Complete diagnostics test service manual with Electrical Wiring Diagrams for John Deere Motor Graders 770G, 770GP, 772G, and 772GP (FT4), with all the workshop information to maintain, diagnose, and service like professional mechanics.

John Deere Motor Graders 770G, 770GP, 772G, 772GP workshop Diagnosis and 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.

TM13026X19 - John Deere Motor Graders 770G, 770GP, 772G, 772GP Operation and Test Technical Manual.PDF
tm13026x28 - Niveleuses automotrices 770G, 770GP, 772G et 772GP.pdf

Total Pages: 2,132 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English French
Category: Operation and Test

MAIN SECTIONS (SN.F656526-678817)
  770G (PIN: 1DW770G***F656526-678817)
  770GP (PIN: 1DW770G***F656526-678817)
  772G (PIN: 1DW772G***F656526-678817)
  772GP (PIN: 1DW772G***F656526-678817)
  Foreword
   Manual Identification-READ THIS FIRST!
   General Information
      Safety
   Diagnostics
      TCU 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
      VC2 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
      Diagnostic Test Box
      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

tm13026x19 - 770G,770GP, 772G, and 772GP Motor Grader

Table of Contents

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

Avoid Static Electricity Risk When Refueling

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: TCU Diagnostic Trouble Codes

