John Deere 2025R, 2026R Compact Utility Tractors Repair Technical Manual (S.N HH100001-)

Table of Contents (Repair Technical Manual – TM147619)

Foreword
General Information
Safety
General References
Technical Specific References
Fuel and Lubricants
Serial Number Locations
Engine Repair
Engine
Cooling System
Fuel, Air Intake, and Exhaust Repair
Fuel
Air Intake
Exhaust
Electrical Repair
Connectors
Battery, Starter and Alternator
Electrical System Components
Drive Systems and Transmission Repair
Power Train
MFWD
Differential
PTO
Steering and Brake Repair
Steering
Brake
Hydraulics Repair
Hydraulic Pump and Filter
Rockshaft
Range Control and Three Point Hitch
Selective Control Valve
Hydraulic Lines
Miscellaneous Repair
Hood and Side Panels
Wheels
Mid-Mount Lift
Cab/Open Operator`s Station Repair
Seat and Support
Control Console
Roll-Gard
Open Operator Station Components
Fenders
Diagnostic Trouble Codes
General References
Diagnostic Display Messages
Observable Symptoms and System Diagnostics
General References
Engine System Diagnostics
Fuel, Air Intake, Exhaust, and Cooling System Diagnostics
Electrical System Diagnostics
Drive Systems and Transmission System Diagnostics
Steering and Brakes System Diagnostics
Hydraulic System Diagnostics
Engine Operation, Test, and Adjustments
General References
Calibrations, Preliminary Checks and Operational Checks
Theory of Operation
Component and Connector Information
Tests and Adjustments
Fuel , Air Intake, Exhaust, and Cooling Operation, Test, and Adjustments
General References
Calibrations, Preliminary Checks and Operational Checks
Theory of Operation
Component and Connector Information
Tests and Adjustments
Electrical General and Theory of Operation
General References
Starting and Charging
Lighting-Without License Light
Lighting-With License Light
Instrument Cluster Control (ICC)
Electrical Schematics
General References
Starting and Charging (SE1)
Lighting-Without License Light (SE2A)
Lighting-With License Light (SE2B)
Brake Switch, Horn, And Rear Trailer Connector (SE2C)
Instrument Cluster Control (ICC) (SE3)
Kits (SE4)
Electrical Harness Diagrams
Electrical Components and Connectors
General References
Starting and Charging (SE1)
Lighting-Without License Light (SE2A)
Lighting-With License Light (SE2B)
Brake Switch, Horn, And Rear Trailer Connector (SE2C)
Instrument Cluster Control (ICC) (SE3)
Kits (SE4)
Fuses and Relays
Ground Points
Interconnects
Electrical Harness Component Location
Electrical Tests and Adjustments
General References
Tests and Adjustments
Drive Systems and Transmission Operation, Test, and Adjustments
General References
Calibrations, Preliminary Checks and Operational Checks
Theory of Operation
Schematics
Component and Connector Information
Tests and Adjustments
Steering and Brakes Operation, Test, and Adjustments
General References
Calibrations, Preliminary Checks and Operational Checks-Steering
Calibrations, Preliminary Checks and Operational Checks-Brakes
Theory of Operation-Steering
Theory of Operation-Brakes
Schematics-Steering
Component and Connector Information-Steering
Component and Connector Information-Brakes
Tests and Adjustments-Steering
Tests and Adjustments-Brakes
Hydraulics Operation, Test, and Adjustments
General References
Calibrations, Preliminary Checks and Operational Checks
Theory of Operation
Schematics
Component and Connector Information
Tests and Adjustments
Cab/Open Operators Station Operation, Test, and Adjustments
General References
Seat Theory of Operation
Schematics
Component and Connector Information
Service Tools
General References
Dealer Fabricated and Service Tools

The Technical manual is divided into two parts: maintenance manual as well as operational principle and test manual. Maintenance manual introduces how to repair machine parts. Operational principle and test manual helps you quickly handle common faults.

Chapters are classified according to components that require maintenance or checks. At the beginning of each chapter, all relevant basic tools and repair equipment are listed first, then followed by working materials, repair parts, technical specifications, wear tolerances and torque values.

This is a concise guide for specific machine. It helps you carry out field work and contains only critical information required for diagnosis, analysis, testing and maintenance. Basic maintenance information is provided by other means, such as basic operational principles, troubleshooting basic knowledge, regular maintenance and basic fault types and their causes.