John Deere 750K, 850K Crawler Dozer Service Manual (Diagnostic, Operation, Test) TM13280X19

Reduce repair expenses with expert guidance! The JOHN DEERE 750K, 850K CRAWLER DOZER (DIAGNOSTIC, OPERATION, AND TEST) SERVICE MANUAL (PN TM13280X19) provides all the essential details to simplify maintenance and repairs.

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📑 Table of Contents:

- FOREWORD

- 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
- Work In Ventilated Area
- Prevent Fires
- Prevent Battery Explosions
- Handle Chemical Products Safely
- Decommissioning — Proper Recycling and Disposal of Fluids and Components
- Prepare for Emergencies
- Add Cab Guarding for Special Uses
- 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 and Machine Damage
- Add and Operate Attachments Safely
- Park and Prepare for Service Safely
- Service Cooling System Safely
- Remove Paint Before Welding or Heating
- Make Welding Repairs Safely
- Drive Metal Pins Safely
- Section 9001 - DIAGNOSTICS
- Group 10 - Engine Control Unit (ECU) Diagnostic Trouble Codes
- Engine Control Unit (ECU) Diagnostic Trouble Codes

- Section 9005 - OPERATIONAL CHECKOUT PROCEDURE
- Group 10 - Operational Checkout Procedure
- Operational Checks—Switched Power ON, Engine ON
- Display and Clear Trouble Codes
- Grouser Wear, Bent Track Shoe, and Loose Hardware Checks
- Sprocket Wear Check
- Track Sag, Roller and Idler Leakage Checks
- Fan Check
- Fan Guard Check
- Engine Oil Level Check
- Belt Check
- Fuel Water Separator Check
- Engine Mounts Check
- Coolant Level and Condition Check
- Radiator/Heater Hoses and Clamps Check
- Fuel Cap Check
- Seat Belt Check
- Cab Door and Window Seals Check
- Battery Disconnect Switch Check
- Battery Disconnect Switch Check (continued)
- Battery Check
- Horn Check
- Indicator Check
- Gauge Check
- Seat Control Checks
- Drive Lights Check
- Work Lights Check
- Front Wiper Check
- Wiper Speed Check
- Rear Wiper Check
- Front and Rear Washer Motor Check
- Left and Right Door Wiper Check
- Left and Right Door Washer Motor Check
- Cab Interior Light Check
- Start Circuit Check
- Start Circuit Check (continued)
- Monitor Check with Engine Running
- Park Lock Lever Switch Check
- Alternator Output Check
- Engine Speed Control Switch Check
- Air Filter Restriction Check
- Cooling Fan Circuit Check
- Reversing Fan Circuit Check
- Hydraulic Enable Solenoid Check
- Park Brake Circuit Check
- Park Brake Valve Leakage Check
- Transmission Control Lever (TCL) Check
- Transmission Control Lever (TCL) Speed Change Check
- Decelerator/Brake Pedal and Park Brake Check
- Decelerator Mode Check
- Tracking and Maximum Speed Check
- Tracking Check
- Reverse Ratio Check
- Blade Control Lever Check
- Hydraulic Controls Check
- Quick-Drop Valve Check
- Blade Float Check
- Cycle Time Check (750K)
- Cycle Time Check (850K)
- Power Pitch Check (if equipped)
- Blade Angle Check (if equipped)
- Return-to-Pitch Check (if equipped)
- Blade Shake Check (if equipped)
- Air Conditioner Check
- Heater Blower Motor Check
- Under Seat Heater Check
- Display and Clear Trouble Codes
- Grouser Wear, Bent Track Shoe, and Loose Hardware Checks
- Sprocket Wear Check
- Track Sag, Roller and Idler Leakage Checks
- Fan Check
- Fan Guard Check
- Engine Oil Level Check
- Belt Check
- Fuel Water Separator Check
- Engine Mounts Check
- Coolant Level and Condition Check
- Radiator/Heater Hoses and Clamps Check
- Fuel Cap Check
- Seat Belt Check
- Cab Door and Window Seals Check
- Battery Disconnect Switch Check
- Battery Disconnect Switch Check (continued)
- Battery Check
- Horn Check
- Indicator Check
- Gauge Check
- Seat Control Checks
- Drive Lights Check
- Work Lights Check
- Front Wiper Check
- Wiper Speed Check
- Rear Wiper Check
- Front and Rear Washer Motor Check
- Left and Right Door Wiper Check
- Left and Right Door Washer Motor Check
- Cab Interior Light Check
- Start Circuit Check
- Start Circuit Check (continued)
- Monitor Check with Engine Running
- Park Lock Lever Switch Check
- Alternator Output Check
- Engine Speed Control Switch Check
- Air Filter Restriction Check
- Cooling Fan Circuit Check
- Reversing Fan Circuit Check
- Hydraulic Enable Solenoid Check
- Park Brake Circuit Check
- Park Brake Valve Leakage Check
- Transmission Control Lever (TCL) Check
- Transmission Control Lever (TCL) Speed Change Check
- Decelerator/Brake Pedal and Park Brake Check
- Decelerator Mode Check
- Tracking and Maximum Speed Check
- Tracking Check
- Reverse Ratio Check
- Blade Control Lever Check
- Hydraulic Controls Check
- Quick-Drop Valve Check
- Blade Float Check
- Cycle Time Check (750K)