000177.00 - Transmission Oil Temperature High

000177.04 - Transmission Oil Temperature Sensor Circuit Fault

000525.02 - Undefined Gear

000525.12 - Undefined Gear

000619.06 - Brake Solenoid Circuit Fault

000628.12 - Control Unit Programming

000723.02 - Transmission Input Speed Fault

002000.02 - Communication System Fault

002000.09 - Communication System Message Missing

002003.09 - Communication System Message Missing

002033.02 - Communication System Fault

002033.09 - Communication System Message Missing

002034.09 - Communication System Message Missing

002040.09 - Communication System Message Missing

002160.09 - Communication System Message Missing

002161.09 - Communication System Message Missing

002162.09 - Communication System Message Missing

002163.09 - Communication System Message Missing

002165.09 - Communication System Message Missing

002166.09 - Communication System Message Missing

002167.09 - Communication System Message Missing

002168.09 - Communication System Message Missing

002213.09 - Communication System Message Missing

002225.09 - Communication System Message Missing

522252.00 - Clutch Pressure Too High

522252.01 - Clutch Pressure Too Low

522253.00 - Clutch Pressure Too High

522253.01 - Clutch Pressure Too Low

522254.00 - Clutch Pressure Too High

522254.01 - Clutch Pressure Too Low

522255.00 - Clutch Pressure Too High

522255.01 - Clutch Pressure Too Low

522256.00 - Clutch Pressure Too High

522256.01 - Clutch Pressure Too Low

522257.00 - Clutch Pressure Too High

522257.01 - Clutch Pressure Too Low

522258.00 - Clutch Pressure Too High

522258.01 - Clutch Pressure Too Low

522259.00 - Clutch Pressure Too High

522259.01 - Clutch Pressure Too Low

522397.04 - Not In Fwd Or Rev While In Gear

522398.12 - Park Switch Fault

522405.05 - Park Brake Pressure Switch Circuit Fault

522413.12 - Gear Bits Active In Park

522414.03 - Transmission Clutch D Solenoid Circuit Fault

522414.05 - Transmission Clutch D Solenoid Circuit Fault

522507.14 - Transmission Calibration Fault

522517.31 - Engine Stall Prevention Active

523655.03 - Forward And Reverse Switches Both Active

523699.31 - Transmission Speed Clutch Slipping

523700.00 - Inching Pedal Overuse

523700.16 - Inching Pedal Overuse

523700.31 - Transmission Clutch Slipping

523708.02 - Inching Pedal Circuit Fault

523712.31 - Transmission Calibration Fault

523717.31 - Transmission Calibration Fault

523718.31 - Transmission Calibration Fault

523720.00 - Clutch Fill Time Too Long

523720.01 - Clutch Fill Time Too Short

523721.00 - Clutch Fill Time Too Long

523721.01 - Clutch Fill Time Too Short

523722.00 - Clutch Fill Time Too Long

523722.01 - Clutch Fill Time Too Short

523723.00 - Clutch Fill Time Too Long

523723.01 - Clutch Fill Time Too Short

523724.00 - Clutch Fill Time Too Long

523724.01 - Clutch Fill Time Too Short

523725.00 - Clutch Fill Time Too Long

523725.01 - Clutch Fill Time Too Short

523726.00 - Clutch Fill Time Too Long

523726.01 - Clutch Fill Time Too Short

523727.00 - Clutch Fill Time Too Long

523727.01 - Clutch Fill Time Too Short

523728.31 - Transmission Calibration Fault

523729.31 - Transmission Calibration Fault

523730.31 - Transmission Calibration Fault

523731.31 - Transmission Calibration Fault

523732.31 - Transmission Calibration Fault

523733.31 - Transmission Calibration Fault

523734.31 - Transmission Calibration Fault

523735.04 - Valve Driver Supply Voltage Low

523736.14 - Transmission And Park Brake Lever Circuit Fault

523738.31 - Gear Selector Fault

523739.31 - Gear Selector Fault

523740.31 - Gear Selector Fault

523741.31 - Started In Gear

523742.31 - Gear Selector Fault

523747.14 - Park Switch Fault

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 Circuit Fault

523761.05 - Transmission Clutch Circuit Fault

523762.03 - Transmission Clutch Circuit Fault

523762.05 - Transmission Clutch Circuit Fault

523763.03 - Transmission Clutch Circuit Fault

523763.05 - Transmission Clutch Circuit Fault

523764.03 - Transmission Clutch Circuit Fault

523764.05 - Transmission Clutch Circuit Fault

524173.00 - Inching Pedal Circuit Fault

524173.01 - Inching Pedal Circuit Fault

524173.12 - Inching Pedal Circuit Fault

