John Deere 6425 6425HC 7425 7425HC 7525 7525HC 6155J 6155JH Tractor Diagnostic Repair Manual tm608319 PDF - MJODTM608319.zip
John Deere 6425, 6425HC, 7425, 7425HC, 7525, 7525HC, 6155J and 6155JH Tractors Diagnosis and Tests Service Technical Manual (tm608319)
tm608319 - John Deere 6425, 6425HC, 7425, 7425HC, 7525, 7525HC, 6155J and 6155JH Tractors, Diagnostic Technical Manual (March 2015) Technical Manual.pdf
Complete Diagnosis & Tests Technical Manual with electrical wiring diagrams for John Deere 6425, 6425HC, 7425, 7425HC, 7525, 7525HC, 6155J and 6155JH Tractors, with all the shop information to maintain, diagnose, rebuild like professional mechanics.
John Deere 6425, 6425HC, 7425, 7425HC, 7525, 7525HC, 6155J and 6155JH Tractors 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.
PRODUCT DETAILS:
Total Pages: 1,989 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English
tm608319 - 6425, 6425HC, 7425, 7425HC, 7525, 7525HC, 6155J and 6155JH Tractors, Diagnostic Technical Manual (March 2015)
Table of Contents
Foreword
Section 210: Safety
Group 05: Safety Precautions
Recognize Safety Information
Understand Signal Words
Follow Safety Instructions
Information - "Important"
Information - "Note"
Prevent Machine Runaway
Handle Fluids Safely—Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Handling Batteries Safely
Handle Agricultural Chemicals Safely
Prevent Acid Burns
Avoid High-Pressure Fluids
Wait Before Opening High-Pressure Fuel System
Service Accumulator Systems Safely
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Clean Vehicle of Hazardous Pesticides
Illuminate Work Area Safely
Service Machines Safely
Use Proper Tools
Service Tires Safely
Safe Maintenance of Mechanical Front-Wheel Drive (MFWD) System
Do Not Look Directly Into Radar Tube
Keep ROPS Installed Properly
Avoid Harmful Asbestos Dust
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures for Electronic Control Units
Group 15: General References
General References—Summary
Unified Non-Metric Bolt and Cap Screw Torque Values
Unified Metric Bolt and Cap Screw Torque Values
Hydraulic System Non-Metric Fitting Torque Values
Hydraulic System Metric Fitting Torque Values
Component ID Table
Reading a Functional Schematic
Reading a Diagnostic Schematic
Wiring Schematics and Symbols
Visually Inspect Electrical System
Electrical Circuit Malfunctions
Seven Step Electrical Test Procedure
Hydraulic System — Hydraulic Circuit Symbols
Section 211: Diagnostic Trouble Codes
Group BCU: BCU Diagnostic Trouble Codes
BCU 000070.31 - Park Brake Malfunction
BCU 000084.02 - Wheel Speed Sensor Circuit Malfunction
BCU 000168.16 - Excessive System Voltage (Engine Running)
BCU 000168.17 - Insufficient System Voltage (Engine above 1500 rpm)
BCU 000168.18 - Insufficient System Voltage (Engine speed up to 1500 rpm)
BCU 000186.02 - Rear PTO Speed Sensor Circuit Fault
BCU 000186.17 - No Rear PTO Speed Detected
BCU 000190.02 - Engine Speed Sensor Circuit Malfunction
BCU 000629.12 - Control Unit Internal Problem
BCU 000639.12 - Control Unit Internal Problem
BCU 000746.31 - Differential Lock Solenoid Circuit Fault
BCU 000980.07 - Rear PTO Switch Connector Defective
BCU 001676.31 - LTC Coolant Pump Relay Circuit Fault
BCU 299780.07 - Turn Signal Switch Fault
BCU 302073.31 - Rear PTO Solenoid Circuit Malfunction
BCU 302080.31 - Differential Lock Switch Malfunction
BCU 302085.31 - MFWD Switch Malfunction
BCU 302086.31 - MFWD Clutch Solenoid Circuit Fault
BCU 302106.31 - Control Unit Internal Fault
BCU 302123.31 - Signal From Forward/ Reverse Switch Does Not Match Not-Neutral Switch Signal