- Cycle Time Check (850K)
- Power Pitch Check (if equipped)
- Blade Angle Check (if equipped)
- Return-to-Pitch Check (if equipped)
- Blade Shake Check (if equipped)
- Air Conditioner Check
- Heater Blower Motor Check
- Under Seat Heater Check

- Section 9010 - ENGINE
- Group 05 - Theory of Operation
- John Deere Engine
- Cold Start Aid System Theory of Operation—If Equipped
- Fast Fill Fuel System Theory of Operation—If Equipped
- Group 10 - System Diagrams
- Engine Cooling System Component Location
- Engine Fuel System Component Location
- Engine Intake and Exhaust Component Location
- Group 15 - Diagnostic Information
- John Deere Diesel Engine
- Fast Fill Fuel System Underfill Diagnostic Procedure
- Machine Angle Check
- Filler Valve Check
- Inlet Shutoff Valve Screen Check
- Signal Line Check
- Fuel Level Control/Float Check
- Machine Angle Check
- Filler Valve Check
- Inlet Shutoff Valve Screen Check
- Signal Line Check
- Fuel Level Control/Float Check
- Fast Fill Fuel System Overfill Diagnostic Procedure
- Machine Angle Check
- Signal Line Leak Check
- Machine Angle Check
- Signal Line Leak Check
- Fast Fill Fuel System Nozzle Leaks at Receiver Diagnostic Procedure
- Filler Valve Check
- Inlet Receiver Check
- Filler Valve Check
- Inlet Receiver Check
- Group 20 - Adjustments
- John Deere Engine
- Service Filter Cleaning
- Group 25 - Tests
- John Deere Engine
- Low-Pressure Fuel Pump Pressure Test
- Fluid Sampling Procedure—If Equipped
- Engine Idle Speeds and Auto-Shutdown Check
- Exhaust Emissions Test Point

- Section 9015 - ELECTRICAL SYSTEM
- Group 05 - Theory of Operation
- Start and Charge Circuits Theory of Operation
- Park Brake Circuit Theory of Operation
- Controller Area Network (CAN) Theory of Operation
- Engine Control Unit (ECU) Circuit Theory of Operation
- Vehicle Control Unit (VCU) Circuit Theory of Operation
- Transmission Control Unit (TCU) Circuit Theory of Operation
- Standard Display Monitor (SDM) Circuit Theory of Operation
- Primary Display Unit (PDU) Circuit Theory of Operation
- Integrated Grade Control (IGC) Circuit Theory of Operation—If Equipped
- Exhaust Aftertreatment Circuit Theory of Operation
- Group 10 - System Diagrams
- Electrical Diagram Information
- Electrical Schematic Symbols
- Fuse and Relay Specifications
- System Functional Schematic, Component Location, and Wiring Diagram Master Legend
- System Functional Schematic
- System Functional Schematic, Component Location, and Wiring Diagram Master Legend—Integrated Grade Control (IGC)
- System Functional Schematic—Integrated Grade Control (IGC)
- Aftertreatment Harness (W10) Component Location
- Aftertreatment Harness (W10) Wiring Diagram
- Engine Auxiliary Harness (W11) Component Location
- Engine Auxiliary Harness (W11) Wiring Diagram
- Cooling Package Harness (W12) Component Location
- Cooling Package Harness (W12) Wiring Diagram
- Cooling Package (IGC Controls) Harness (W13) Component Location
- Cooling Package (IGC Controls) Harness (W13) Wiring Diagram
- Fan Harness (W14) Component Location
- Fan Harness (W14) Wiring Diagram
- Vehicle Harness (W15) Component Location
- Vehicle Harness (W15) Wiring Diagram
- Vehicle (IGC Controls) Harness (W16) Component Location
- Vehicle (IGC Controls) Harness (W16) Wiring Diagram
- Control Valve (PAT, 4-Spool) Harness (W17) Component Location
- Control Valve (PAT, 4-Spool) Harness (W17) Wiring Diagram
- Control Valve (PAT, 5-Spool) Harness (W18) Wiring Diagram
- Control Valve (OSD) Harness (W19) Component Location
- Control Valve (OSD) Harness (W19) Wiring Diagram
- Engine Compartment Light Switch Harness (W20) Component Location
- Engine Compartment Light Switch Harness (W20) Wiring Diagram
- Fuel Tank Harness (W21) Component Location
- Fuel Tank Harness (W21) Wiring Diagram
- Operator′s Station Harness (W22) Component Location
- Operator′s Station Harness (W22) Wiring Diagram
- Operator′s Station (IGC Controls) Harness (W23) Component Location
- Operator′s Station (IGC Controls) Harness (W23) Wiring Diagram
- Front Dash (PDU) Harness (W24) Component Location
- Front Dash (PDU) Harness (W24) Wiring Diagram
- Front Dash (SDM) Harness (W25) Component Location
- Front Dash (SDM) Harness (W25) Wiring Diagram
- Left Console Harness (W26) Component Location
- Left Console Harness (W26) Wiring Diagram
- Cab Roof Harness (W27) Component Location
- Cab Roof Harness (W27) Wiring Diagram
- Canopy Roof Harness (W28) Component Location
- Canopy Roof Harness (W28) Wiring Diagram
- Radio Auxiliary Harness (W29) Component Location
- Heater and Air Conditioner Harness (W30) Component Location
- Heater and Air Conditioner Harness (W30) Wiring Diagram
