John Deere 7425 7525 6140J 6155J 6155JH Tractor Repair Service Manual PDF (TM605819) - MJODTM605819.zip

A comprehensive repair and service guide for John Deere tractors models 7425, 7525, 6140J, 6155J, and 6155JH (2WD or MFWD), packed with everything you need to service, fix, and rebuild these machines the way a professional technician would.

This workshop manual (repair) for the John Deere 7425, 7525, 6140J, 6155J, and 6155JH tractors contains:

* 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.

* 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.

TM605819 - John Deere Tractors 7425, 7525, 6140J, 6155J, 6155JH Technical Manual (Repair).pdf

TM605819 - John Deere Tractors 7425, 7525, 6140J, 6155J, 6155JH Technical Manual (Repair).epub

Total Pages: 1,321 pages

File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)

Language: English

MAIN SECTIONS

Foreword

Safety

Safety Precautions

General Information

Specifications

Tune-Up

Pre-Delivery Inspections

Engine

Remove And Install Engine

Fuel, Intake, Cooling and Exhaust Systems

Speed Control Linkage

Fuel System

Air Intake System

Cooling System

Exhaust System

Electrical System

Connectors

Wiring Harnesses

Charging circuit

Starter Motor Electrical Circuit

Fuses, Relays and Switches

Control Systems

Electrical Components

PowrQuad Transmission

Component Removal and Installation

Transmission Controls

PowrQuad Module

Range Box

Drive Systems

Component Removal and Installation

Drive Shafts and Torsional Dampener

MFWD Clutch

Differential

Hydraulic Pump Drive

Final Drive

Final Drives on Hi-Crop Tractors

PTO

Steering and Brakes

Hydrostatic Steering

Steering Cylinders

Brake Valve

Rear Brakes

Hydraulic System

Controls

Hydraulic Pump And Charge Pump

Valves

Hydraulic Rockshaft

Selective Control Valves And Couplers

Miscellaneous

Component Removal and Installation

Main Frame

Front Axle

Hi-Crop Front Axle

Front and Rear Wheels

Swinging Drawbar

Operator`s Cab

Removing and Installing Components

Air Conditioning System

Heating System

Operator`s Cab

Deluxe Seat

Seat and Support

Roll-Over Protective Structure (ROPS)

Rockshaft Electronic Control Components

Special Tools (Dealer Fabricated)

Special Tools (Dealer Fabricated)

