John Deere 770G, 770GP, 772G, and 772GP Motor Grader Diagnosis and Tests Service Technical Manual (TM13066X19)
Complete Diagnosis & Tests Technical Manual with electrical wiring diagrams for John Deere 770G, 770GP, 772G, and 772GP Motor Grader, with workshop information to maintain, diagnose, and rebuild like professional mechanics.
John Deere 770G, 770GP, 772G, and 772GP Motor Grader workshop Diagnosis & Tests technical 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.
TM13066X19 - John Deere 770G, 770GP, 772G, and 772GP Motor Grader Technical Manual.pdf
tm13066x63 - John Deere 770G, 770GP, 772G y 772GP Motoniveladora.pdf
tm13066x28 - John Deere Niveleuses 770G, 770GP, 772G et 772GP.pdf
tm13066x54 - John Deere Motoniveladoras 770G, 770GP, 772G e 772GP.pdf
tm13066x59 - John Deere 770G, 770GP, 772G, и 772GP Автогрейдеры.pdf
PRODUCT DETAILS:
Total Pages: 2,506 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Category: Operation and Test
Language: Spanish English Russian Portuguese French
Models: John Deere - 770G Motor Grader - 1DW770GP_ _D656729 – 678817
TABLE OF CONTENTS
Section 9000: General Information...37
Group 01: Safety...37
Recognize Safety Information...40
Follow Safety Instructions...41
Operate Only If Qualified...42
Wear Protective Equipment...43
Avoid Unauthorized Machine Modifications...44
Inspect Machine...45
Stay Clear of Moving Parts...46
Avoid High-Pressure Fluids...47
Avoid High-Pressure Oils...48
Work In Ventilated Area...49
Avoid Static Electricity Risk When Refueling...50
Prevent Fires...52
Prevent Battery Explosions...53
Handle Chemical Products Safely...54
Decommissioning — Proper Recycling and Disposal of Fluids and Components...55
Prepare for Emergencies...56
Clean Debris from Machine...57
Use Steps and Handholds Correctly...58
Start Only From Operator's Seat...59
Use and Maintain Seat Belt...60
Prevent Unintended Machine Movement...61
Avoid Work Site Hazards...62
Keep Riders Off Machine...64
Avoid Backover Accidents...65
Avoid Machine Tip Over and Machine Damage...66
Operating or Traveling On Public Roads...67
Inspect and Maintain ROPS...68
Add and Operate Attachments Safely...69
Park and Prepare for Service Safely...70
Service Cooling System Safely...71
Remove Paint Before Welding or Heating...72
Make Welding Repairs Safely...73
Drive Metal Pins Safely...74
Service Tires Safely...75
Section 9001: Diagnostics...76
Group 10: PCU Diagnostic Trouble Codes...76
000177.00 - Transmission Oil Temperature High...76
000177.04 - Transmission Oil Temperature Short To Ground...76
000525.02 - Program Variable REQ_GEAR Has Taken On An Invalid Value...76
000525.12 - Request For An Undefined Shift Being Made...76
000723.02 - Transmission Input Speed Sensor Bad Data...76
002000.02 - ECU CAN Data Invalid...76
002000.09 - Can Communication Lost For ECU...76
002033.02 - FLC CAN Data Invalid...76
002033.09 - CAN Communication Lost For FLC...76
002225.09 - CAN Communication Lost For Six Wheel Drive...76
522252.00 - Clutch 1 Hold Pressure Too High...76
522252.01 - Clutch 1 Hold Pressure Too Low...76
522253.00 - Clutch 2 Hold Pressure Too High...76
522253.01 - Clutch 2 Hold Pressure Too Low...76
522254.00 - Clutch 3 Hold Pressure Too High...76
522254.01 - Clutch 3 Hold Pressure Too Low...76
522255.00 - Clutch 4 Hold Pressure Too High...76
522255.01 - Clutch 4 Hold Pressure Too Low...76
522256.00 - Clutch A Hold Pressure Too High...76
522256.01 - Clutch A Hold Pressure Too Low...76
522257.00 - Clutch B Hold Pressure Too High...76
522257.01 - Clutch B Hold Pressure Too Low...76
522258.00 - Clutch C Hold Pressure Too High...76
522258.01 - Clutch C Hold Pressure Too Low...76
522259.00 - Clutch D Hold Pressure Too High...76
522259.01 - Clutch D Hold Pressure Too Low...76
522397.04 - Not In Forward Or Reverse While In Gear...76
522398.12 - Park And Not Park Both Active...76
522405.05 - Park Brake Pressure Low At Power-up...76
522413.12 - Gear Bits Active In Park...76
522414.03 - Transmission Clutch D Short To Power...76
522414.05 - Transmission Clutch D Open/Short To Ground...77
522507.14 - Inching Pedal During Trans Calibration...77
522517.31 - Engine Stall Prevention Active...77
523655.03 - Forward And Reverse Both Active...77
523699.31 - Transmission Speed Clutch Slipping...77
523700.00 - Clutch Protection Excessive Inching...77
523700.16 - Clutch Protection Excessive Inching...77
523700.31 - Transmission Direction Clutch Slipping...77
523708.02 - Inching Switch Signal Bad...77
523712.31 - Transmission CAL Without Park Brake Set...77
523717.31 - Helper Clutch Pressure High...77
523718.31 - Clutch Drum Speed Decel Excessive...77
523720.00 - Clutch D Fill Time Too Long...77
523720.01 - Clutch D Fill Time Too Short...77
523721.00 - Clutch C Fill Time Too Long...77
523721.01 - Clutch C Fill Time Too Short...77
523722.00 - Clutch B Fill Time Too Long...77
523722.01 - Clutch B Fill Time Too Short...77
523723.00 - Clutch A Fill Time Too Long...77
523723.01 - Clutch A Fill Time Too Short...77
523724.00 - Clutch 4 Fill Time Too Long...77
523724.01 - Clutch 4 Fill Time Too Short...77
523725.00 - Clutch 3 Fill Time Too Long...77
523725.01 - Clutch 3 Fill Time Too Short...77
523726.00 - Clutch 2 Fill Time Too Long...77
523726.01 - Clutch 2 Fill Time Too Short...77
523727.00 - Clutch 1 Fill Time Too Long...77
523727.01 - Clutch 1 Fill Time Too Short...77
523728.31 - Transmission Reverse Cylinder Speed Incorrect At Calibration...77
523729.31 - Transmission Forward Cylinder Speed Incorrect At Calibration...77
523730.31 - No Transmission Cylinder Speed During Calibration...77
523731.31 - Transmission Output Speed Detected At Calibration...77
523732.31 - Engine Speed Too Low To Calibrate The Transmission...77
523733.31 - Engine Speed Too High To Calibrate The Transmission...78
523734.31 - Transmission Too Cold To Calibrate...78
523735.04 - Valve Driver Supply Voltage Low...78
523736.14 - Bad Gear Position Switch State...78
523738.02 - Shifter Handle Problem...78
