Pressure
Excessive Oil Pressure
Low Oil Pressure In All Gears
Low Pressure In One Gear But Correct In Other Gears
Transmission Breather Oil Leakage
Filter Or Filter Oil Lines Blow Out
Low Lube Pressure In Some Gears But Correct In Other Gears
Excessive Lube Pressure In Some Gears But Correct In Other Gears
Low Transmission Cooler Inlet Pressure And Lube Pressure
Park Brake Engages While Vehicle Is Moving
Park Brake Will Not Release
Park Brake Will Not Hold
Park Brake Overheats
Park Brake Noisy
No Differential Lock Operation
Differential Lock Slippage
Excessive Differential and/or Axle Noise
Group 25: Tests
Differential Oil Warm-Up Procedure
Differential Lock Valve Pressure Test
Differential Oil Cooler Flow Test
Differential Oil Cooler Relief Valve Pressure Test
Park Brake Release Pressure Test
Section 9025: Hydraulic System
Group 05: Theory of Operation
Hydraulic System Operation
Hydraulic Pump Operation
Hydraulic Fan Pump Operation
Hydraulic System Manifold Operation
Control Valve Operation—Standard Controls
Control Valve Operation—EH Controls
Hydraulic Oil Filter Operation
System Relief Valve Operation
Circuit Relief Valve Operation
Service Brake Valve Operation
Service Brake Accumulator Operation
Hydraulic Fan Drive Operation
Steering System Operation
Steering System Operation—EH Controls
Load Sense Operation With All Functions in Neutral
Load Sense Operation With One Function Activated
Load Sense Operation With Multiple Functions Activated
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, and Blade Side Shift Valve Operation
Circle Rotate Valve Operation
Saddle Locking Pin Valve Operation
Blade Lift and Auxiliary Valve Operation
Blade Impact Absorption System Operation
Circle Drive Gearbox Operation-Without Slip Clutch
Circle Drive Gearbox Operation-With Slip Clutch
Dual Input Circle Drive Gearbox Operation—If Equipped
Dual Input Circle Drive Gearbox (With Slip Clutch) Operation—If Equipped
Group 15: Diagnostic Information
Hydraulic System Schematic
Hydraulic System Schematic—EH Controls
Hydraulic System Component Location
Hydraulic System Component Location—EH Controls
No Hydraulics
Hydraulic System Overheats
Slow Hydraulic Functions
Hydraulic Function (or Pump) Makes “Chattering” Noise
Pump Appears To Be Stuck At Minimum Displacement
Pump Appears To Be Stuck At Maximum Displacement
Function Moves Too Fast
Function Drifts Down
Excessive Effort to Move Function Control Lever
Individual Function Is Slow (Cycle Time Checked Slow)
Slow or Hard Steering
No Steering
Erratic Steering
Excessive Steering Wheel Turns to Steer Machine
Wheels Move After Steering Wheel Stopped
Excessive Vibration of Steering Wheel
Steering Wheel Kickback
Poor or No Brakes (Steering and Hydraulic System Operation Normal)
Aggressive Brakes or Brakes Lock Up
Brakes Drag
Brakes Chatter or Noisy
Delay in Braking
Hydraulic Fan Does Not Reach Full Speed
Hydraulic Fan Runs At Full Speed Only
Hydraulic Fan Does Not Spin
Hydraulic Fan Will Not Reverse Direction
Group 25: Tests
Hydraulic Test Port Location
JT02156A Digital Pressure/Temperature Analyzer Kit Installation
JT07148 Digital Hydraulic Flowmeter Tester
Hydraulic Oil Warm-Up Procedure
Vacuum Pump Installation
Hydraulic Pump Standby Pressure & Load Sense Standby Pressure Test
Load Sense Relief Valve & Pump Relief Test
System Relief Valve Pressure Test
Load Sense Shuttle Valve Isolation Test—Standard Controls
Load Sense Shuttle Valve Isolation Test—EH Controls
Hydraulic Pump Leakage Test
Hydraulic Pump Flow Test
Service Brake Valve Pressure Test
Service Brake Accumulator Precharge Test
Service Brake Pressure Switch Test
Service Brake Valve Leakage Test
Hydraulic Cylinder Drift Test
Hydraulic Cylinder Leakage Test
Rotary Manifold Leakage Test
Steering System Leakage Test
Service Brake Accumulator Inlet Check Valve Leakage Test
Blade Impact Absorption Accumulator Charge Pressure Test
Blade Impact Absorption Accumulator Hydraulic Discharge Procedure
Secondary Steering Accumulator Charge Pressure Test
Blade Lift Relief Valve Test
Circuit Relief Valve Test—Midmount Scarifier
Saddle Locking Cylinder Pressure Reducing Valve Test
Hydraulic Fan Pump Pressure Test
Hydraulic Fan Pump Flow Test
Hydraulic Fan Pump Case Drain Test
Hydraulic Fan Motor Speed Test
Hydraulic Fan Pump Control Test and Adjustment
Hydraulic Fan Motor Case Drain Test
Section 9031: Heating and Air Conditioning
Group 05: Theory of Operation
Air Conditioning System Cycle Of Operation
Group 15: Diagnostic Information
Air Conditioner and Heater Component Location
Diagnose Air Conditioning System Malfunctions
Air Conditioning System Does Not Operate
Air Conditioner Does Not Cool Interior of Cab
Air Conditioner Runs Constantly, Too Cold
Diagnose Heater System Malfunctions
Heater System Does Not Operate
Heater Does Not Warm Interior of Cab
Interior Windows Continue to Fog
Group 25: Tests
Refrigerant Cautions and Proper Handling
Air Conditioner and Heater Operational Checks
Refrigerant Leak Test
R134a Oil Charge Capacity
R134a Refrigerant Charge Capacity
Air Conditioner Compressor Clutch Test
Air Conditioner High/Low Pressure Switch Test
Air Conditioner Freeze Control Switch Test
Heater Blower Switch Test
Heater Blower Switch Test
Heater Blower Motor Test
R134a Air Conditioning System Test
Operating Pressure Diagnostic Chart
John Deere Motor Graders 770G, 770GP, 772G, 772GP Operation & Test Service Manual (TM12139)