- Condenser Harness (W31) Component Location
- Condenser Harness (W31) Wiring Diagram
- Under Seat Heater Harness (W32) Component Location
- Under Seat Heater Harness (W32) Wiring Diagram
- Dome Light Harness (W33) Component Location
- Dome Light Harness (W33) Wiring Diagram
- Power Outlet Harness (W34) Component Location
- Power Outlet Harness (W34) Wiring Diagram
- Blade Pitch Harnesses (W35, W36, and W37) Component Location
- Blade Pitch Frame Harness (W35) Wiring Diagram
- Blade Pitch Harness (W36) Component Location
- Blade Pitch Harness (W36) Wiring Diagram
- Pitch Cylinder Harness (W37) Component Location
- Pitch Cylinder Harness (W37) Wiring Diagram
- Engine Harness (W38) Component Location
- Engine Harness (W38) Wiring Diagram
- Fuel Injector Harness (W39) Component Location
- Fuel Injector Harness (W39) Wiring Diagram
- Glow Plug Harnesses (W40, W41, and W42) Component Location
- Glow Plug Harnesses (W40, W41, and W42) Wiring Diagrams
- 750K Motor Speed Sensor Harnesses (W43 and W44) Component Location
- 750K Motor Speed Sensor Harnesses (W43 and W44) Wiring Diagrams
- JDLink™ Harnesses (W6002 and W6003) Component Location
- Modular Telematics Gateway (MTG) Harness (W6002) Wiring Diagram
- Satellite (SAT) Harness (W6003) Wiring Diagram
- Group 15 - Diagnostic Information
- Service ADVISOR™ Diagnostic Application
- Service ADVISOR™ Connection Procedure
- Using Service ADVISOR™ Remote
- Reading Diagnostic Trouble Codes with Service ADVISOR™ Diagnostic Application
- Intermittent Diagnostic Trouble Code (DTC) Diagnostics
- Diagnostic Trouble Codes—After Machine Repair
- Electrical Component Specifications
- Group 16 - Display Unit Operation
- Accessing Service Mode, SDM
- Diagnostics—Clear Stored Diagnostic Trouble Codes, SDM
- Operation—Exhaust Filter, SDM
- Diagnostics—Machine Information, SDM
- Diagnostics—TCU Diagnostics, SDM
- Operation—Software Delivery, SDM
- Setup—Machine Setup, SDM
- Accessing Service Mode, PDU
- Diagnostics—Clear Stored Diagnostic Trouble Codes, PDU
- Operation—Exhaust Filter, PDU
- Diagnostics—Machine Information, PDU
- Operation—Software Delivery, PDU
- Diagnostics—Transmission Test Modes, PDU
- Setup—Machine Setup, PDU
- 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 18 - Topcon Integrated Grade Control (IGC) Operation (Factory Installation)
- Topcon Integrated Grade Control (IGC) Circuit Schematic (Factory Installation)
- Topcon Integrated Grade Control (IGC) Circuit Theory of Operation (Factory Installation)
- IGC Controller/Receiver Harnesses (W45 and W46) Component Location
- IGC Controller/Receiver Harness 1 (W45) Wiring Diagram
- IGC Controller/Receiver Harness 2 (W46) Wiring Diagram
- IGC Display Unit Harness (W47) Component Location
- IGC Display Unit Harness (W47) Wiring Diagram
- IGC Grille Harness (W48) Component Location
- IGC Grille Harness (W48) Wiring Diagram
- Group 20 - Adjustments
- Transmission Control Unit (TCU) Calibration
- Hydraulic Valve Controller (HVC) Calibration
- Decelerator/Brake Pedal Adjustment
- Transmission Control Lever (TCL) Adjustment
- Group 25 - Tests
- Controller Area Network (CAN) Diagnostics
- System Check
- Service ADVISOR Fuse Test
- CAN Termination Resistor Check
- CAN High Wire Voltage Check
- CAN Low Wire Voltage Check
- CAN High Wire Circuit Check
- CAN Low Wire Circuit Check
- CAN Circuit Short to Ground Check
- CAN High/CAN Low Short Check
- Controller Fuse Check
- Controller Check
- System Check
- Service ADVISOR Fuse Test
- CAN Termination Resistor Check
- CAN High Wire Voltage Check
- CAN Low Wire Voltage Check
- CAN High Wire Circuit Check
- CAN Low Wire Circuit Check
- CAN Circuit Short to Ground Check
- CAN High/CAN Low Short Check
- Controller Fuse Check
- Controller Check
- Alternator Test Procedure
- Wire Harness Test
- Relay Test

- Section 9025 - HYDRAULIC SYSTEM
- Group 05 - Theory of Operation
- Hydraulic System Operation
- Hydraulic Pump Operation
- Pressure Reducing Valve Operation
- Pilot Control Valve Operation
- Hydraulic Control Valve Operation
- Hydraulic Control Valve Operation—IGC
- Load Sense Circuit Operation
- Load Sense Circuit Operation—IGC
- Engine Overspeed Protection Valve Operation
- Hydraulic System Relief Valve Operation
- Circuit Relief Valve with Anticavitation Operation
- Hydraulic Oil Filter Manifold Operation
- Blade Angle Operation
- Power Pitch Operation—IGC
- Ripper Operation
- Ripper Operation—IGC
- Hydraulic Cylinder Operation
- Quick-Drop Valve Operation
- Mechanical Angle Blade Operation
- Hydraulic Reversing Fan Drive Operation
- Group 10 - System Diagrams
- Hydraulic System Schematic
- Hydraulic System Schematic—IGC