523738.31 - Shifter Handle Problem...78
523739.31 - Not Park And Forward/Reverse Mismatch...78
523740.31 - Forward/Reverse Switch And Gear Mismatch...78
523741.31 - Started In Gear...78
523742.31 - Shifter Vsense Low...78
523747.14 - Park and Not Park Both Passive...78
523750.04 - Not Park Passive In Gear Or Neutral...78
523754.03 - Not Park Active At Startup...78
523755.05 - Park Start Input Passive At Power Up...78
523761.03 - Transmission Clutch 4 Short To Power...78
523761.05 - Transmission Clutch 4 Open/Short To Ground...78
523762.03 - Transmission Clutch 3 Short To Power...78
523762.05 - Transmission Clutch 3 Open/Short To Ground...78
523763.03 - Transmission Clutch 2 Short To Power...78
523763.05 - Transmission Clutch 2 Open/Short To Ground...78
523764.03 - Transmission Clutch 1 Short To Power...78
523764.05 - Transmission Clutch 1 Open/Short To Ground...78
524029.00 - Inching Pedal Out Of Range High...78
524029.01 - Inching Pedal Out Of Range Low...78
524029.12 - Inching Pedal Minimum Voltage Exceeds Maximum Voltage...78
524194.07 - Direction Sensor Mismatch...78
524271.03 - Transmission Clutch C Short To Power...78
524271.05 - Transmission Clutch C Open/Short To Ground...78
524272.03 - Transmission Clutch B Short To Power...78
524272.05 - Transmission Clutch B Open/Short To Ground...78
524273.03 - Transmission Clutch A Short To Power...78
524273.05 - Transmission Clutch A Open/Short To Ground...78
524275.31 - Forward/Reverse Without Valid Gear...78
Group 20: ECU Diagnostic Trouble Codes...79
000029.03 - Decel Pedal Short to Power...79
000091.03 - Accel Pedal Short to Power...79
000091.04 - Accel Pedal Open or Short...79
000107.00 - Engine Air Filter Restricted...79
000596.31 - Engine Speed Control Enable Switch Fault...79
000600.31 - Engine Speed Accel/ Decel Switch Fault...79
001196.31 - ECU Anti Theft Locked...79
001321.05 - Starter Relay Open Circuit...79
001321.06 - Starter Relay High Current...79
001321.30 - Starter Engaged for 30 Seconds...79
001321.31 - Starter Solenoid Open Circuit...79
002003.09 - CAN Communication Lost For TCU...79
002033.09 - CAN Communication Lost For FLC...79
Group 30: ADU Diagnostic Trouble Codes...79
000158.03 - Switched Power Voltage High...79
000158.04 - Switched Power Voltage Low...79
000168.03 - Battery Voltage High...79
000168.04 - Battery Voltage Low...79
000442.00 - Display Temperature High...79
000442.01 - Display Temperature Low...79
001491.11 - LCD Backlight Failure...79
002033.09 - CAN Communication Lost For FLC...79
003597.02 - 5.0 Volt Power Supply Invalid...79
003598.02 - 1.5 Volt Power Supply Invalid...79
003599.02 - 3.3 Volt Power Supply Invalid...79
523436.14 - ADU Watchdog Time Out...79
523438.31 - Memory Error...79
523651.02 - Memory Stack Overflow...79
523773.03 - CAN High Voltage High...79
523773.04 - CAN High Voltage Low...79
523774.03 - CAN Low Voltage High...79
523774.04 - CAN Low Voltage Low...79
524076.10 - Information Button Stuck...80
524077.10 - Back Key Button Stuck...80
524078.10 - Menu Select Button Stuck...80
524080.10 - Down Arrow Button Stuck...80
524082.10 - Up Arrow Button Stuck...80
Group 40: FLC Diagnostic Trouble Codes...80
000096.03 - Fuel Level Sender Open or Short...80
000096.04 - Fuel Level Sender Short To Ground...80
000117.01 - Service Brake Pressure Low...80
000117.04 - Service Brake Accumulator Switch Short to Ground...80
000167.03 - System Voltage Above Normal...80
000167.04 - System Voltage Below Normal...80
000168.03 - High Battery Voltage...80
000168.04 - Low Battery Voltage...80
000746.05 - Differential Lock Solenoid Open or Short...80
000746.06 - Differential Lock Solenoid High Current...80
000880.05 - Brake Lights Open or Short...80
000880.06 - Brake Lights High Current...80
000977.05 - Reverse Fan Solenoid Open or Short...80
000977.06 - Reverse Fan Solenoid Short to Ground...80
001045.04 - Brake Light Switch Short to Ground...80
001071.03 - Fan Speed Solenoid Open or Short...80
001071.04 - Fan Speed Solenoid High Current...80
001196.02 - ECU Toggle Lock Status Failed...80
001550.05 - AC Clutch Open Circuit...80
001550.06 - AC Clutch Short to Ground...80
001638.00 - Hydraulic Oil High Temperature...80
001638.03 - Hydraulic Oil Temperature Sensor Open or Short...80
001638.04 - Hydraulic Oil Temp Short To Ground...80
001713.01 - Hydraulic Oil Filter Restricted...80
001713.03 - Hydraulic Oil Filter Switch Short to Power...80
001762.01 - Hydraulic Pressure Low...80
001762.03 - Hydraulic Pressure Short to Power...80
001762.04 - Hydraulic Pressure Short to Ground...81
002000.09 - CAN Communication Lost For ECU...81
002003.09 - CAN Communication Lost For TCU...81
002034.09 - CAN Communication Lost For AVC...81
002040.09 - CAN Communication Lost For ADU...81
002141.09 - CAN Communication Lost For SSM...81
002160.09 - CAN Communication Lost For RJ1...81
002161.09 - CAN Communication Lost For RJ2...81
002162.09 - CAN Communication Lost For RJ3...81
002163.09 - CAN Communication Lost For RJ4...81
002165.09 - CAN Communication Lost For LJ1...81
002166.09 - CAN Communication Lost For LJ2...81
002167.09 - CAN Communication Lost For LJ3...81
002168.09 - CAN Communication Lost For LJ4...81
002213.09 - CAN Communication Lost For HVC...81
002225.09 - CAN Communication Lost For 6WD...81
002251.09 - JDL CAN Comm Bad Update Rate...81
002348.05 - High Beam Lamps Open Circuit...81
002348.06 - High Beam Lamps High Current...81
002350.05 - Low Beam Lamps Open Circuit...81
002350.06 - Low Beam Lamps High Current...81
002352.05 - Cab Front Work Lights Open Circuit...81
002352.06 - Cab Front Work Lights High Current...81
002353.05 - Front Work Lights Open Circuit...81
002353.06 - Front Work Lights High Current...81
002356.05 - Front Cab Corner Lights Open Circuit...81
002356.06 - Front Cab Corner Lights High Current...81
002360.05 - Rear Work Lights Open Circuit...81
002360.06 - Rear Work Lights High Current...81
002362.05 - Rear Cab Corner Lights Open Circuit...81
002362.06 - Rear Cab Corner Lights High Current...81