TABLE OF CONTENTS......1

Section 05: Safety......26

Group 05: Safety Precautions......26

Recognize Safety Information......28

Information - "Important"......29

Information - "Note"......30

Prevent Machine Runaway......31

Handle Fluids Safely—Avoid Fires......32

Prevent Battery Explosions......33

Prepare for Emergencies......34

Prevent Acid Burns......35

Avoid High-Pressure Fluids......37

Service Cooling System Safely......38

Remove Paint Before Welding or Heating......39

Avoid Heating Near Pressurized Fluid Lines......40

Work In Ventilated Area......41

Wear Protective Clothing......42

Practice Safe Maintenance......43

Park Machine Safely......44

Use Proper Lifting Equipment......45

Construct Dealer-Made Tools Safely......46

Support Machine Properly......47

Work in Clean Area......48

Illuminate Work Area Safely......49

Service Machines Safely......50

Use Proper Tools......51

Service Tires Safely......52

Safe Maintenance of Mechanical Front-Wheel Drive (MFWD) System......53

Do Not Look Directly Into Radar Tube......54

Keep ROPS Installed Properly......55

Replace Safety Signs......56

Dispose of Waste Properly......57

Live With Safety......58

Safety Measures for Electronic Control Units......59

Section 10: General Information......1192

Group 05: Specifications......1252

Specifications - Summary of References......64

Engine......65

Transmission......66

Hydraulic System......67

Overall Dimensions......68

Standard Tires......70

Loads and Weights......71

Electrical System......73

Capacities......74

Hydraulic Forward/Reverse......75

Power Take-Off......76

Differential Lock......77

Final Drive......78

Front Wheel Drive......79

Hydraulic Brakes......80

Park Brake......81

Hydraulic System with Axial Piston Pump......82

Hydraulic System with Gear Pump......83

Hydraulic Rockshaft......84

Handling and Storing Diesel Fuel......86

Diesel Fuel......86

Lubricity of Diesel Fuel......87

Diesel Engine Break-In Oil......88

Diesel Engine Oil......89

Transmission and Hydraulic Oil......91

Front-Wheel Drive Axle Oil......93

MFWD Axle Housing Oil — Hi-Crop Rear Axle......95

Diesel Engine Coolant......96

Supplemental Coolant Additives......97

Grease......98

Oil Filters......99

Mixing of Lubricants......100

Lubricant Storage......101

Operating in Warm Temperature Climates......102

Alternative and Synthetic Lubricants......103

Unified Inch Bolt and Screw Torque Values......104

Metric Bolt and Screw Torque Values......106

Hydraulic System Fitting Torque Values (in.)......108

Hydraulic System Metric Fitting Torque Values......109

Product Identification Number......111

Engine Serial Number......112

Transmission Serial Number......113

MFWD Axle Serial Number......114

Cab Serial Number......115

Group 10: Tune-Up......61

Tune-Up - Summary of References......117

Specifications......1252

Using High-Pressure Washers......119

Preliminary Engine Test......120

Tractor Tune-Up......121

Removing and Cleaning the Primary Air Cleaner Element......122

Checking the Air Cleaner Safety Element......123

Installing the Primary Air Cleaner Element......124

Air Intake System Joint Leak Check......125

Checking Air Intake Hoses......126

Checking the Crankcase Vent Hose for Clogging......127

Keep Radiator Screen Clean......128

Cleaning Radiator......129

Expansion Tank Cap Check......130

Radiator Leak Check......131

Checking the Engine's Thermostat......132

Supply Pump Operation Check......133

Checking the Fuel Filter......134

Bleeding the Fuel System......135

Cleaning Water Trap......136

Transmission Oil - Adjusting the Oil Level Mark at the Sight-Glass......137

Run Engine until it is Warm and Check Engine Speeds......139

Cleaning the Battery, Cables and Battery Box with a Clean Cloth......140

Checking Operation of Starting Motor......141

Checking the Lighting Circuit......142

Engine Final Check......143

Tractor Operation Check......144

Fuel Injection Pump Adjustment Check......145

Speed Control Linkage Adjustment Check......146

Group 15: Pre-Delivery Inspections......62

Predelivery Inspection......148

Section 20: Engine......149

Group 00: Remove And Install Engine......65

Engine - Summary of References......151

Special or Essential Tools......1129

Specifications......1252

Engine Removal......154

Installing the Engine......167

Section 30: Fuel, Intake, Cooling and Exhaust Systems......174

Group 05: Speed Control Linkage......174

Speed Control Linkage - Summary Of References......177

Adjust Speed Control Linkage......178

Hand Throttle Lever — Exploded View......828

Foot Throttle, Mechanical Speed Control (OOS)......181

Accelerator Pedal, with Mechanical Speed Control (Cab)......183

Accelerator Pedal Adjustment......185

Group 10: Fuel System......174

Fuel System - Summary Of References......188

General Information......1192

Removing the Fuel Tank......190

Installing the Fuel Tank......192

Replacing the fuel gauge sender......193

Replace Electrical Fuel Transfer Pump......195

Replace Fuel Filter......196

Replace Water Separator......197

Bleed Fuel System......199

Install Check Valve in Fuel System......200

Group 15: Air Intake System......174

Fuel, Intake, Cooling and Exhaust Systems - Air Intake System - Summary of References......202

General Information......1192

Air Cleaner - Exploded View......828

Replace Air Filter Restriction Sensor (B02)......376

Group 20: Cooling System......174

Cooling System - Summary Of References......207

General Information......1192

Specifications......1252

Remove the Radiator......210

Replace Fan......216

Remove and Install Expansion Tank......218

Remove And Install Thermostat......219

Installing the Radiator......220

Filling the Cooling System with Coolant......221

Relieve the Tension on the Drive Belt......223

Replace Drive Belt......224

Replace Drive Belt Tensioner......226

Repair Fan Bracket......227

Group 30: Exhaust System......233

Exhaust System - Summary Of References......230

General Information......1192

Specifications......1252

Exhaust System......233

Section 40: Electrical System......237

Group 05: Connectors......272

Connectors (Summary of References)......241

Special Tools......1180

General......244

Using high-pressure washers......245

Disconnecting electrical circuits......385

Reconditioning Wire Ends......247

Installing a Terminal......248

WEATHER PACK Connectors......272

METRI PACK connector with rear terminal lock......252

METRI PACK connector with Front Terminal Lock......255

METRIC PACK Connectors......272

CAN BUS Terminating Resistor Connector......263

Electronic Control Unit Connectors......272

Connectors......272

CRIMP SNAP IN Connectors......277

KOSTAL Connectors......279

DEUTSCH Connectors......282

Individual terminals......286

Fuse and Relay Box on Tractors with Cab and Open Operator Station......288

Group 10: Wiring Harnesses......237

Wiring Harnesses — Repair — Summary of References......292

Disconnecting Electrical Circuits......375

Location of Ground Points......294

Remove and Install Wiring Harness W01 — Power Supply (OOS)......297

Removing and Installing Wiring Harness W01 — Power Supply (Cab)......298

Removing and Installing Wiring Harness W02 — Engine Wiring Harness (OOS Tractors)......299

Removing and Installing Wiring Harness W02 — Engine Wiring Harness (Cab Tractors)......301

Remove and Install Wiring Harness W04 — Headlights......303

Remove and Install Wiring Harness W10 — Shift Console......304

Remove and Install Wiring Harness W11 — Gear Shift and Accelerator Lever......305

Remove and Install Wiring Harness W13 — Clutch Sensor......306

Removing and Installing Wiring Harness W19 — Cab Roof......307

Removing and Installing Wiring Harness W26 — Fan and Air Conditioning......309

Remove and Install Wiring Harness W28 — Front End of Transmission (OOS)......310

Removing and Installing Wiring Harness W28 — Front End of Transmission (Cab Tractors)......312

Remove and Install Wiring Harness W30 — Rear End of Transmission (OOS)......314

Removing and Installing Harness W30 — Rear End of Transmission (Cab)......316

Remove and Install Wiring Harness W31 — 7-Pin Electrical Accessory Receptacle Connector (if installed)......318

Windshield Wiper Harness - Rear......319

Group 15: Charging circuit......238

Charging Circuit – Summary Of References......321

Special Tools......1180

Specifications......1252

Repairing the Alternator......324

Disconnecting Electrical Circuits......375

Relieve Drive Belt Tension......326

Remove/Install the Alternator......327

Pulley Removal and Installation......329

Group 20: Starter Motor Electrical Circuit......238

Starter Motor Electrical Circuit - Summary of References......332

Special or Essential Tools......1129

Specifications......1252

Repairing the Starter Motor......335

Disconnecting Electrical Circuits......375

Remove and Install Starter Motor......337