- Hydraulic System Line Identification
- Hydraulic System Line Identification—IGC
- Main Hydraulic Component Location
- Main Hydraulic Component Location—IGC
- Ripper Hydraulic Component Location
- Ripper Hydraulic Component Location—IGC
- Winch Ready Hydraulic Component Location
- Winch Ready Hydraulic Component Location—IGC
- Group 15 - Diagnostic Information
- Blade Float Does Not Work Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Hydraulics Not Enabled
- Hydraulic Enable Switch Malfunction
- Pump Load Sense Differential and System Pressure Low
- Hydraulic Enable Solenoid Stuck or Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Diagnostic Trouble Codes (DTCs)
- Circuit Relief Valve Stuck Open
- Anticavitation Valve Stuck Open
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulic Oil Cold
- Engine Speed Slow
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Pump Load Sense Differential and System Pressure Low
- Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Hydraulic Control Valve Spool Binding
- Hydraulic Pump Worn or Damaged
- Pump Load Sense Differential and System Pressure Low
- Circuit Relief Valve Pressure Low
- Pilot Control Pressure Low
- Anticavitation Valve Stuck Open
- Hydraulic Pump Worn or Damaged
- Hydraulic Cylinders Leaking Internally
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Quick-Drop Valve Leaking
- Hydraulic Control Valve Spool Leaking
- Hydraulic Oil Cooling System Check
- Oil Viscosity Incorrect
- Hydraulic Oil Cooler Fins Plugged or Obstructed
- Thermal Bypass Valve Not Opening
- Hydraulic System Relief Valve Stuck Open or Leaking
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Engine Overspeed Protection Valve Stuck On
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Pump Worn or Damaged
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Pump Worn or Damaged
- Blade Float Disabled in Standard Display Monitor (SDM)
- Diagnostic Trouble Codes (DTCs)
- Pilot Control Pressure Low
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulics Not Enabled
- Hydraulic Enable Switch Malfunction
- Pump Load Sense Differential and System Pressure Low
- Hydraulic Enable Solenoid Stuck or Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Diagnostic Trouble Codes (DTCs)
- Circuit Relief Valve Stuck Open
- Anticavitation Valve Stuck Open
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulic Oil Cold
- Engine Speed Slow
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Pump Load Sense Differential and System Pressure Low
- Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Hydraulic Control Valve Spool Binding
- Hydraulic Pump Worn or Damaged
- Pump Load Sense Differential and System Pressure Low
- Circuit Relief Valve Pressure Low
- Pilot Control Pressure Low
- Anticavitation Valve Stuck Open
- Hydraulic Pump Worn or Damaged
- Hydraulic Cylinders Leaking Internally
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Quick-Drop Valve Leaking
- Hydraulic Control Valve Spool Leaking
- Hydraulic Oil Cooling System Check
- Oil Viscosity Incorrect
- Hydraulic Oil Cooler Fins Plugged or Obstructed
- Thermal Bypass Valve Not Opening
- Hydraulic System Relief Valve Stuck Open or Leaking
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Engine Overspeed Protection Valve Stuck On
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Pump Worn or Damaged
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Pump Worn or Damaged
- Blade Float Disabled in Standard Display Monitor (SDM)
- Diagnostic Trouble Codes (DTCs)
- Pilot Control Pressure Low
- Hydraulic Control Valve Spool Binding
- Blade Response Not Smooth Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Hydraulics Not Enabled
- Hydraulic Enable Switch Malfunction
- Pump Load Sense Differential and System Pressure Low
- Hydraulic Enable Solenoid Stuck or Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Diagnostic Trouble Codes (DTCs)
- Control Valve Solenoid Spool Stuck
- Circuit Relief Valve Stuck Open
- Anticavitation Valve Stuck Open
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulic Function Speed Set Low
- Hydraulic Control Valve Not Calibrated
- Hydraulic Oil Cold
- Engine Speed Slow
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Pump Load Sense Differential and System Pressure Low
- Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Hydraulic Control Valve Spool Binding
- Hydraulic Pump Worn or Damaged
- Pump Load Sense Differential and System Pressure Low
- Circuit Relief Valve Pressure Low
- Pilot Control Pressure Low
- Anticavitation Valve Stuck Open
- Hydraulic Pump Worn or Damaged
- Hydraulic Cylinders Leaking Internally