002366.05 - Side Work Lights Open Circuit...81
002366.06 - Side Work Lights High Current...81
002368.05 - Left Turn Lights Open Circuit...82
002368.06 - Left Turn Lights High Current...82
002370.05 - Right Turn Lights Open Circuit...82
002370.06 - Right Turn Lights High Current...82
002378.05 - Marker/Tail Lights Open Circuit...82
002378.06 - Marker/Tail Lights High Current...82
002386.06 - Rotary Beacon Short to Ground...82
002874.04 - High Beam Switch Short to Ground...82
002876.04 - Turn Signal Switch Short to Ground...82
003318.03 - Blade Pitch Sensor Short to Power...82
003318.04 - Blade Pitch Sensor Short to Ground...82
003319.03 - Slope Sensor Short to Power...82
003319.04 - Slope Sensor Short to Ground...82
003331.03 - Circle Rotate Sensor Short to Power...82
003331.04 - Circle Rotate Sensor Short to Ground...82
3509.03 - Sensor Supply 1 Short to Power...82
3509.04 - Sensor Supply 1 Short to Ground...82
003510.03 - Sensor Supply 2 Short to Power...82
003510.04 - Sensor Supply 2 Short to Ground...82
003511.03 - Sensor Supply 3 Short to Power...82
003511.04 - Sensor Supply 3 Short to Ground...82
517064.01 - Hydrostatic Oil Filter Restricted...82
517064.03 - Hydrostatic Oil Filter Restriction Switch Circuit Fault...82
520450.03 - Saddle Lock Pin Switch Short to Power...82
521650.00 - Fan Pressure Extremely High...82
521650.03 - Hydraulic Fan Pressure Sensor Short to Power...82
521650.04 - Hydraulic Fan Pressure Sensor Short to Ground...82
521900.03 - Articulation Angle Sensor Short to Power...82
521900.04 - Articulation Angle Sensor Short to Ground...82
522340.05 - Saddle Lock Solenoid Open Circuit...82
522340.06 - Saddle Lock Solenoid High Current...82
522341.05 - Heated Mirror Open Circuit...82
522341.06 - Heated Mirror High Current...82
522343.06 - Rear Window Defrost Relay High Current...83
522375.01 - Transmission Oil Filter Restricted...83
522375.03 - Transmission Oil Filter Switch Short to Power...83
522415.05 - Front Lower Washer Pump Open Circuit...83
522415.06 - Front Lower Washer Pump High Current...83
522416.05 - Front Lower Wiper High Speed Open Circuit...83
522416.06 - Front Lower Wiper High Speed High Current...83
522417.05 - Front Lower Wiper Park Open Circuit...83
522418.05 - Front Lower Wiper Low Speed Open Circuit...83
522418.06 - Front Lower Wiper Low Speed High Current...83
522426.05 - Rear Wiper Park Open Circuit...83
522427.05 - Front Wiper Park Open Circuit...83
522433.05 - Rear Wiper Low Speed Open Circuit...83
522433.06 - Rear Wiper Low Speed High Current...83
522434.05 - Front Wiper Low Speed Open Circuit...83
522434.06 - Front Wiper Low Speed High Current...83
522435.05 - Front Wiper High Speed Open Circuit...83
522435.06 - Front Wiper High Speed High Current...83
522796.05 - Rear Washer Pump Open Circuit...83
522796.06 - Rear Washer Pump High Current...83
522797.05 - Front Washer Pump Open Circuit...83
522797.06 - Front Washer Pump High Current...83
523440.04 - Unswitched Power Voltage Low...83
523688.03 - Steering Angle Sensor Short to Power...83
523688.04 - Steering Angle Sensor Short to Ground...83
523689.04 - Differential Lock Switch Short to Ground...83
523901.01 - Front Lower Window Switch Short to Ground...83
524044.01 - Axle Oil Filter Restricted...83
524044.03 - Axle Oil Filter Switch Short to Power...83
Group 50: HVC Diagnostic Trouble Codes...83
000583.03 - Mainfall Sensor Short to Power...83
000583.04 - Mainfall Sensor Short to Ground...83
001503.04 - Left Armrest Up Switch Short to Ground...83
001503.13 - Left Armrest Position Undetermined...84
001565.04 - Left Armrest Down Switch Short to Ground...84
001566.04 - Right Armrest Down Switch Short to Ground...84
001899.03 - Circle Side Shift A Short to Power...84
001899.04 - Circle Side Shift A Open or Short to Ground...84
001900.03 - Circle Side Shift B Short to Power...84
001900.04 - Circle Side Shift B Open or Short to Ground...84
001911.03 - Wheel Lean A Short to Power...84
001911.04 - Wheel Lean A Open or Short to Ground...84
001912.03 - Wheel Lean B Short to Power...84
001912.04 - Wheel Lean B Open or Short to Ground...84
001923.03 - Right Blade Lift A Short to Power...84
001923.04 - Right Blade Lift A Open or Short to Ground...84
001924.03 - Right Blade Lift B Short to Power...84
001924.04 - Right Blade Lift B Open or Short to Ground...84
001935.03 - Articulation A Short to Power...84
001935.04 - Articulation A Open or Short to Ground...84
001936.03 - Articulation B Short to Power...84
001936.04 - Articulation B Open or Short to Ground...84
001947.03 - Circle Rotate A Short to Power...84
001947.04 - Circle Rotate A Open or Short to Ground...84
001948.03 - Circle Rotate B Short to Power...84
001948.04 - Circle Rotate B Open or Short to Ground...84
001959.03 - Blade Side Shift A Short to Power...84
001959.04 - Blade Side Shift A Open or Short to Ground...84
001960.03 - Blade Side Shift B Short to Power...84
001960.04 - Blade Side Shift B Open or Short to Ground...84
001971.03 - Left Blade Lift A Short to Power...84
001971.04 - Left Blade Lift A Open or Short to Ground...84
001972.03 - Left Blade Lift B Short to Power...84
001972.04 - Left Blade Lift B Open or Short to Ground...84
001983.03 - Steering Left A Short to Power...84
001983.04 - Steering Left A Open or Short to Ground...84
001984.03 - Steering Left B Short to Power...85
001984.04 - Steering Left B Open or Short to Ground...85
002000.09 - CAN Communication Lost For ECU...85
002003.09 - CAN Communication Lost For TCU...85
002033.09 - CAN Communication Lost For FLC...85
002034.09 - CAN Communication Lost For AVC...85
002160.09 - CAN Communication Lost For RJ1...85
002161.09 - CAN Communication Lost For RJ2...85
002162.09 - CAN Communication Lost For RJ3...85
002163.09 - CAN Communication Lost For RJ4...85
002165.09 - CAN Communication Lost For LJ1...85
002166.09 - CAN Communication Lost For LJ2...85
002167.09 - CAN Communication Lost For LJ3...85
002168.09 - CAN Communication Lost For LJ4...85