524271.03 - Transmission Clutch Circuit Fault

524271.05 - Transmission Clutch Circuit Fault

524272.03 - Transmission Clutch Circuit Fault

524272.05 - Transmission Clutch Circuit Fault

524273.03 - Transmission Clutch Circuit Fault

524273.05 - Transmission Clutch Circuit Fault

524275.31 - Gear Selector Fault

Group 20: ECU Diagnostic Trouble Codes

000029.03 - Decel Pedal Short To Power

000091.03 - Accel Pedal Short To Power

000091.04 - Accel Pedal Open Or Short

000111.01 - Coolant Level Extremely Low

000111.07 - Coolant Level Sensor Circuit Fault

000111.17 - Coolant Level Low

000111.18 - Coolant Level Very Low

000237.02 - Vehicle Identification Conflict

000237.13 - Vehicle Identification Fault

000237.31 - Communication Fault

001321.05 - Starter Relay Open Circuit

001321.06 - Starter Relay High Current

001321.16 - Too Long To Start

001321.31 - Starter Sol Open Circuit

002003.09 - CAN Comm Lost For TCU

002033.09 - CAN Comm Lost For FLC

003353.31 - Alternator Output Fault

003587.06 - Ether Starting Aid Circuit Fault

005004.06 - Softstart Solenoid Current High

524225.31 - Start Signal Missing

Group 30: ADU Diagnostic Trouble Codes

Advanced Display Unit (ADU) Diagnostic Trouble Codes

000158.03 - Switched Power Circuit Fault

000158.04 - Switched Power Circuit Fault

000168.03 - Unswitched Power Circuit Fault

000168.04 - Unswitched Power Circuit Fault

000442.00 - Monitor Temperature High

000442.01 - Monitor Temperature Low

001491.11 - Display Failure

003597.02 - Controller Power Supply Fault

003598.02 - Controller Power Supply Fault

003599.02 - Controller Power Supply Fault

523436.14 - Display Processor Error

523438.31 - Controller Memory Fault

523651.02 - Controller Memory Fault

523773.03 - Communication Circuit Fault

523773.04 - Communication Circuit Fault

523774.03 - Communication Circuit Fault

523774.04 - Communication Circuit Fault

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 Sensor Circuit Fault

000096.04 - Fuel Level Sensor Circuit Fault

000117.01 - Service Brake Pressure Low

000117.04 - Service Brake Accumulator Switch Circuit Fault

000167.03 - Switched Power Circuit Fault

000167.04 - Switched Power Circuit Fault

000168.03 - Unswitched Power Circuit Fault

000168.04 - Unswitched Power Circuit Fault

000237.02 - Vehicle Identification Fault

000237.13 - Vehicle Identification Fault

000237.31 - Vehicle Identification Fault

000628.12 - Control Unit Programming

000746.05 - Differential Lock Solenoid Circuit Fault

000746.06 - Differential Lock Solenoid Circuit Fault

000876.05 - A/C Compressor Clutch Circuit Fault

000876.06 - A/C Compressor Clutch Circuit Fault

000977.05 - Reversing Fan Solenoid Circuit Fault

000977.06 - Reversing Fan Solenoid Circuit Fault

001045.04 - Brake Light Switch Circuit Fault

001071.03 - Fan Speed Solenoid Circuit Fault

001071.04 - Fan Speed Solenoid Circuit Fault

001638.00 - Hydraulic Oil Temperature High

001638.03 - Hydraulic Oil Temperature Sensor Circuit Fault

001638.04 - Hydraulic Oil Temperature Sensor Circuit Fault

001639.00 - Hydraulic Fan Speed High

001639.09 - Hydraulic Fan Speed High

001639.16 - Hydraulic Fan Speed High

001639.18 - Hydraulic Fan Speed Low

001713.01 - Hydraulic Oil Filter Restricted

001713.03 - Hydraulic Oil Filter Restriction Switch Circuit Fault

001762.01 - Hydraulic Oil Pressure Low

001762.03 - Hydraulic Pressure Sensor Circuit Fault

001762.04 - Hydraulic Pressure Sensor Circuit Fault

002000.09 - Communication System Message Missing

002003.09 - Communication System Message Missing

002034.09 - Communication System Message Missing

002040.09 - Communication System Message Missing

002141.09 - Communication System Message Missing

002160.09 - Communication System Message Missing

002161.09 - Communication System Message Missing

002162.09 - Communication System Message Missing

002163.09 - Communication System Message Missing

002165.09 - Communication System Message Missing

002166.09 - Communication System Message Missing

002167.09 - Communication System Message Missing

002168.09 - Communication System Message Missing

002213.09 - Communication System Message Missing

002225.09 - Communication System Message Missing