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Quick-Drop Valve Leaking
- Hydraulic Control Valve Spool Leaking
- Hydraulic Oil Cooling System Check
- Oil Viscosity Incorrect
- Hydraulic Oil Cooler Fins Plugged or Obstructed
- Thermal Bypass Valve Not Opening
- Hydraulic System Relief Valve Stuck Open or Leaking
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Engine Overspeed Protection Valve Stuck On
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Pump Worn or Damaged
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Pump Worn or Damaged
- Blade Float Disabled in Primary Display Unit (PDU)
- Diagnostic Trouble Codes (DTCs)
- Pilot Control Pressure Low
- Blade Control Lever Malfunction
- Control Valve Solenoid Spool Stuck
- Hydraulic Control Valve Spool Binding
- Hydraulic Valve Calibration
- Electrical Connection to Valve Section Solenoids Intermittent
- Valve Section Solenoid Spool Binding
- Pump Load Sense Differential and System Pressure Low
- Pump Load Sense Control Spool Binding
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulics Not Enabled
- Hydraulic Enable Switch Malfunction
- Pump Load Sense Differential and System Pressure Low
- Hydraulic Enable Solenoid Stuck or Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Diagnostic Trouble Codes (DTCs)
- Control Valve Solenoid Spool Stuck
- Circuit Relief Valve Stuck Open
- Anticavitation Valve Stuck Open
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Control Valve Spool Binding
- Diagnostic Trouble Codes (DTCs)
- Hydraulic Function Speed Set Low
- Hydraulic Control Valve Not Calibrated
- Hydraulic Oil Cold
- Engine Speed Slow
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Pump Load Sense Differential and System Pressure Low
- Pilot Control Pressure Low
- Hydraulic System Relief Valve Stuck Open
- Hydraulic Control Valve Spool Binding
- Hydraulic Pump Worn or Damaged
- Pump Load Sense Differential and System Pressure Low
- Circuit Relief Valve Pressure Low
- Pilot Control Pressure Low
- Anticavitation Valve Stuck Open
- Hydraulic Pump Worn or Damaged
- Hydraulic Cylinders Leaking Internally
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Quick-Drop Valve Leaking
- Hydraulic Control Valve Spool Leaking
- Hydraulic Oil Cooling System Check
- Oil Viscosity Incorrect
- Hydraulic Oil Cooler Fins Plugged or Obstructed
- Thermal Bypass Valve Not Opening
- Hydraulic System Relief Valve Stuck Open or Leaking
- Circuit Relief Valve Stuck Open or Leaking
- Anticavitation Valve Stuck Open or Leaking
- Engine Overspeed Protection Valve Stuck On
- Hydraulic Lines Blocked or Damaged
- Hydraulic Cylinders Leaking Internally
- Hydraulic Pump Worn or Damaged
- Pump Suction Line Air Leak
- Hydraulic Oil Level Low
- Oil Viscosity Incorrect
- Hydraulic Lines Blocked or Damaged
- Hydraulic Pump Worn or Damaged
- Blade Float Disabled in Primary Display Unit (PDU)
- Diagnostic Trouble Codes (DTCs)
- Pilot Control Pressure Low
- Blade Control Lever Malfunction
- Control Valve Solenoid Spool Stuck
- Hydraulic Control Valve Spool Binding
- Hydraulic Valve Calibration
- Electrical Connection to Valve Section Solenoids Intermittent
- Valve Section Solenoid Spool Binding
- Pump Load Sense Differential and System Pressure Low
- Pump Load Sense Control Spool Binding
- Hydraulic Control Valve Spool Binding
- Hydraulic Fan Does Not Reach Full Speed Diagnostic Procedure
- DTC Check
- Hydraulic Fan Speed Check
- Hydraulic Fan Proportional Relief Solenoid Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Pump Flow Check
- Hydraulic Fan Motor Case Drain Check
- DTC Check
- Hydraulic Fan Speed Check
- Hydraulic Fan Proportional Relief Solenoid Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Pump Flow Check
- Hydraulic Fan Motor Case Drain Check
- Hydraulic Fan Runs at Full Speed Only Diagnostic Procedure
- DTC Check
- Hydraulic Fan Proportional Relief Solenoid Check
- Hydraulic Fan Reversing Valve Return Line Check
- DTC Check
- Hydraulic Fan Proportional Relief Solenoid Check
- Hydraulic Fan Reversing Valve Return Line Check
- Hydraulic Fan Does Not Spin Diagnostic Procedure
- DTC Check
- Hydraulic Fan Motor/Fan Coupling Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Reversing Valve Check
- Hydraulic Fan Pump Flow Check
- DTC Check
- Hydraulic Fan Motor/Fan Coupling Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Reversing Valve Check
- Hydraulic Fan Pump Flow Check
- Hydraulic Fan Will Not Reverse Direction Diagnostic Procedure
- DTC Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Reversing Valve Check
- DTC Check
- Hydraulic Fan Reversing Solenoid Check