520752.04 - Return to Straight Switch 1 Short to Ground...85
520753.04 - Return to Straight Switch 2 Short to Ground...85
520754.04 - Return to Straight Switch 3 Short to Ground...85
520755.04 - Return to Straight Switch 4 Short to Ground...85
521485.04 - Right Armrest Up Switch Short to Ground...85
521485.13 - Right Armrest Position Undetermined...85
523849.13 - Return to Straight Switch Mismatch...85
Group 60: AVC Diagnostic Trouble Codes...85
001995.03 - Blade Pitch A Short to Power...85
001995.04 - Blade Pitch A Open or Short to Ground...85
001996.03 - Blade Pitch B Short to Power...85
001996.04 - Blade Pitch B Open or Short to Ground...85
002000.09 - CAN Communication Lost For ECU...85
002003.09 - CAN Communication Lost For TCU...85
002033.09 - CAN Communication Lost For FLC...85
002160.09 - CAN Communication Lost For RJ1...85
002161.09 - CAN Communication Lost For RJ2...85
002162.09 - CAN Communication Lost For RJ3...85
002163.09 - CAN Communication Lost For RJ4...85
002165.09 - CAN Communication Lost For LJ1...86
002166.09 - CAN Communication Lost For LJ2...86
002167.09 - CAN Communication Lost For LJ3...86
002168.09 - CAN Communication Lost For LJ4...86
002213.09 - CAN Communication Lost For HVC...86
002263.03 - Ripper/Under Cab Auxiliary 1 A Short to Power...86
002263.04 - Ripper/Under Cab Auxiliary 1 A Open or Short to Ground...86
002264.03 - Ripper/Under Cab Auxiliary 1 B Short to Power...86
002264.04 - Ripper/Under Cab Auxiliary 1 B Open or Short to Ground...86
002275.03 - Under Cab Auxiliary 2 A Short to Power...86
002275.03 - Under Cab Auxiliary 2 A Short to Power...86
002275.04 - Under Cab Auxiliary 2 A Open or Short to Ground...86
002276.03 - Under Cab Auxiliary 2 B Short to Power...86
002276.04 - Under Cab Auxiliary 2 B Open or Short to Ground...86
002287.03 - Under Cab Auxiliary 3 A Short to Power...86
002287.04 - Under Cab Auxiliary 3 A Open or Short to Ground...86
002288.03 - Under Cab Auxiliary 3 B Short to Power...86
002288.04 - Under Cab Auxiliary 3 B Open or Short to Ground...86
002299.03 - Draft Frame Auxiliary 1 A Short to Power...86
002299.04 - Draft Frame Auxiliary 1 A Open or Short to Ground...86
002300.03 - Draft Frame Auxiliary 1 B Short to Power...86
002300.04 - Draft Frame Auxiliary 1 B Open or Short to Ground...86
002311.03 - Draft Frame Auxiliary 2 A Short to Power...86
002311.04 - Draft Frame Auxiliary 2 A Open or Short to Ground...86
002312.03 - Draft Frame Auxiliary 2 B Short to Power...86
002312.04 - Draft Frame Auxiliary 2 B Open or Short to Ground...86
002323.03 - Draft Frame Auxiliary 3 A Short to Power...86
002323.04 - Draft Frame Auxiliary 3 A Open or Short to Ground...86
002324.03 - Draft Frame Auxiliary 3 B Short to Power...86
002324.04 - Draft Frame Auxiliary 3 B Open or Short to Ground...86
004528.03 - Right Auxiliary X Axis 2 Short to Power...86
004528.04 - Right Auxiliary X Axis 2 Short to Ground...86
004531.03 - Right Auxiliary X Axis Short to Power...86
004531.04 - Right Auxiliary X Axis Short to Ground...87
004531.13 - Right Auxiliary X Axis Redundance Mismatch...87
004532.03 - Right Auxiliary Y Axis 2 Short to Power...87
004532.04 - Right Auxiliary Y Axis 2 Short to Ground...87
004535.03 - Right Auxiliary Y Axis Short to Power...87
004535.04 - Right Auxiliary Y Axis Short to Ground...87
004535.13 - Right Auxiliary Y Axis Redundance Mismatch...87
004539.03 - Right Auxiliary 2 Switch Short to Power (Stuck On)...87
004539.04 - Right Auxiliary 2 Switch Short to Ground...87
004540.03 - Right Blade Lift Float Switch Short to Power (Stuck On)...87
004540.04 - Right Blade Lift Float Switch Short to Ground...87
004541.03 - Right Auxiliary 1 Switch Short to Power (Stuck On)...87
004541.04 - Right Auxiliary 1 Switch Short to Ground...87
004713.03 - Left Auxiliary X Axis Short to Power 2...87
004713.04 - Left Auxiliary X Axis Short to Ground 2...87
004716.03 - Left Auxiliary X Axis Short to Power...87
004716.04 - Left Auxiliary X Axis Short to Ground...87
004716.13 - Left Auxiliary X Axis Redundance Mismatch...87
004717.03 - Left Auxiliary Y Axis 2 Short to Power...87
004717.04 - Left Auxiliary Y Axis 2 Short to Ground...87
004720.03 - Left Auxiliary Y Axis Short to Power...87
004720.04 - Left Auxiliary Y Axis Short to Ground...87
004720.13 - Left Auxiliary Y Axis Redundance Mismatch...87
004724.03 - Left Auxiliary 2 Switch Short to Power (Stuck On)...87
004724.04 - Left Auxiliary 2 Switch Short to Ground...87
004725.03 - Left Blade Lift Float Switch Short to Power (Stuck On)...87
004725.04 - Left Blade Lift Float Switch Short to Ground...87
004726.03 - Left Auxiliary 1 Switch Short to Power (Stuck On)...87
004726.04 - Left Auxiliary 1 Switch Short to Ground...87
516292.05 - Under Cab End Plate Warm-Up Open Circuit...87
516292.06 - Under Cab End Plate Warm-Up High Current...87
516300.05 - Draft Frame End Plate Warm-Up Open Circuit...87
516300.06 - Draft Frame End Plate Warm-Up High Current...87
Group 70: OC3 Diagnostic Trouble Codes...88
000629.12 - SSM Watchdog Time Out...88
002033.09 - CAN Communication Lost For FLC...88
002634.04 - Ignition Relay Output Short to Ground...88
002634.05 - Ignition Relay Output Open...88
520752.04 - Heated Mirror Button Stuck...88
520752.09 - Heated Mirror Button Missing CAN Status Message...88
520753.04 - Rear Defrost Button Stuck...88
520753.09 - Rear Defrost Button Missing CAN Message...88
520754.04 - Lower Washer Button Stuck...88
520754.09 - Lower Washer Button Missing CAN Status Message...88
520755.04 - Lower Wiper Button Stuck...88
520755.09 - Lower Wiper Button Missing CAN Status Message...88
523335.04 - Rear Wiper Button Stuck...88
523335.09 - Rear Wiper Button Missing CAN Status Message...88
523336.04 - Rear Washer Button Stuck...88
523336.09 - Rear Washer Button Missing CAN Status Message...88
523338.04 - Auto Blade Button Stuck...88
523338.09 - Auto Blade Button Missing CAN Status Message...88
523339.04 - Auto Differential Lock Button Stuck...88
523339.09 - Auto Differential Lock Button Missing CAN Status Message...88