002251.09 - Communication System Message Missing

002348.05 - Hi Beam Light Circuit Fault

002348.06 - Hi Beam Light Circuit Fault

002350.05 - Low Beam Light Circuit Fault

002350.06 - Low Beam Light Circuit Fault

002352.05 - Cab Front Work Light Circuit Fault

002352.06 - Cab Front Work Light Circuit Fault

002353.05 - Front Work Light Circuit Fault

002353.06 - Front Work Light Circuit Fault

002356.05 - Front Cab Corner Light Circuit Fault

002356.06 - Front Cab Corner Light Circuit Fault

002360.05 - Rear Work Light Circuit Fault

002360.06 - Rear Work Light Circuit Fault

002362.05 - Rear Cab Corner Light Circuit Fault

002362.06 - Rear Cab Corner Light Circuit Fault

002366.05 - Right Side Work Light Circuit Fault

002366.06 - Right Side Work Light Circuit Fault

002368.06 - Left Turn Light Circuit Fault

002370.06 - Right Turn Light Circuit Fault

002378.06 - Marker/Tail Light Circuit Fault

002386.06 - Rotary Beacon Circuit Fault

002642.05 - Left Heated Mirror Circuit Fault

002642.06 - Left Heated Mirror Circuit Fault

002874.04 - Hi Beam Switch Circuit Fault

002876.04 - Turn Signal Switch Circuit Fault

003318.03 - Blade Pitch Sensor Circuit Fault

003318.04 - Blade Pitch Sensor Circuit Fault

003319.03 - Slope Sensor Circuit Fault

003319.04 - Slope Sensor Circuit Fault

003331.03 - Circle Rotate Sensor Circuit Fault

003331.04 - Circle Rotate Sensor Circuit Fault

003510.03 - Sensor Supply 2 Circuit Fault

003510.04 - Sensor Supply 2 Circuit Fault

003511.03 - Sensor Supply 3 Circuit Fault

003511.04 - Sensor Supply 3 Circuit Fault

004026.05 - Right Heated Mirror Circuit Fault

004026.06 - Right Heated Mirror Circuit Fault

517064.01 - Hydrostatic Oil Filter Restricted

517064.03 - Hydrostatic Oil Filter Restriction Switch Circuit Fault

520450.03 - Saddle Lock Pin Switch Circuit Fault

521466.05 - Fan Direction/Relief Actuator Circuit Fault

521466.06 - Fan Direction/Relief Actuator Circuit Fault

521900.03 - Articulation Angle Sensor Circuit Fault

521900.04 - Articulation Angle Sensor Circuit Fault

522343.06 - Rear Window Defrost Relay Circuit Fault

522375.01 - Transmission Oil Filter Restricted

522375.03 - Transmission Oil Filter Restriction Switch Circuit Fault

522415.05 - Front Lower Washer Pump Circuit Fault

522415.06 - Front Lower Washer Pump Circuit Fault

522416.05 - Front Lower Wiper Hi Speed Circuit Fault

522416.06 - Front Lower Wiper Hi Speed Circuit Fault

522417.05 - Front Lower Wiper Park Circuit Fault

522418.05 - Front Lower Wiper Low Speed Circuit Fault

522418.06 - Front Lower Wiper Low Speed Circuit Fault

522426.05 - Rear Wiper Park Circuit Fault

522427.05 - Front Wiper Park Circuit Fault

522433.05 - Rear Wiper Low Speed Circuit Fault

522433.06 - Rear Wiper Low Speed Circuit Fault

522434.05 - Front Wiper Low Speed Circuit Fault

522434.06 - Front Wiper Low Speed Circuit Fault

522435.05 - Front Wiper Hi Speed Circuit Fault

522435.06 - Front Wiper Hi Speed Circuit Fault

522796.05 - Rear Washer Pump Circuit Fault

522796.06 - Rear Washer Pump Circuit Fault

522797.05 - Front Washer Pump Circuit Fault

522797.06 - Front Washer Pump Circuit Fault

523688.03 - Steering Angle Sensor Circuit Fault

523688.04 - Steering Angle Sensor Circuit Fault

523689.04 - Diff Lock Switch Circuit Fault

523901.04 - Front Left Window Switch Circuit Fault

524044.01 - Axle Oil Filter Restricted

524044.03 - Axle Oil Filter Restriction Switch Circuit Fault

Group 50: HVC Diagnostic Trouble Codes

000583.03 - Mainfall Sensor Circuit Fault

000583.04 - Mainfall Sensor Circuit Fault

000628.12 - Control Unit Programming

001503.04 - Left Armrest Position Circuit Fault

001503.13 - Left Armrest Position Circuit Fault

001565.04 - Left Armrest Down Switch Circuit Fault

001566.04 - Right Armrest Down Switch Circuit Fault

001899.03 - Circle Side Shift Valve Circuit Fault

001899.04 - Circle Side Shift Valve Circuit Fault

001900.03 - Circle Side Shift Valve Circuit Fault

001900.04 - Circle Side Shift Valve Circuit Fault

001911.03 - Wheel Lean Valve Circuit Fault

001911.04 - Wheel Lean Valve Circuit Fault

001912.03 - Wheel Lean Valve Circuit Fault

001912.04 - Wheel Lean Valve Circuit Fault

001923.03 - Right Blade Lift Valve Circuit Fault

