John Deere 670G, 670GP, 672G, 672GP Grader Manual (S.N 634754 – 656507 & Engines W75 & W01)

Table of Contents
Repair Technical Manual – (TM12138)
Section 9000—General Information
Group 01—Safety
Section 9001—Diagnostics
Group 10—PCU Diagnostic Trouble Codes
Group 20—ECU Diagnostic Trouble Codes
Group 30—ADU Diagnostic Trouble Codes
Group 40—FLC Diagnostic Trouble Codes
Group 50—HVC Diagnostic Trouble Codes
Group 60—AVC Diagnostic Trouble Codes
Group 70—OC3 Diagnostic Trouble Codes
Group 80—HWD Diagnostic Trouble Codes
Group 90—LJ1 Diagnostic Trouble Codes
Group 100—LJ2 Diagnostic Trouble Codes
Group 110—LJ3 Diagnostic Trouble Codes
Group 120—LJ4 Diagnostic Trouble Codes
Group 130—RJ1 Diagnostic Trouble Codes
Group 140—RJ2 Diagnostic Trouble Codes
Group 150—RJ3 Diagnostic Trouble Codes
Group 160—RJ4 Diagnostic Trouble Codes
Section 9005—Operational Checkout Procedure
Group 10—Operational Checkout Procedure
Section 9010—Engine
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 25—Tests
Section 9015—Electrical System
Group 05—System Information
Group 10—System Diagrams
Group 15—Sub-System Diagnostics
Group 16—Monitor Operation
Group 20—References
Section 9016—Six Wheel Drive (6WD)
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
Group 25—Tests
Section 9020—Power Train
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 25—Tests
Section 9025—Hydraulic System
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 25—Tests
Section 9031—Heating and Air Conditioning
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 25—Tests
Operation and Test Manual – (TM12136)
Section 00—General Information
Group 001—Safety
Group 0003—Torque Values
Section 01—Wheels
Group 0110—Powered Wheels and Fasteners
Section 02—Axles and Suspension Systems
Group 0225—Input Drive Shafts and U-Joints
Group 0230—Non-Powered Wheel Axles
Group 0240—Powered Wheel Axles
Group 0250—Axle Shafts, Bearings, and Reduction Gears
Group 0260—Hydraulic System
Section 03—Transmission
Group 0300—Removal and Installation
Group 0360—Hydraulic System
Section 04—Engine
Group 0400—Removal and Installation
Section 05—Engine Auxiliary System
Group 0510—Cooling System
Group 0560—External Fuel Supply Systems
Section 07—Torsional Isolator
Group 0752—Elements
Section 09—Steering System
Group 0920—Power Steering
Group 0960—Hydraulic System
Section 10—Service Brakes
Group 1011—Active Elements
Group 1060—Hydraulic System
Section 11—Park Brake
Group 1111—Active Elements
Section 17—Frame, Chassis or Supporting Structure
Group 1740—Frame Installation
Section 18—Operator’s Station
Group 1800—Removal and Installation
Group 1810—Operator Enclosure
Group 1815—Pedal Assembly
Group 1816—Steering Tilt Console
Group 1821—Seat and Seat Belt
Group 1830—Heating and Air Conditioning
Section 19—Sheet Metal and Styling
Group 1910—Engine Enclosure
Group 1921—Grille and Grille Housing
Section 21—Main Hydraulic System
Group 2160—Hydraulic System
Section 34—Grading Device
Group 3415—Controls Linkage
Group 3440—Frames
Group 3450—Circle Gearbox
Group 3460—Hydraulic System
Section 42—Ground Conditioning Tool
Group 4240—Frames
Section 99—Dealer Fabricated Tools
Group 9900—Dealer Fabricated Tools
Technical manuals are divided in two parts: Repair and Operation and Tests.
-Repair sections tell how to repair the components.
-Operation and tests sections help you identify the majority of routine failures quickly.
These are concise guides for specific machines. They are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing and repair.