523340.04 - Auto Shift Button Stuck...88
523340.09 - Auto Shift Button Missing CAN Status Message...88
523849.04 - Air Conditioning/Defrost Button Stuck...88
523849.09 - Air Conditioning/Defrost Button Missing CAN Status Message...88
523850.04 - Front Wiper Button Stuck...88
523850.09 - Front Wiper Button Missing CAN Status Message...88
523852.04 - Front Washer Button Stuck...88
523852.09 - Front Washer Button Missing CAN Status Message...88
523854.04 - Right Cab Work Lights Button Stuck...88
523854.09 - Right Cab Work Lights Button Missing CAN Status Message...88
523855.04 - Cab Corner Work Lights Button Stuck...88
523855.09 - Cab Corner Work Lights Button Missing CAN Status Message...88
523856.04 - Spare Button Stuck...89
523856.09 - Spare Button Missing CAN Status Message...89
523857.04 - Drive Marker Light Button Stuck...89
523857.09 - Drive Marker Light Button Missing CAN Status Message...89
523858.04 - Frame Work Light Button Stuck...89
523858.09 - Frame Work Light Button Missing CAN Status Message...89
523860.04 - Cab Front Work Lights Button Stuck...89
523860.09 - Cab Front Work Lights Button Missing CAN Status Message...89
523861.04 - Lever Steering Button Stuck...89
523861.09 - Lost Lever Steering LED Message...89
523862.04 - Saddle Lock Pin Button Stuck...89
523862.09 - Saddle Lock Pin Button Missing CAN Status Message...89
523863.04 - Hydraulic Enable Button Stuck...89
523863.09 - Hydraulic Enable Button Missing CAN Status Message...89
523864.04 - Hazard Button Stuck...89
523864.09 - Hazard Button Missing CAN Status Message...89
523865.04 - Beacon Light Button Stuck...89
523865.09 - Beacon Light Button Missing CAN Status Message...89
523867.04 - Stop Button Stuck...89
523867.09 - Stop Button Missing CAN Status Message...89
523868.04 - Start Button Stuck...89
523868.09 - Start Button Missing CAN Status Message...89
Group 80: HWD Diagnostic Trouble Codes...89
000598.04 - Bottom of Inching Pedal Short To Ground...89
000611.02 - Left Pump Neutral Out of Adjustment...89
000611.06 - No Left Motor Speed During Calibration...89
000611.07 - No Left Motor Speed During Warm Up...89
000611.11 - Unable to Calibrate Left Forward Gears 1—4...89
000612.02 - Right Pump Neutral Out of Adjustment...89
000612.06 - No Right Motor Speed During Calibration...89
000612.07 - No Right Motor Speed During Warm Up...89
000612.11 - Unable to Calibrate Right Forward Gears 1—4...89
000613.11 - Unable to Calibrate Left Reverse Gears 1—4...89
000614.07 - Left High/Low Solenoid Off During Calibration...90
000614.11 - Unable to Calibrate Right Reverse Gears 1—4...90
000615.07 - Right High/Low Solenoid Off During Calibration...90
001592.00 - Six Wheel Drive Left Motor Overspeed...90
001593.00 - Six Wheel Drive Right Motor Overspeed...90
2000.09 - CAN Communication Lost For ECU...90
002003.09 - CAN Communication Lost From Transmission Control Unit (TCU)...90
002033.09 - CAN Communication Lost For FLC...90
002538.31 - Transmission Control Unit (TCU) Not Allowing Precision Mode...90
002612.04 - Six Wheel Drive On/Off Switch Short To Ground...90
522447.04 - Right Forward Brake Solenoid Short To Ground...90
522447.05 - Right Forward Brake Solenoid Open Circuit...90
522448.04 - Right Reverse Brake Solenoid Short To Ground...90
522448.05 - Right Reverse Brake Solenoid Open Circuit...90
522449.04 - Left Reverse Brake Solenoid Short To Ground...90
522449.05 - Left Reverse Brake Solenoid Open Circuit...90
522450.04 - Left Forward Brake Solenoid Short To Ground...90
522450.05 - Left Forward Brake Solenoid Open Circuit...90
522507.03 - Calibration Power After Power-Up...90
522507.04 - Six Wheel Drive Calibration Input Short To Ground...90
523216.05 - No Voltage To Valve Power 4...90
523217.05 - No Voltage To Valve Power 5...90
523218.05 - No Voltage To Valve Power 2...90
523219.05 - No Voltage To Valve Power 1...90
523678.03 - Right Drive Pump Reverse Solenoid Short To Power...90
523678.05 - Right Drive Pump Reverse Solenoid Open Circuit...90
523679.03 - Left Drive Pump Reverse Solenoid Short To Power...90
523679.05 - Left Drive Pump Reverse Solenoid Open Circuit...90
523680.03 - Left Drive Pump Forward Solenoid Short To Power...90
Section 9005: Operational Checkout Procedure...1445
Group 10: Operational Checkout Procedure...1445
Operational Checkout...1483
Section 9010: Engine...1520
Group 05: Theory of Operation...1520
Engine Identification...1525
John Deere Engine Theory of Operation...1529
Cold Weather Start Aid...1530
Soft Start...1534
Engine Speed...1535
Group 15: Diagnostic Information...1520
John Deere Engine Diagnostic Information...1537
Engine Sampling Port Location...1538
Engine Cooling System Component Location...1539
Engine Fuel System Component Location...1542
Engine Intake and Exhaust Component Location...1544
Group 25: Tests...1520
John Deere Engine...1548
Fluid Sampling Procedure...1549
Intake Manifold Pressure Test-Turbocharger Boost—9.0L Stage II...1554
Engine Slow and Fast Idle Speed Check...1556
Radiator Temperature Differential Test...1557
Turbocharger Wastegate Actuator Test—Engine 6090HDW04...1559
Section 9015: Electrical System...1561
Group 05: System Information...1561
Electrical Diagram Information...1570
Electrical Schematic Symbols...1574
Group 10: System Diagrams...1561
Fuse and Relay Specifications...1579
System Functional Schematic, Wiring Diagram and Component Location Master Legend...1581
System Functional Schematic...1593
Power and Ground Cables Component Location...1606
Power and Ground Cables Wiring Diagram...1608
Front 6WD Harness (W10) Component Location...1612
Front 6WD Harness (W10) Wiring Diagram...1614
Rear 6WD Harness (W11) Component Location...1616
Rear 6WD Harness (W11) Wiring Diagram (S.N. —667937)...1617
Rear 6WD Harness (W11) Wiring Diagram (S.N. 667938— )...1619
Heater and Air Conditioner Harness (W12) Component Location...1621
Heater and Air Conditioner Harness (W12) Wiring Diagram...1623
Radio Harness (W13) Component Location...1625