001923.04 - Right Blade Lift Valve Circuit Fault

001924.03 - Right Blade Lift Valve Circuit Fault

001924.04 - Right Blade Lift Valve Circuit Fault

001935.03 - Articulation Valve Circuit Fault

001935.04 - Articulation Valve Circuit Fault

001936.03 - Articulation Valve Circuit Fault

001936.04 - Articulation Valve Circuit Fault

001947.03 - Circle Rotate Valve Circuit Fault

001947.04 - Circle Rotate Valve Circuit Fault

001948.03 - Circle Rotate Valve Circuit Fault

001948.04 - Circle Rotate Valve Circuit Fault

001959.03 - Blade Side Shift Valve Circuit Fault

001959.04 - Blade Side Shift Valve Circuit Fault

001960.03 - Blade Side Shift Valve Circuit Fault

001960.04 - Blade Side Shift Valve Circuit Fault

001971.03 - Left Blade Lift Valve Circuit Fault

001971.04 - Left Blade Lift Valve Circuit Fault

001972.03 - Left Blade Lift Valve Circuit Fault

001972.04 - Left Blade Lift Valve Circuit Fault

002000.09 - Communication System Message Missing

002003.09 - Communication System Message Missing

002033.09 - Communication System Message Missing

002034.09 - Communication System Message Missing

002160.09 - Communication System Message Missing

002161.09 - Communication System Message Missing

002162.09 - Communication System Message Missing

002163.09 - Communication System Message Missing

002165.09 - Communication System Message Missing

002166.09 - Communication System Message Missing

002167.09 - Communication System Message Missing

002168.09 - Communication System Message Missing

005493.04 - Right Armrest Position Circuit Fault

005493.13 - Right Armrest Position Circuit Fault

520752.04 - Return to Straight Switch 1 Circuit Fault

520753.04 - Return to Straight Switch 2 Circuit Fault

520754.04 - Return to Straight Switch 3 Circuit Fault

520755.04 - Return to Straight Switch 4 Circuit Fault

523849.13 - Return to Straight Module Circuit Fault

Group 60: AVC Diagnostic Trouble Codes

000628.12 - Control Unit Programing

001995.03 - Blade Pitch Valve Circit Fault

001995.04 - Blade Pitch Valve Circit Fault

001996.03 - Blade Pitch Valve Circit Fault

001996.04 - Blade Pitch Valve Circit Fault

002000.09 - Communication System Message Missing

002003.09 - Communication System Message Missing

002033.09 - Communication System Message Missing

002160.09 - Communication System Message Missing

002161.09 - Communication System Message Missing

002162.09 - Communication System Message Missing

002163.09 - Communication System Message Missing

002165.09 - Communication System Message Missing

002166.09 - Communication System Message Missing

002167.09 - Communication System Message Missing

002168.09 - Communication System Message Missing

002213.09 - Communication System Message Missing

002263.03 - Draft Frame Auxilliary Valve 1 Circuit Fault

002263.04 - Draft Frame Auxilliary Valve 1 Circuit Fault

002264.03 - Draft Frame Auxilliary Valve 1 Circuit Fault

002264.04 - Draft Frame Auxilliary Valve 1 Circuit Fault

002275.03 - Under Cab Auxilliary Valve 2 Circuit Fault

002275.04 - Under Cab Auxilliary Valve 2 Circuit Fault

002276.03 - Under Cab Auxilliary Valve 2 Circuit Fault

002276.04 - Under Cab Auxilliary Valve 2 Circuit Fault

002287.03 - Under Cab Auxilliary Valve 3 Circuit Fault

002287.04 - Under Cab Auxilliary Valve 3 Circuit Fault

002288.03 - Under Cab Auxilliary Valve 3 Circuit Fault

002288.04 - Under Cab Auxilliary Valve 3 Circuit Fault

002299.03 - Under Cab Auxilliary Valve 1 Circuit Fault

002299.04 - Under Cab Auxilliary Valve 1 Circuit Fault

002300.03 - Under Cab Auxilliary Valve 1 Circuit Fault

002300.04 - Under Cab Auxilliary Valve 1 Circuit Fault

002311.03 - Draft Frame Auxilliary Valve 2 Circuit Fault

002311.04 - Draft Frame Auxilliary Valve 2 Circuit Fault

002312.03 - Draft Frame Auxilliary Valve 2 Circuit Fault

002312.04 - Draft Frame Auxilliary Valve 2 Circuit Fault

002323.03 - Draft Frame Auxilliary Valve 3 Circuit Fault

002323.04 - Draft Frame Auxilliary Valve 3 Circuit Fault

002324.03 - Draft Frame Auxilliary Valve 3 Circuit Fault

002324.04 - Draft Frame Auxilliary Valve 3 Circuit Fault

003510.03 - Sensor Supply Circuit Fault

003510.04 - Sensor Supply Circuit Fault