- Hydraulic Fan Reversing Valve Check
- Group 25 - Tests
- JT02156A Digital Pressure and Temperature Analyzer Kit Installation
- Ultra Clean® Hand Launcher
- Hydraulic Oil Cleanup Procedure
- Hydraulic Accumulator Discharge Procedure
- Hydraulic Accumulator Precharge Test
- Pump Load Sense Differential and System Pressure (Load Sense Relief) Test and Adjustment
- Pump Load Sense Differential and System Pressure (Load Sense Relief) Test and Adjustment—IGC
- Pump Cut-Off Pressure Test and Adjustment
- Pump Cut-Off Pressure Test and Adjustment—IGC
- Hydraulic System Relief Valve Test
- Hydraulic System Relief Valve Test—IGC
- Circuit Relief Valve Test
- Cylinder Function Drift Test
- Cylinder Leakage Test
- Pressure Reducing Valve Pressure Test and Adjustment
- Hydraulic Pump Flow Test
- Hydraulic Pump Case Drain Test
- Fan Pump Flow Test
- Fan Motor Speed Test
- Fan Motor Case Drain Test

- Section 9026 - HYDROSTATIC SYSTEM
- Group 05 - Theory of Operation
- Hydrostatic System Operation
- Transmission Control Circuit Operation (Flow Chart)
- Hydrostatic Pump Operation
- Pump Pressure Control Pilot (PCP) Operation
- Pump Displacement Control Valve (PDCV) Operation
- Multi-Function Valve Operation
- Charge Pump Operation
- Hydraulic Integrated Circuit (HIC) Valve Operation
- Neutral Charge Relief Valve Operation
- Hydrostatic Charge Oil Filter Operation
- Park Brake Valve Operation
- Oil Cooler and Reservoir Bypass Operation
- Hydrostatic Motor Operation
- Flushing Valve and Operating Charge Relief Valve Operation
- Hydrostatic Cold Start Valve Operation
- Group 10 - System Diagrams
- Hydrostatic System Schematic—Neutral (Park Brake On)
- Hydrostatic System Component Location
- Hydrostatic System Line Identification
- Park Brake System Component Location
- Hydrostatic System Diagram—Neutral (Park Brake On)
- Hydrostatic System Diagram—Reverse (Slow Speed)
- Hydrostatic System Diagram—Forward (Fast Speed)
- Group 15 - Diagnostic Information
- Overheating Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- All Systems Running Hot
- Hydrostatic Oil Cooler and Tank Bypass Valves Check
- Transmission Oil Level Check
- Temperature Sensor Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Tracker OFF Check
- Motor Shift Solenoid Valve Check
- Transmission Efficiency Check
- Flushing Valve Check
- Diagnostic Trouble Codes (DTCs)
- All Systems Running Hot
- Hydrostatic Oil Cooler and Tank Bypass Valves Check
- Transmission Oil Level Check
- Temperature Sensor Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Tracker OFF Check
- Motor Shift Solenoid Valve Check
- Transmission Efficiency Check
- Flushing Valve Check
- Low Charge Pressure Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Transmission Oil Level Check
- Hydraulic Blade Functions Check
- Charge Pressure Sensor Check
- Hydrostatic Cold Start Valve Check
- Transmission Efficiency Check
- Flushing Valve Check
- Park Brake Check
- Shuttle Valve Check
- Neutral and Operating Charge Pressure Check
- Charge Pump Flow Check
- Diagnostic Trouble Codes (DTCs)
- Transmission Oil Level Check
- Hydraulic Blade Functions Check
- Charge Pressure Sensor Check
- Hydrostatic Cold Start Valve Check
- Transmission Efficiency Check
- Flushing Valve Check
- Park Brake Check
- Shuttle Valve Check
- Neutral and Operating Charge Pressure Check
- Charge Pump Flow Check
- Mistrack or Index Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Track Tension Check
- Tracker OFF Check
- Motor Shift Solenoid Valve Check
- Transmission Control Unit (TCU) Calibration Check
- Neutral and Operating Charge Pressure Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Transmission Efficiency Check
- Flushing Valve Check
- Pump Displacement Control Valve (PDCV) Check
- Diagnostic Trouble Codes (DTCs)
- Track Tension Check
- Tracker OFF Check
- Motor Shift Solenoid Valve Check
- Transmission Control Unit (TCU) Calibration Check
- Neutral and Operating Charge Pressure Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Transmission Efficiency Check
- Flushing Valve Check
- Pump Displacement Control Valve (PDCV) Check
- Machine Will Not Reach Full Speed Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Cold Operating Conditions Check
- Engine Speed Check
- Transmission Speed Check
- Tracker OFF Check
- Neutral and Operating Charge Pressure Check
- Transmission Control Unit (TCU) Calibration Check
- Hydrostatic Motor Minimum Displacement Stop Screw Check
- Diagnostic Trouble Codes (DTCs)
- Cold Operating Conditions Check
- Engine Speed Check
- Transmission Speed Check
- Tracker OFF Check
- Neutral and Operating Charge Pressure Check