Radio Harness (W13) Wiring Diagram...1627
Cab Roof Harness (W14) Component Location...1629
Cab Roof Harness (W14) Wiring Diagram...1631
Cab Interior Harness (W15) Component Location—6WD...1633
Cab Interior Harness (W15) Wiring Diagram—6WD...1635
Cab Interior Harness (W16) Component Location—Non 6WD...1647
Cab Interior Harness (W16) Wiring Diagram—Non 6WD...1649
Front Motor Speed Sensor Harnesses (W17 and W18) Component Location—6WD...1660
Front Motor Speed Sensor Harnesses (W17 and W18) Wiring Diagram—6WD...1662
Blade Impact Harness (W19) Component Location—If Equipped...1664
Blade Impact Harness (W19) Wiring Diagram—If Equipped...1665
Turn-Tail-Stop Light Harness (W20) Component Location...1666
Turn-Tail-Stop Light Harness (W20) Wiring Diagram...1667
Drive and Turn Lights Harnesses (W22 and W23) Component Location...1668
Drive and Turn Lights Harnesses (W22 and W23) Wiring Diagram...1669
Steering Angle Sensor Harness (W24) Component Location—6WD...1673
Steering Angle Sensor Harness (W24) Wiring Diagram—6WD...1674
Front Platform Harness (W25) Component Location...1676
Front Platform Harness (W25) Wiring Diagram...1679
Rear Platform Harness (W26) Component Location...1681
Rear Platform Harness (W26) Wiring Diagram...1687
Rear Camera Harness (W27) Component Location—If Equipped...1690
Rear Camera Harness (W27) Wiring Diagram...1691
Fan Door Harness (W31) Component Location...1694
Fan Door Harness (W31) Wiring Diagram...1695
Engine Work Light Harness (W33) Component Location...1696
Engine Work Light Harness (W33) Wiring Diagram...1697
Midstructure Harness (W34) Component Location...1699
Midstructure Harness (W34) Wiring Diagram...1701
Transmission Harness (W35) Component Location...1704
Transmission Harness (W35) Wiring Diagram...1706
Tilt Console Harness (W36) Component Location...1707
Tilt Console Harness (W36) Wiring Diagram...1709
Electrohydraulic (EH) Main Cab Harness (W38) Component Location...1712
Electrohydraulic (EH) Main Cab Harness (W38) Wiring Diagram...1714
Electrohydraulic (EH) Main Frame Harness (W39) Component Location...1716
Electrohydraulic (EH) Main Frame Harness (W39) Wiring Diagram...1718
Electrohydraulic (EH) Draft Frame Harness (W40) Component Location...1720
Electrohydraulic (EH) Draft Frame Harness (W40) Wiring Diagram...1721
Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Component Location...1722
Electrohydraulic (EH) Armrest Harnesses (W44 and W45) Wiring Diagram...1724
Electrohydraulic (EH) Armrest Interlock Harnesses (W46 and W47) Component Location...1727
Electrohydraulic (EH) Armrest Interlock Harnesses (W46 and W47) Wiring Diagram...1728
Electrohydraulic (EH) Integrated Grade Control (IGC) Harnesses (W48 and W49) Component Location...1730
Electrohydraulic (EH) Integrated Grade Control (IGC) Harnesses (W48 and W49) Wiring Diagram...1731
Engine Interface Harness (W50) Component Location...1734
Engine Interface Harness (W50) Wiring Diagram...1736
Engine Harness (W55) Component Location—Engine 6090HDW01B...1737
Engine Harness (W55) Wiring Diagram—Engine 6090HDW01B...1739
Engine Harness (W56) Component Location—Engine 6090HDW04...1741
Engine Harness (W56) Wiring Diagram—Engine 6090HDW04...1743
License Plate Harness (W65) Component Location...1744
License Plate Harness (W65) Wiring Diagram...1745
Rear View Camera Display Harness (W67) Component Location...1746
Rear View Camera Display Harness (W67) Wiring Diagram...1747
JDLink™ Harnesses (W6002 and W6003) Component Location—If Equipped...1748
JDLink™ Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram—If Equipped...1750
JDLink™ Satellite (SAT) Harness (W6003) Wiring Diagram—If Equipped...1751
Group 15: Sub-System Diagnostics...1563
Controller Area Network (CAN) Theory of Operation...1756
Start and Charge Circuits Theory of Operation...1760
Park Brake Circuit Theory of Operation...1766
Advanced Display Unit (ADU) and Sealed Switch Module (SSM) Circuits Theory of Operation...1769
Engine Control Unit (ECU) Circuit Theory of Operation...1773
Transmission Control Unit (TCU) Circuit Theory of Operation...1778
Hydraulic Valve Controller (HVC) Circuit Theory of Operation...1789
Auxiliary Valve Controller (AVC) Circuit Theory of Operation...1798
Six Wheel Drive (6WD) Controller Circuit Theory of Operation...1805
Flex Load Controller (FLC) Circuit Theory of Operation...1811
Hydraulic Fan Speed and Fan Reversing Circuits Theory of Operation...1820
Differential Lock Circuit Theory of Operation...1824
Saddle Lock Circuit Theory of Operation...1828
Drive Lights, Marker Lights, Hazards, and Turn Lights Circuits Theory of Operation...1830
Work Lights Circuit Theory of Operation...1834
Brake Lights and Brake Accumulator Pressure Warning Circuit Theory of Operation...1837
Backup Lights Circuit Theory of Operation—If Equipped...1839
Beacon Light Circuit Theory of Operation—If Equipped...1841
Wipers and Washers Circuits Theory of Operation...1843
Rear Window Defog and Heated Side Mirrors Circuits Theory of Operation...1848
Air Conditioner, Heater, and Precleaner Circuits Theory of Operation...1850
JDLink™ Circuit Theory of Operation...1854
Group 16: Monitor Operation...1564
Advanced Display Unit (ADU)—Service Mode...1859
Advanced Display Unit (ADU)—Clear Codes...1861
Advanced Display Unit (ADU)—Show/Hide Main Menu...1862
Advanced Display Unit (ADU)—Enable Options...1864
Advanced Display Unit (ADU)—Tire Size...1865
Advanced Display Unit (ADU)—Fan Speed...1866
Advanced Display Unit (ADU)—Articulation Cal...1867
Advanced Display Unit (ADU)—Steering Cal...1868
Advanced Display Unit (ADU)—TCU Calibration...1869
Advanced Display Unit (ADU)—HWD Calibration...1870
Advanced Display Unit (ADU)—GP Auxiliary Valve Flows...1871
Advanced Display Unit (ADU)—GP Auxiliary Control Setup...1872
Group 20: References...1564
Flex Load Controller (FLC) Outputs...1876
Service ADVISOR™ Application...1879
Service ADVISOR™ Connection Procedure...1880
Reading Diagnostic Trouble Codes (DTC) With Service ADVISOR™ Application...1881