004528.03 - Right Auxiliary Joystick X Axis 2 Circuit Fault

004528.04 - Right Auxiliary Joystick X Axis 2 Circuit Fault

004531.03 - Right Auxiliary Joystick X Axis Circuit Fault

004531.04 - Right Auxiliary Joystick X Axis Circuit Fault

004531.13 - Right Auxiliary Joystick Circuit Fault

004532.03 - Right Auxiliary Joystick Y Axis 2 Circuit Fault

004532.04 - Right Auxiliary Joystick Y Axis 2 Circuit Fault

004535.03 - Right Auxiliary Joystick Y Axis Circuit Fault

004535.04 - Right Auxiliary Joystick Y Axis 2 Circuit Fault

004535.13 - Right Auxiliary Joystick Circuit Fault

004539.03 - Right Auxiliary Joystick 2 Switch Circuit Fault

004539.04 - Right Auxiliary Joystick 2 Switch Circuit Fault

004540.03 - Right Blade Lift Float Switch Circuit Fault

004540.04 - Right Blade Lift Float Switch Circuit Fault

004541.03 - Right Auxiliary Joystick 1 Switch Circuit Fault

004541.04 - Right Auxiliary Joystick 1 Switch Circuit Fault

004713.03 - Left Auxiliary Joystick X Axis 2 Circuit Fault

004713.04 - Left Auxiliary Joystick X Axis 2 Circuit Fault

004716.03 - Left Auxiliary Joystick X Axis Circuit Fault

004716.04 - Left Auxiliary Joystick X Axis 2 Circuit Fault

004716.13 - Left Auxiliary Joystick Circuit Fault

004717.03 - Left Auxilliary Joystick Y Axis 2 Circuit Fault

004717.04 - Left Auxilliary Joystick Y Axis 2 Circuit Fault

004720.03 - Left Auxilliary Joystick Y Axis Circuit Fault

004720.04 - Left Auxilliary Joystick Y Axis Circuit Fault

004720.13 - Left Auxilliary Joystick Circuit Fault

004724.03 - Left Auxilliary Joystick 2 Switch Circuit Fault

004724.04 - Left Auxilliary Joystick 2 Switch Circuit Fault

004725.03 - Left Blade Lift Float Switch Circuit Fault

004725.04 - Left Blade Lift Float Switch Circuit Fault

004726.03 - Left Auxilliary Joystick 1 Circuit Fault

004726.04 - Left Auxilliary Joystick 1 Circuit Fault

516292.05 - Under Cab End Plate Warm Up Circuit Fault

516292.06 - Under Cab End Plate Warm Up Circuit Fault

516300.05 - Draft Frame End Plate Warm Up Circuit Fault

516300.06 - Draft Frame End Plate Warm Up Circuit Fault

Group 70: OC3 Diagnostic Trouble Codes

002033.09 - Communication System Message Missing

002634.04 - Ignition Relay Circuit Fault

002634.05 - Ignition Relay Circuit Fault

520752.04 - SSM Button Stuck

520752.09 - Communication System Message Missing

520753.04 - SSM Button Stuck

520753.09 - Lost Rear Defrost LED Message

520754.04 - SSM Button Stuck

520754.09 - Lost Lower Washer LED Message

520755.04 - SSM Button Stuck

520755.09 - Lost Lower Wiper LED Message

523335.04 - SSM Button Stuck

523335.09 - Lost Rear Wiper LED Message

523336.04 - SSM Button Stuck

523336.09 - Lost Rear Washer LED Message

523338.04 - SSM Button Stuck

523338.09 - Lost Auto Blade LED Message

523339.04 - SSM Button Stuck

523339.09 - Lost Auto Diff Lock LED Message

523340.04 - SSM Button Stuck

523340.09 - Lost Auto Trans LED Message

523849.04 - SSM Button Stuck

523849.09 - Lost A/C LED Message

523850.04 - SSM Button Stuck

523850.09 - Lost Front Wiper LED Message

523852.04 - SSM Button Stuck

523852.09 - Lost Front Washer LED Message

523854.04 - SSM Button Stuck

523854.09 - Lost R Cab Work Lts LED Message

523855.04 - SSM Button Stuck

523855.09 - Lost Cab Corner Lts LED Message

523856.04 - SSM Button Stuck

523856.09 - Lost Spare Button LED Message

523857.04 - SSM Button Stuck

523857.09 - Lost Drive Lts LED Message

523858.04 - SSM Button Stuck

523858.09 - Lost Frame Work Lt LED Message

523860.04 - SSM Button Stuck

523860.09 - Lost Cab Front Lts LED Message

523861.04 - SSM Button Stuck

523861.09 - Lost Lever Steering LED Message

523862.04 - SSM Button Stuck

523862.09 - Lost Saddle Lock Pin LED Message

523863.04 - SSM Button Stuck

523863.09 - Lost Hydraulic Enable LED Message

523864.04 - SSM Button Stuck

523864.09 - Lost Hazard LED Message

523865.04 - SSM Button Stuck

523865.09 - Lost Beacon Light LED Message

523867.04 - SSM Button Stuck

523867.09 - Lost Ignition Off LED Message

523868.04 - SSM Button Stuck

523868.09 - Lost Ignition On LED Message

Group 80: HWD Diagnostic Trouble Codes

000598.04 - Bottom of Inch Pedal Circuit Fault

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 - Left Forward Calibration Fault