BCU 302124.31 - Alternator Relay Electric Circuit Malfunction
BCU 302131.31 - Turn Signal Switch Circuit Fault
BCU 302132.31 - Turn Signal Fuses F03/04 and/or F03/07 Failed
BCU 302133.31 - Rear PTO Selector Fault
BCU 302240.31 - Control Unit Plugged Into Wrong Wiring Harness
BCU 303027.31 - Hitch Control Unit Incorrectly Calibrated
BCU 303028.31 - Hitch Control Unit Not Calibrated
BCU 303037.03 - 5 V power supply too high
BCU 303037.04 - 5 V Power Supply Too Low
BCU 303041.02 - Open Circuit at Coil 1 of the Stepper Motor
BCU 303042.02 - Open Circuit at Coil 2 of the Stepper Motor
BCU 303043.02 - Electric Circuit Malfunction, Stepper Motor Coil 1
BCU 303044.02 - Electric Circuit Malfunction, Stepper Motor Coil 2
BCU 303045.04 - System Voltage Too Low
BCU 303047.03 - System Voltage Too High
BCU 303049.03 - Quick Raise/Lower Switch Signal Voltage Too High
BCU 303049.04 - Quick Raise/Lower Switch Signal Voltage Too Low
BCU 303052.03 - Right Draft Sender Signal Voltage Too High
BCU 303052.04 - Right Draft Sender Signal Voltage Too Low
BCU 303053.03 - Sensitivity Potentiometer Signal Voltage Too High
BCU 303053.04 - Sensitivity Potentiometer Signal Voltage Too Low
BCU 303054.03 - Depth-Setting Potentiometer Signal Voltage Too High
BCU 303054.04 - Depth Potentiometer Voltage Too Low
BCU 303055.03 - Position Sensor Signal Voltage Too High
BCU 303055.04 - Position Sensor Signal Voltage Too Low
BCU 303056.03 - Raise Limit Potentiometer Signal Voltage Too High
BCU 303056.04 - Raise Limit Potentiometer Signal Voltage Too Low
BCU 303057.03 - Rate of Drop Potentiometer Signal Voltage Too High
BCU 303057.04 - Rate of Drop Potentiometer Signal Voltage Too Low
BCU 303060.02 - Stepper Motor Deadband Step Outside Specification
BCU 303177.18 - Low Hydraulic Oil Temperature During Calibration
BCU 303252.02 - Distorted Signal from the Right Draft Sensor During Calibration
BCU 303252.03 - Right Draft Sensor Voltage Too High During Calibration
BCU 303252.04 - Right Draft Sensor Signal Voltage Too Low During Calibration
BCU 303255.03 - Position Sensor Signal Voltage Too High During Calibration
BCU 303255.04 - Position Sensor Signal Voltage Too Low During Calibration
BCU 303260.16 - Stepper Motor (Raise) Free Step Above Upper Threshold During Calibration
BCU 303260.18 - Stepper Motor (Raise) Free Step Above Lower Threshold During Calibration
BCU 303261.16 - Stepper Motor (Lower) Free Step Above Upper Threshold During Calibration
BCU 303261.18 - Stepper Motor (Lower) Free Step Above Lower Threshold During Calibration
Section 212: Observable Symptoms
Group 40: Electrical System
Control Unit(s) Not Displayed
Diagnostic Mode Cannot Be Entered or Connection Problems with Service ADVISOR (Cab Tractors)
Diagnostic Mode Cannot Be Accessed or Connection Problems with Service ADVISOR (Open operator's station)
Problems with the Battery
Problem with starter motor
Horn problem
Group 55: Transmission
PowrQuad Transmission Problem
SyncroPlus Transmission Problem
Group 56: Drive Systems
Rear PTO problem
Group 60: Steering And Brakes
Brake Problem
Steering problem
Park brake problem
Group 70: Hydraulic System
Hydraulic hitch problem
Section 220: Engine
Group 10: Function Test
Safety
Engine Preliminary Checks
Group 15: Tests and Adjustments
Dynamometer Test
Section 230: Fuel, Air Intake and Cooling Systems
Group 15: Tests and Adjustments
Tests and Adjustments—Summary of References
General Information
Explanation of Tests
Safety
Special Tools
Specifications
Intake System Test
Cooling System Leak Test
Thermostat Opening Pressure Test
Variable Speed Fan Drive Test
Fuel System - Check the Fuel Transfer Pump