- Transmission Control Unit (TCU) Calibration Check
- Hydrostatic Motor Minimum Displacement Stop Screw Check
- Low Power Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Track Tension Check
- Multi-Function Relief Valve Check
- Motor Shift Solenoid Valve Check
- Neutral and Operating Charge Pressure Check
- Tracker OFF Check
- Transmission Efficiency Check
- Flushing Valve Check
- Transmission Control Unit (TCU) Calibration Check
- Park Brake Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Diagnostic Trouble Codes (DTCs)
- Track Tension Check
- Multi-Function Relief Valve Check
- Motor Shift Solenoid Valve Check
- Neutral and Operating Charge Pressure Check
- Tracker OFF Check
- Transmission Efficiency Check
- Flushing Valve Check
- Transmission Control Unit (TCU) Calibration Check
- Park Brake Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Engine Starts But One or Both Tracks Will Not Move Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Park Brake Check
- Neutral and Operating Charge Pressure Check
- Multi-Function Relief Valve Check
- Motor Shift Solenoid Valve Check
- Pump Manual Override Check
- System Pressure Check
- Pump Servo Pressure Check
- Pressure Control Pilot (PCP) Check
- Pump Displacement Control Valve (PDCV) Check
- Diagnostic Trouble Codes (DTCs)
- Park Brake Check
- Neutral and Operating Charge Pressure Check
- Multi-Function Relief Valve Check
- Motor Shift Solenoid Valve Check
- Pump Manual Override Check
- System Pressure Check
- Pump Servo Pressure Check
- Pressure Control Pilot (PCP) Check
- Pump Displacement Control Valve (PDCV) Check
- TCU Calibration Malfunctions Diagnostic Procedure
- Diagnostic Trouble Codes (DTCs)
- Begin Calibration Process Check
- Primary Display Unit (PDU) or Standard Display Monitor (SDM) Check
- PDU or SDM Park Lock Status Check
- VCU Circuit Harness Check
- Sensor Portion of Calibration Check
- Sensor Output Check
- Pump Threshold Portion of Calibration Check
- Pump Threshold DTC Check
- Motor Speed Display Check
- Pressure Control Pilot Test Check
- Pump Displacement Control Valve Turn Check
- Pump Maximum Portion of Calibration Check
- Max Pump Calibration DTC Check
- Motor Shift Solenoid Valve Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Track Tension Check
- Engine Speed Check
- Transmission Speed Check
- Neutral and Operating Charge Pressure Check
- Transmission Efficiency Check
- Flushing Valve Check
- Motor Maximum Portion of Calibration Check
- Max Motor Calibration DTC Check
- Diagnostic Trouble Codes (DTCs)
- Begin Calibration Process Check
- Primary Display Unit (PDU) or Standard Display Monitor (SDM) Check
- PDU or SDM Park Lock Status Check
- VCU Circuit Harness Check
- Sensor Portion of Calibration Check
- Sensor Output Check
- Pump Threshold Portion of Calibration Check
- Pump Threshold DTC Check
- Motor Speed Display Check
- Pressure Control Pilot Test Check
- Pump Displacement Control Valve Turn Check
- Pump Maximum Portion of Calibration Check
- Max Pump Calibration DTC Check
- Motor Shift Solenoid Valve Check
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Check
- Track Tension Check
- Engine Speed Check
- Transmission Speed Check
- Neutral and Operating Charge Pressure Check
- Transmission Efficiency Check
- Flushing Valve Check
- Motor Maximum Portion of Calibration Check
- Max Motor Calibration DTC Check
- Group 25 - Tests
- Ultra Clean® Hand Launcher
- Machine Supporting Procedure
- Transmission Oil Warm-Up Procedure
- Releasing Park Brake to Tow the Machine
- Hydrostatic Pump and Motor Initial Start-Up Procedure
- Hydrostatic Pump Flushing Procedure
- Hydraulic Oil Cleanup Procedure
- Pressure Control Pilot (PCP) Manual Override Test
- Pressure Control Pilot (PCP) Test
- Pressure Control Pilot (PCP) Internal Adjustment
- Multi-Function Relief Valve Test
- Transmission Efficiency Test
- Transmission Efficiency Test—IGC
- Neutral Charge Relief and Operating Charge Relief Pressure Test
- Pump Displacement Control Valve (PDCV) Neutral (Null) Adjustment
- Pump Servo Pressure Test
- Motor Shift Solenoid Valve Adjustment
- Hydrostatic Motor Min./Max. Angle Servo Piston Pressure Test
- Charge Pump Flow Test
- Charge Pressure Sensor Test
- Hydrostatic Cold Start Valve Test
- Hydrostatic Oil Cooler Bypass Test
- Hydrostatic Oil Reservoir Bypass Test
- Park Brake Test
- Park Brake Relief Valve Test
- Ball Shuttle Valve Test
- Cab Tilt Relief Valve Test
- Hand Pump Bleed Procedure

- Section 9031 - HEATING AND AIR CONDITIONING
- Group 05 - Theory of Operation
- Air Conditioning System Cycle of Operation
- Group 10 - System Diagrams
- Heating and Air Conditioning System Component Location