000612.02 - Right Pump Neutral Out of Adjustment

000612.06 - No Right Motor Speed During Calibration

000612.07 - No Right Wheel Speed During Warm Up

000612.11 - Right Forward Calibration Fault

000613.11 - Left Reverse Calibration Fault

000614.07 - Left Hi/Low Solenoid Off During Calibration

000614.11 - Right Reverse Calibration Fault

000615.07 - Right Hi/Lo Solenoid Off During Calibration

000628.12 - Control Unit Programming

001592.00 - 6WD Left Motor Overspeed

001593.00 - 6WD Right Motor Overspeed

002003.09 - Communication System Message Missing

002538.31 - Precision Mode Fault

002612.04 - 6WD On/Off/Precision Switch Circuit Fault

522447.04 - 6WD Right Forward Solenoid Circuit Fault

522447.05 - 6WD Right Forward Solenoid Circuit Fault

522448.04 - 6WD Right Reverse Solenoid Circuit Fault

522448.05 - 6WD Right Reverse Solenoid Circuit Fault

522449.04 - 6WD Left Reverse Solenoid Circuit Fault

522449.05 - 6WD Left Reverse Solenoid Circuit Fault

522450.04 - 6WD Left Forward Solenoid Circuit Fault

522450.05 - 6WD Left Forward Solenoid Circuit Fault

523216.05 - Switched Power Circuit Fault

523218.05 - Switched Power Circuit Fault

523219.05 - Switched Power Circuit Fault

523678.03 - Right 6WD Drive Pump Reverse Solenoid Circuit Fault

523678.05 - Right 6WD Drive Pump Reverse Solenoid Circuit Fault

523679.03 - Left 6WD Drive Pump Reverse Solenoid Circuit Fault

523679.05 - Left 6WD Drive Pump Reverse Solenoid Circuit Fault

523680.03 - Left 6WD Drive Pump Forward Solenoid Circuit Fault

523680.05 - Left 6WD Drive Pump Forward Solenoid Circuit Fault

523681.03 - Right 6WD Drive Pump Forward Solenoid Circuit Fault

523681.05 - Right 6WD Drive Pump Forward Solenoid Circuit Fault

523856.05 - Precision Speed Switch Circuit Fault

523857.04 - Precision Mode Switch Circuit Fault

523858.04 - Inch Mode Switch Circuit Fault

523860.05 - Aggressiveness Switch Circuit Fault

523861.04 - Aggressiveness Switch A Circuit Fault

523862.04 - Aggressiveness Switch B Circuit Fault

523863.04 - Aggressiveness Switch C Circuit Fault

523864.04 - Aggressiveness Switch D Circuit Fault

524073.04 - Left 6WD Motor Hi/Lo Solenoid Circuit Fault

524073.05 - Left 6WD Motor Hi/Lo Solenoid Circuit Fault

524074.04 - Right 6WD Motor Hi/Lo Solenoid Circuit Fault

524074.05 - Right 6WD Motor Hi/Lo Solenoid Circuit Fault

524075.03 - FLC Enable Signal Circuit Fault

524075.05 - FLC Enable Signal Circuit Fault

524083.01 - 6WD Charge Pressure Low

524083.03 - 6WD Charge Pressure Switch or Charge Pressure Sensor Circuit Fault

524084.00 - 6WD Oil Temperature High

524084.04 - 6WD Oil Temperature Circuit Fault

524089.03 - Left 6WD Pressure Sensor Circuit Fault

524089.04 - Left 6WD Pressure Sensor Circuit Fault

524090.03 - Right 6WD Pressure Sensor Circuit Fault

524090.04 - Right 6WD Pressure Sensor Circuit Fault

524160.04 - Non Neutral Switch Circuit Fault

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

Group 170: VC2 Diagnostic Trouble Codes

000168.04 - Unswitched Power Circuit Fault

001983.03 - Lever Steer Left Solenoid Circuit Fault

001983.04 - Lever Steer Left Solenoid Circuit Fault

001983.05 - Lever Steer Left Solenoid Circuit Fault

001984.03 - Lever Steer Right Solenoid Circuit Fault

001984.04 - Lever Steer Right Solenoid Circuit Fault

001984.05 - Lever Steer Right Solenoid Circuit Fault

003354.31 - Sensor Supply 3 Circuit Fault

003509.03 - Sensor Supply 1 Circuit Fault

003509.04 - Sensor Supply 1 Circuit Fault

516249.04 - Controller Power Supply Fault

520911.03 - Engine Compartment Light Switch Circuit Fault

521368.03 - Switched Power Circuit Fault

521368.04 - Switched Power Circuit Fault

522109.03 - Engine Compartment Work Light Circuit Fault

522109.04 - Engine Compartment Work Light Circuit Fault

522340.03 - Saddle Lock Solenoid Circuit Fault

522340.05 - Saddle Lock Solenoid Circuit Fault

522340.06 - Saddle Lock Solenoid Circuit Fault

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

John Deere Engine Theory of Operation

Exhaust Aftertreatment

Cold Start Aid—If Equipped

Soft Start

Group 15: Diagnostic Information

John Deere Engine Diagnostic Information

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 Adjustments

Service Filter Cleaning

Group 25: Tests

John Deere Engine Tests

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 Diagrams

Front 6WD Harness (W10) Component Location

Front 6WD Harness (W10) 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—If Equipped