Hand Throttle Lever and Accelerator Pedal Adjustment
Adjust Accelerator Pedal
Group 20: Descriptions
Description of Components - Summary of References
Fuel Supply System Description
Air Intake System Operation
Coolant System Description
Cooling System Radiator Description
Annular Oil Cooler Description (Transmission Oil)
Variable Speed Fan Drive Operation ( -XXXXXX)
Fan Belt Tensioner Operation
Section 240: Electrical System
Group 10: Sub-System Diagnostics (Cab Tractor)
Sub-System Diagnostics (Cab) — Summary of References
Special Tools
Starter Motor and Charging Circuit (Cab Tractors)
Panel Warning Lights (Cab Tractors)
Horn (Cab Tractors)
Lights (Cab Tractors)
Work lights (Cab Tractors)
Radio, Digital Clock, Dome and Console Lights (Cab Tractors)
Fan and Air Conditioning System (Cab Tractors)
Windshield Wiper and Washer (Cab Tractors)
Beacon light (Cab Tractors)
Electronic Hitch Control (Cab Tractors)
Front-Wheel Drive (Cab Tractors)
Differential Lock (Cab Tractors)
Hazard Warning Lights Unit (Cab Tractors)
Speed Sensor and Radar
Service socket
BUS Terminator and Terminating Resistor
BCU Power Supply (Cab Tractors)
PTO (Cab Tractors)
Brakes (Cab Tractors)
Group 10A: Sub-System Diagnostics (Open Operator Station Tractor)
Sub-System Diagnostics (Open Operator Station Tractor)—Summary of References
Special Tools
Starter Motor and Charging Circuit (Open Operator Station Tractor)
Panel Warning Lights (Open Operator Station Tractor)
Horn - Optional (Open Operator Station Tractor)
Operator's Seat (Open Operator Station Tractor)
Lights (Open Operator Station Tractor)
Work Lights (Open Operator Station Tractor)
3-Terminal and 7-Terminal Sockets (Open Operator Station Tractor)
Electronic Hitch Control (Open Operator Station Tractor)
PTO (Open Operator Station Tractor)
Front-Wheel Drive (Open Operator Station Tractor)
Differential lock (Open Operator Station Tractor)
Hazard Warning Lights Unit (Open Operator Station Tractor)
Speed Sending Units (Open Operator Station Tractor)
Power Feed and Audible Alarm (Open Operator Station Tractor)
Brake System (Open Operator Station Tractor)
Service Socket (Open Operator Station Tractor)
BUS Terminating Resistor (Open Operator Station Tractor)
Group 15: Component Tests
Starter Motor and Charging Circuit
Instrument Panel
Horn - Optional
Lighting Circuits
Work lights
3-pin and 7-pin Sockets (If Equipped)
Dome Light (If Equipped)
Fan, Air Conditioning and Automatic A/C control (If Equipped)
Windshield Wiper and Washer System (If Equipped)
Beacon light (If Equipped)
Electronic Hitch Control
PTO
MFWD
Differential lock
Hazard Warning Lights Unit
Brake System
Alternator
Acoustic Alarm (If Equipped)
Group 25C: Functional schematics
Functional Schematic and Wiring Harnesses (Cab Tractor) — Summary of References
Fuses and Relays
Fuse and Relay Box - Tractors with Open Operator Station
Functional Schematics (Complete Tractor)
Group 26: Wiring Harnesses and Connectors (Cab Tractor)
Wiring Harnesses and Connectors (Cab Tractor)— Summary of References
Wiring Harness - Power Supply (Cab Tractor)
Engine Wiring Harness (Cab Tractor)
Headlights Wiring Harness (Cab Tractor)
Cab Wiring Harness (Cab Tractor)
Cowl Harness (Cab Tractor)
Cab Roof Harness (Cab Tractor)
Windshield Wiper Harness - Rear (Cab Tractor)
Air Conditioning and Fan Harness (Cab Tractor)
Transmission Front End Harness (Cab Tractor)
Transmission Rear End Harness (Cab Tractor)
F101 - F120
F021/1 - F021/3
F023/1 - F023/3
K101 - K113
M5
S17
X14/1
X14/2
X28
X35
X37
X58
X106
X107
X112/1A
X112/1B
X112/2A
X112/2B
X113/1
X113/2
X122
X125
X158
X182
X188
X239
X245
X269F
X269M
X321
X324
X400
X406/1F
X406/1M
X430
X431