- Under Seat Heater System Component Location
- Group 15 - Diagnostic Information
- Air Conditioning System Does Not Operate Diagnostic Procedure
- Diagnostic Trouble Code Check
- Machine Settings Check
- Fuse Check
- Blower Motor Speed Switch Check
- Air Conditioner On/Off Switch Check
- Blower Motor Speed Resistor Check
- Blower Motor Check
- Air Conditioner Freeze Control Switch Check
- Air Conditioner High/Low-Pressure Switch Check
- Air Conditioner Compressor Clutch Solenoid Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Diagnostic Trouble Code Check
- Machine Settings Check
- Fuse Check
- Blower Motor Speed Switch Check
- Air Conditioner On/Off Switch Check
- Blower Motor Speed Resistor Check
- Blower Motor Check
- Air Conditioner Freeze Control Switch Check
- Air Conditioner High/Low-Pressure Switch Check
- Air Conditioner Compressor Clutch Solenoid Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Air Conditioning System Does Not Cool Interior of Cab Diagnostic Procedure
- Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Cab Seals Check
- Refrigerant Hose Restriction Check
- Condenser Air Flow Restriction Check
- Evaporator Core Air Flow Restriction Check
- Evaporator Core Fins Check
- Serpentine Belt Check
- System Operating Pressures Check
- Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Cab Seals Check
- Refrigerant Hose Restriction Check
- Condenser Air Flow Restriction Check
- Evaporator Core Air Flow Restriction Check
- Evaporator Core Fins Check
- Serpentine Belt Check
- System Operating Pressures Check
- Air Conditioning System Runs Constantly, Too Cold Diagnostic Procedure
- Air Conditioning System Check
- Evaporator Core Component Check
- Air Conditioner Freeze Control Switch Position Check
- Air Conditioner Freeze Control Switch Check
- Air Conditioner Compressor Clutch Solenoid Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Air Conditioning System Check
- Evaporator Core Component Check
- Air Conditioner Freeze Control Switch Position Check
- Air Conditioner Freeze Control Switch Check
- Air Conditioner Compressor Clutch Solenoid Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Heating System Does Not Operate Diagnostic Procedure
- Diagnostic Trouble Code Check
- Machine Settings Check
-  Fuse Check
- Blower Motor Speed Switch Check
- Blower Motor Speed Resistor Check
- Blower Motor Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Diagnostic Trouble Code Check
- Machine Settings Check
-  Fuse Check
- Blower Motor Speed Switch Check
- Blower Motor Speed Resistor Check
- Blower Motor Check
- Air Conditioner Relay Check
- Wiring Harness Check
- Heating System Does Not Warm Interior of Cab Diagnostic Procedure
- Heater Check
- Coolant Check
- Cab Fresh Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Cab Seals Check
- Heater Hose Restriction Check
- Heater Valve Motor Check
- Heater Core Air Flow Restriction Check
- Heater Check
- Coolant Check
- Cab Fresh Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Cab Seals Check
- Heater Hose Restriction Check
- Heater Valve Motor Check
- Heater Core Air Flow Restriction Check
- Interior Windows Continue to Fog Diagnostic Procedure
- Machine Settings Check
- Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Heater Valve Motor Check
- Air Conditioner Check
- Machine Settings Check
- Air Filter Restriction Check
- Cab Recirculating Air Filter Restriction Check
- Heater Valve Motor Check
- Air Conditioner Check
- Group 25 - Tests
- R134a Refrigerant Cautions and Proper Handling
- R134a Oil Charge Capacity
- R134a Refrigerant Charge Capacity
- Visual Inspection of Components
- Lines and Hoses Check
- Air Conditioner Compressor Check
- Condenser Check
- Engine Fan Check
- Heater/Evaporator Core Check
- Cab Air Filter Check
- Freeze Control Switch Capillary Tube Check
- Cab Door and Windows Check
- Lines and Hoses Check
- Air Conditioner Compressor Check
- Condenser Check
- Engine Fan Check
- Heater/Evaporator Core Check
- Cab Air Filter Check
- Freeze Control Switch Capillary Tube Check
- Cab Door and Windows Check
- Air Conditioner Compressor Clutch Test
- R134a Refrigerant Leak Test
- R134a Refrigerant Hoses and Tubing Inspection
- Air Conditioner High/Low-Pressure Switch Test
- Air Conditioner Freeze Control Switch Test
- Air Conditioning System Test
- Operating Pressure Diagnostic Chart

- Section 9050 - REFERENCE MATERIAL
- Group 10 - Tool Information
- Support Kit Spacer Bar Installation

- Section 9900 - DEALER FABRICATED TOOLS
- Group 99 - Dealer Fabricated Tools
- DFT1369 Pump Control Pilot (PCP) Test Harness

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