Fan Door Harness (W31) Component Location

Fan Door Harness (W31) Wiring Diagram

Heater and Air Conditioner Harness (W32) Component Location

Heater and Air Conditioner Harness (W32) Wiring Diagram

Radio Harness (W33) Component Location

Radio Harness (W33) 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

Fan Door Grounding Harness (W41) Component Location

Fan Door Grounding Harness (W41) Wiring Diagram

Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Component Location

Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Wiring Diagram

Satellite Radio Harness (W46) Component Location—If Equipped

Satellite Radio Harness (W46) Wiring Diagram—If Equipped

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

Diesel Exhaust Fluid (DEF) Harness (W54) Component Location

Diesel Exhaust Fluid (DEF) Harness (W54) Wiring Diagram

Selective Catalytic Reduction (SCR) Harness (W55) Component Location

Selective Catalytic Reduction (SCR) Harness (W55) Wiring Diagram

Tail Light Harnesses (W57 and W58) Component Location

Tail Light Harnesses (W57 and W58) Wiring Diagram

Auxiliary Radio Input Harness (W59) Component Location—If Equipped

Auxiliary Radio Input Harness (W59) Wiring Diagram—If Equipped

Hydraulic Pump Pressure Sensor Harness (W68) Component Location

Hydraulic Pump Pressure Sensor Harness (W68) Wiring Diagram

Snow Light Jumper Harnesses (W75 and W76) Component Location—If Equipped

Snow Light Jumper Harnesses (W75 and W76) Wiring Diagram—If Equipped

Diesel Fired Coolant Heater Harness (W77) Component Location—If Equipped

Diesel Fired Coolant Heater Harness (W77) Wiring Diagram—If Equipped

Trimble® Control Box Harness (W81) Component Location—If Equipped

Trimble® Control Box Harness (W81) Wiring Diagram—If Equipped

Trimble® Light Bar Cable Harness (W82) Component Location—If Equipped

Trimble® Light Bar Cable Harness (W82) Wiring Diagram—If Equipped

Trimble® Rear Main Harness (W83) Component Location—If Equipped

Trimble® Rear Main Harness (W83) Wiring Diagram—If Equipped

Trimble® Quick Disconnect Harnesses (W84 and W85) Component Location—If Equipped

Trimble® Quick Disconnect Harnesses (W84 and W85) Wiring Diagram—If Equipped

Trimble® Blade Slope Sensor Harness (W86) Component Location—If Equipped

Trimble® Blade Slope Sensor Harness (W86) Wiring Diagram—If Equipped

Trimble® Mainfall Sensor Harness (W87) Component Location—If Equipped

Trimble® Mainfall Sensor Harness (W87) Wiring Diagram—If Equipped

Trimble® Radio Harness (W88) Component Location—If Equipped

Trimble® Radio Harness (W88) Wiring Diagram—If Equipped

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

Vehicle Control Unit (VC2) 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)—TCU Calibration

Advanced Display Unit (ADU)—HWD Calibration

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 17: Diagnostic Test Box

Setup and Functional Test

Two Wire Sensor Circuit Check—Out of Range High

Two Wire Sensor Circuit Check—Out of Range Low

Three Wire Sensor Circuit Check—Out of Range High

Three Wire Sensor Circuit Check—Out of Range Low

Group 20: References

Flex Load Controller (FLC) Outputs

Service ADVISOR™ Application

Service ADVISOR™ Connection Procedure

Service ADVISOR™ Remote (SAR) 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)

Six Wheel Drive Motor Incomplete Calibration Test

CAN Circuit Testing

Electrical Component Specifications

Component Exchange Diagnostic Test

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

Switch Test

Wiper Motor 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

Six-Wheel Drive (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

Six-Wheel Drive (6WD) System Schematic

Six-Wheel Drive (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 Six-Wheel Drive (6WD) Operation

6WD Charge Pressure Indicator Light On

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)

Front Wheel Operates in Either Low or High Speed Only

Six-Wheel Drive (6WD) Front Wheel Motor Always Runs

Front Wheel Drags

Operates in One Direction Only

Wheels Rotate Opposite Each Other

Group 20: Adjustments

6WD Start-Up Procedure

6WD Pump Control Neutral Adjustment

Group 25: Tests

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 Lock Charge Pump Flow Test

Differential Oil Cooler Differential Pressure Test

Differential Oil Cooler Bypass Valve Pressure Test

Transmission Oil Cooler Differential Pressure Test

Park Brake Release Pressure Test

Section 9025: Hydraulic System

Group 05: Theory of Operation

Hydraulic System Operation

Hydraulic Pump Operation (S.N. —667937)

Hydraulic Pump Operation (S.N. 667938— )

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 Master Legend

Hydraulic System Schematic

Hydraulic System Schematic Master Legend—EH Controls

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

JT02156A Digital Pressure/Temperature Analyzer Kit Installation

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

Hydraulic Oil Cooler Differential Pressure 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 Flow Test

Hydraulic Fan Pump Case Drain Test

Hydraulic Fan Motor Speed Test

Hydraulic Fan Pump Control Test and Adjustment (S.N. —666774)

Hydraulic Fan Pump Control Test and Adjustment (S.N. 666775— )

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 Resistor Test

Heater Blower Motor Test

R134a Air Conditioning System Test

Operating Pressure Diagnostic Chart

John Deere Motor Graders 770G, 770GP, 772G, 772GP Operation and Test Service Manual (TM13026X19)