John Deere 670G, 670GP, 672G and 672GP Motor Graders (SN: 634754-656508) with S2, S3A Engines Operation and Test Manual (TM12136)

John Deere 670G, 670GP, 672G and 672GP Motor Graders Operation and Test Manual PDF (TM12136)

This factory Operation and Test Manual provides complete operating instructions and in-depth system testing procedures for John Deere 670G, 670GP, 672G, and 672GP Motor Graders equipped with S2 and S3A engines. Manual TM12136 is intended for operators, service technicians, and maintenance professionals who require accurate operational guidance and diagnostic testing information.

The manual is organized by machine systems and functions, offering clear explanations of controls, operating checks, and step-by-step test procedures. It helps ensure safe operation, precise troubleshooting, and correct evaluation of grader systems to maintain optimal performance and reliability.

Models Covered:

John Deere 670G Motor Grader
John Deere 670GP Motor Grader
John Deere 672G Motor Grader
John Deere 672GP Motor Grader

Serial Number Range:

SN: 634754 – 656508

Engine Coverage:

S2 and S3A Engines

Manual Coverage Includes:

• General Safety Practices and Operating Precautions
• Machine Identification and Technical Specifications
• Operator Controls, Displays, and Indicators
• Engine Operation and Performance Testing
• Fuel System Operation and Diagnostic Procedures
• Air Intake and Exhaust System Testing
• Cooling System Operation and Functional Tests
• Transmission Operation and Test Procedures
• Powertrain System Checks and Adjustments
• Hydraulic System Operation and Pressure Testing
• Main Pumps, Control Valves, and Circuit Diagnostics
• Steering, Brake, and Articulation System Testing
• Electrical System Operation and Diagnostic Charts
• Electronic Controllers, Sensors, and Calibration Procedures
• Troubleshooting Guides for Machine Performance Issues

Format and Access Features:

• Instant Digital PDF Download
• Language: English
• Fully Searchable and Indexed Content
• High-Resolution Diagrams and Schematics
• Printable Pages for Workshop and Field Use
• