John Deere 670A, 672A Motor Grader Technical Manual

This was planned and written in such a way it is made easy to repair your equipment. Refer to it when you need to know correct service procedures or specifications. Using this as a guide will reduce error and costly delay. It will also assure you the best in finished service work.

Manual Included:
Repair Technical Manual: 774 Pages
Operation and Test Manual: 363 Pages
Specifications:
Brand: John Deere
Model: 670A, 672A
Type: Motor Grader
Manuals: Technical Manual, Operation and Test Manual
Publication Numbers: TM1188RE and TM1188OP
Language: English
Format: PDF

Table of Contents
Technical Service Manual – [Model Name]

0.0 INTRODUCTION
Manual Purpose, Scope, and How to Use This Guide

0.1 SAFETY AND YOU
Critical Safety Protocols, Hazard Recognition, and Machine Warnings

1.0 GENERAL INFORMATION
1.1 Specifications and Special Tools
1.2 Predelivery, Delivery, and After-Sale Services
1.3 Tune-Up
1.4 Lubrication
1.5 Separation

2.0 WHEELS
2.1 Wheel Assembly and Disassembly
2.2 Tire Mounting and Demounting
2.3 Tire Pressure Specifications
2.4 Wheel Balancing Procedures
2.5 Wheel Bearing Service and Adjustment

3.0 AXLES AND SUSPENSION SYSTEMS
3.1 Front Axle Service
3.2 Rear Axle Service
3.3 Suspension Geometry and Alignment
3.4 Ride Height Adjustment
3.5 Bushing and King Pin Replacement

4.0 TRANSMISSION
4.1 Transmission Removal and Installation
4.2 Clutch Pack Overhaul
4.3 Shift Calibration and Adjustment
4.4 Valve Body Service
4.5 Gear Set Inspection and Replacement

5.0 ENGINE
5.1 Cylinder Head, Valves, and Camshaft
5.2 Cylinder Block, Liners, Pistons, and Rods
5.3 Crankshaft, Main Bearings, and Flywheel
5.4 Lubricating System
5.5 Cooling System

6.0 ENGINE AUXILIARY SYSTEMS
6.1 Air Intake System
6.2 Exhaust System
6.3 Turbocharger Service
6.4 Fuel Delivery System
6.5 Cooling System Components

7.0 TRANSFER DRIVE
7.1 Transfer Case Service
7.2 Drive Shaft Alignment and Balancing
7.3 Bearing and Seal Replacement
7.4 Gear Train Inspection

8.0 STEERING SYSTEM
8.1 Hydraulic Steering Pump Service
8.2 Steering Cylinder Overhaul
8.3 Orbital Valve Service
8.4 Steering Linkage Adjustment
8.5 Steering Column Service

9.0 SERVICE BRAKES
9.1 Brake Caliper Service
9.2 Rotor and Pad Replacement
9.3 Hydraulic System Bleeding
9.4 Brake Valve Service
9.5 Anti-Lock Brake System Diagnostics

10.0 PARKING AND EMERGENCY BRAKES
10.1 Spring-Applied Hydraulic-Release Brake Service
10.2 Cable Tension Adjustment
10.3 Pressure Testing Procedures
10.4 Brake Actuator Service

11.0 EQUIPMENT ATTACHING
11.1 Attachment Mounting Procedures
11.2 Quick-Coupler Service
11.3 Hydraulic Line Connections
11.4 Alignment and Leveling

12.0 ELECTRICAL SYSTEMS
12.1 Wiring Diagrams and Schematics
12.2 Battery Service and Testing
12.3 Alternator and Charging Circuit
12.4 Starter Motor and Starting Circuit
12.5 Lighting Circuits
12.6 Instrument Cluster and Sensors
12.7 CAN Bus Diagnostics
12.8 Fuse and Relay Panel Service

13.0 FRAME, CHASSIS OR SUPPORTING STRUCTURE
13.1 Frame Straightening Procedures
13.2 Crack Repair and Welding
13.3 Pivot Point Bushing Replacement
13.4 Structural Integrity Inspection

14.0 OPERATOR’S STATION
14.1 Seat Adjustment and Suspension
14.2 Joystick and Control Calibration
14.3 HVAC System Service
14.4 Instrument Cluster Testing
14.5 Cab Mounts and Isolation

15.0 SHEET METAL AND STYLING
15.1 Hood Alignment and Replacement
15.2 Fender Service
15.3 Grille and Panel Replacement
15.4 Paint and Corrosion Protection

16.0 SAFETY, CONVENIENCE AND MISCELLANEOUS
16.1 Backup Alarms and Warning Systems
16.2 Mirror and Lighting Systems
16.3 Fire Suppression Systems
16.4 ROPS and FOPS Structures
16.5 Wiper and Washer Systems

17.0 MAIN HYDRAULIC SYSTEM
17.1 Hydraulic Pump Overhaul
17.2 Control Valve Service
17.3 Cylinder Seal Replacement
17.4 Hose Routing and Inspection
17.5 System Pressure Testing
17.6 Flow and Pressure Diagnostics

18.0 GRADING DEVICE
18.1 Blade and Moldboard Service
18.2 Grading Mechanism Adjustment
18.3 Wear Parts Replacement
18.4 Hydraulic Cylinder Service

19.0 GROUND CONDITIONING TOOL
19.1 Tool Assembly and Installation
19.2 Conditioner Roller Service
19.3 Bearing and Seal Replacement
19.4 Depth and Angle Adjustment

This give you both the general background and technical details of shop service. Fundamentals of this manuals cover basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types of failures and their causes.