Intermittent Diagnostic Trouble Code (DTC) Diagnostics...1884
Cross Slope Diagnostics...1885
JDLink™ Connection Procedure—If Equipped...1894
Transmission Control Unit (TCU) Calibration...1895
6WD Controller Calibration (If Equipped)...1898
CAN Circuit Testing...1902
Electrical Component Specifications...1908
Alternator Test...1913
Transmission Control and Park Brake Lever Test...1915
Park/Neutral/Gear Position Switch Module and Forward/Reverse Switch Module Test...1917
Output Shaft Speed Sensor Test...1920
Inching Pedal Module Test...1921
Accelerator Pedal Sensor Test...1925
Hydraulic Pump Pressure Sensor Test...1927
Lower Windshield Wiper Proximity Switch Adjustment and Installation...1930
Electrical Component Checks...1932
Articulation Sensor Linkage Adjustment (Rear Steer)...1938
Electrohydraulic Valve Calibration Procedure...1940
Articulation Sensor Calibration Procedure...1943
Steering Angle Sensor Calibration Procedure...1944
Park/Neutral/Gear Position Switch Module and Forward/Reverse Switch Module Remove and Install...1945
Controller Remove and Install...1950
Steering Angle Sensor Remove and Install...1951
Connector Terminal Test...1955
Replace Weather Pack™ Connector...1958
Install Weather Pack™ Contact...1960
Replace DEUTSCH® Connectors...1962
Replace DEUTSCH® Rectangular or Triangular Connectors...1964
Install DEUTSCH® Contact...1966
Replace (Pull Type) Metri-Pack™ Connectors...1968
Replace (Push Type) Metri-Pack™ Connectors...1970
Replace CINCH CINCH is a trademark of the Cinch Co. Connectors...1565
Install CINCH CINCH is a trademark of the Cinch Co. Contact...1565
Repair 32 and 48 Way CINCH® Connectors...1975
Section 9016: Six Wheel Drive (6WD)...1979
Group 05: Theory of Operation...1979
6WD System Operation...1983
6WD Pump and Displacement Control Operation...1985
6WD Forward Operation...1986
6WD Pump and Motor Flushing Pump Operation...1989
6WD Charge Circuit Operation...1991
Flushing Valve and Operating Charge Pressure Regulating Valve Operation...1992
6WD Circuit Relief and Make-Up Valve Operation...1994
6WD Engagement Manifold Operation...1996
6WD Motor Operation...1998
6WD Wheel Operation...2000
6WD Precision Mode Operation...2002
6WD Inching Mode Operation...2004
Group 15: Diagnostic Information...1979
6WD System Schematic...2008
6WD System Component Location...2011
No Front Wheel Motion (Both Wheels)...1979
No Front Wheel Motion During Inching Operation (Both Wheels)...1979
No Front Wheel Motion (One Wheel)...1979
Intermittent or Erratic 6WD Operation...1979
6WD Charge Pressure Indicator Light On...1979
Hydraulic Oil Filter...1979
Hydraulic Oil Temperature Indicator Light On...1979
6WD System Oil Temperature Too Hot (6WD oil temperature indicator light on)...1979
Low Torque (One Wheel)...1979
Low Torque (Both Wheels)...1979
Wheel Overspeed (One Wheel)...1979
Operates in Low Speed Only (One Wheel)...1979
Operates in High Speed Only (One Wheel)...1979
Wheel(s) Will Not Stay in Neutral...1979
Operates in One Direction Only...1979
Wheels Rotate Opposite Each Other...1979
6WD Will Not Calibrate (No Diagnostic Trouble Codes)...1980
Group 20: Adjustments...1980
6WD Start-Up Procedure...2062
6WD Pump Control Neutral Adjustment...2064
Group 25: Tests...1980
6WD Oil Warm-Up Procedure...2069
6WD Planetary Brake Leakage Test...2070
6WD Neutral Charge Pressure Test...2073
6WD Neutral Charge Pressure Regulating Valve Test...2076
6WD Operating Charge Pressure Regulating Valve Test...2079
6WD Neutral Charge Pressure Balance Test...2083
6WD Pump Leakage Test...2086
6WD Motor Leakage Test...2087
Pressure Override Valve and 6WD Circuit Relief and Make-Up Valve Test...2092
6WD Motor Flushing Pump Relief Valve Test...2097
6WD Charge Pump Flow Test...2101
6WD Engagement Solenoid Valve Test...2102
Hydraulic Oil Cooler Bypass Valve Pressure Test...2104
Section 9020: Power Train...2106
Group 05: Theory of Operation...2106
DF180 Powershift Transmission Operation...2110
Differential Lock Operation...2112
Internal Park Brake Operation...2115
Rear Axle and Tandem Operation...2117
Group 15: Diagnostic Information...2106
Power Train Schematic...2120
Power Train Component Location...2122
Transmission Overfills With Oil...2106
Transmission Slippage...2106
Machine “Jumps” When Inching Pedal Engaged...2106
Machine Lacks Power Or Moves Slow...2106
Transmission Shifts Too Slow (Machine Stops When Changing Gears Under Load)...2106
Transmission Shifts Too Quickly...2106
Machine Will Not Move In Any Gear and Park Brake Indicator Light Is On (No Load Put On Engine When Shifted Into Gear)...2106
Machine Will Not Move (Load Put On Engine Or Engine Stalls When Shifted Into Gear)...2106
Low Pressure In Different Gears Using Same Proportional Solenoid Valve...2106
Machine Creeps In Neutral (Load Put On Engine When Service Brakes Are Applied)...2106
Machine Creeps In Gear With Inching Pedal Fully Depressed...2106
Transmission System Overheats...2106
Transmission Control and Park Brake Lever Does Not Move Freely...2106
Excessive Transmission Noise (Under Load or No Load)...2106
Transmission Engages In a Gear, but Not Gear Selected...2106
Transmission Fails To Change Gear From First Gear Selected...2106
Transmission Faults To Neutral...2106
Excessive Machine Vibration...2106
Erratic Transmission Oil Pressure...2106
Excessive Oil Pressure...2106
Low Oil Pressure In All Gears...2106
Low Pressure In One Gear But Correct In Other Gears...2106
Transmission Breather Oil Leakage...2106
Filter Or Filter Oil Lines Blow Out...2107
Low Lube Pressure In Some Gears But Correct In Other Gears...2107
Excessive Lube Pressure In Some Gears But Correct In Other Gears...2107
Low Transmission Cooler Inlet Pressure And Lube Pressure...2107
Park Brake Engages While Vehicle Is Moving...2107
Park Brake Will Not Release...2107
Park Brake Will Not Hold...2107
Park Brake Overheats...2107
Park Brake Noisy...2107
No Differential Lock Operation...2112
Differential Lock Slippage...2107
Excessive Differential and/or Axle Noise...2107
Group 25: Tests...2107
Differential Oil Warm-Up Procedure...2178
Differential Lock Valve Pressure Test...2180
Differential Lock Charge Pump Flow Test...2182
Differential Oil Cooler Differential Pressure Test...2184
Differential Oil Cooler Bypass Valve Pressure Test...2188
Transmission Oil Cooler Differential Pressure Test...2191
Park Brake Release Pressure Test...2195
Section 9025: Hydraulic System...2196
Group 05: Theory of Operation...2196
Hydraulic System Operation...2201
Hydraulic Pump Operation (S.N. —667937)...2203
Hydraulic Pump Operation (S.N. 667938— )...2205
Hydraulic Fan Pump Operation...2208
Hydraulic System Manifold Operation...2209
Control Valve Operation—Standard Controls...2211
Control Valve Operation—EH Controls...2215
Hydraulic Oil Filter Operation...2219
System Relief Valve Operation...2221
Circuit Relief Valve Operation...2222
Service Brake Valve Operation...2223
Service Brake Accumulator Operation...2225
Hydraulic Fan Drive Operation...2227
Steering System Operation...2231
Steering System Operation—EH Controls...2233
Load Sense Operation With All Functions in Neutral...2235
Load Sense Operation With One Function Activated...2237
Load Sense Operation With Multiple Functions Activated...2239
Wheel Lean, Articulation, Circle Side Shift, Blade Pitch, and Blade Side Shift Valve Operation...2242
Circle Rotate Valve Operation...2244
Saddle Locking Pin Valve Operation...2246
Blade Lift and Auxiliary Valve Operation...2248
Blade Impact Absorption System Operation...2251
Circle Drive Gearbox Operation-Without Slip Clutch...2254
Circle Drive Gearbox Operation-With Slip Clutch...2256
Dual Input Circle Drive Gearbox Operation—If Equipped...2259
Dual Input Circle Drive Gearbox (With Slip Clutch) Operation—If Equipped...2261
Hydraulic Oil Cooler Bypass Manifold Operation...2263
Group 15: Diagnostic Information...2196
Hydraulic System Schematic Master Legend...2268
Hydraulic System Schematic...2272
Hydraulic System Schematic Master Legend—EH Controls...2277
Hydraulic System Schematic—EH Controls...2282
Hydraulic System Component Location...2287
Hydraulic System Component Location—EH Controls...2292
No Hydraulics...2197
Hydraulic System Overheats...2197
Slow Hydraulic Functions...2197
Hydraulic Function (or Pump) Makes “Chattering” Noise...2197
Pump Appears To Be Stuck At Minimum Displacement...2197
Pump Appears To Be Stuck At Maximum Displacement...2197
Function Moves Too Fast...2197
Function Drifts Down...2197
Excessive Effort to Move Function Control Lever...2197
Individual Function Is Slow (Cycle Time Checked Slow)...2197
Slow or Hard Steering...2197
No Steering...2197
Erratic Steering...2197
Excessive Steering Wheel Turns to Steer Machine...2197
Wheels Move After Steering Wheel Stopped...2197
Excessive Vibration of Steering Wheel...2197
Steering Wheel Kickback...2197
Poor or No Brakes (Steering and Hydraulic System Operation Normal)...2197
Aggressive Brakes or Brakes Lock Up...2197
Brakes Drag...2197
Brakes Chatter or Noisy...2197
Delay in Braking...2197
Hydraulic Fan Does Not Reach Full Speed...2197
Hydraulic Fan Runs At Full Speed Only...2197
Hydraulic Fan Does Not Spin...2197
Hydraulic Fan Will Not Reverse Direction...2197
Group 25: Tests...2197
JT02156A Digital Pressure/Temperature Analyzer Kit Installation...2360
Hydraulic Oil Warm-Up Procedure...2361
Vacuum Pump Installation...2362
Hydraulic Pump Standby Pressure Hydraulic Pump Standby Pressure & Load Sense Standby Pressure Test{pgNO}2198 Load Sense Standby Pressure Test...2363
Load Sense Relief Valve Load Sense Relief Valve & Pump Relief Test{pgNO}2198 Pump Relief Test...2368
Load Sense Shuttle Valve Isolation Test—Standard Controls...2374
Load Sense Shuttle Valve Isolation Test—EH Controls...2380
Hydraulic Pump Leakage Test...2386
Hydraulic Pump Flow Test...2388
Service Brake Valve Pressure Test...2391
Service Brake Accumulator Precharge Test...2394
Service Brake Pressure Switch Test...2397
Service Brake Valve Leakage Test...2400
Hydraulic Cylinder Drift Test...2402
Hydraulic Cylinder Leakage Test...2404
Rotary Manifold Leakage Test...2407
Steering System Leakage Test...2411
Service Brake Accumulator Inlet Check Valve Leakage Test...2417
Blade Impact Absorption Accumulator Charge Pressure Test...2420
Blade Impact Absorption Accumulator Hydraulic Discharge Procedure...2423
Secondary Steering Accumulator Charge Pressure Test...2425
Blade Lift Relief Valve Test...2428
Circuit Relief Valve Test—Midmount Scarifier...2431
Saddle Locking Cylinder Pressure Reducing Valve Test...2433
System Relief Valve Pressure Test...2436
Hydraulic Fan Pump Pressure Test...2440
Hydraulic Fan Motor Speed Test...2443
Hydraulic Fan Pump Flow Test...2445
Hydraulic Fan Motor Case Drain Test...2448
Section 9031: Heating and Air Conditioning...2451
Group 05: Theory of Operation...2451
Air Conditioning System Cycle Of Operation...2454
Group 15: Diagnostic Information...2451
Air Conditioner and Heater Component Location...2459
Diagnose Air Conditioning System Malfunctions...2462
Air Conditioning System Does Not Operate...2451
Air Conditioner Does Not Cool Interior of Cab...2451
Air Conditioner Runs Constantly, Too Cold...2451
Diagnose Heater System Malfunctions...2473
Heater System Does Not Operate...2451
Heater Does Not Warm Interior of Cab...2451
Interior Windows Continue to Fog...2451
Group 25: Tests...2451
Refrigerant Cautions and Proper Handling...2485
Air Conditioner and Heater Operational Checks...2486
Refrigerant Leak Test...2490
R134a Oil Charge Capacity...2491
R134a Refrigerant Charge Capacity...2492
Air Conditioner Compressor Clutch Test...2493
Air Conditioner High/Low Pressure Switch Test...2494
Air Conditioner Freeze Control Switch Test...2496
Heater Blower Switch Test...2497
Heater Blower Resistor Test...2498
Heater Blower Motor Test...2500
R134a Air Conditioning System Test...2501
Operating Pressure Diagnostic Chart...2503
John Deere 770G, 770GP, 772G, and 772GP Motor Grader Diagnosis and Tests Service Technical Manual (TM13066X19)
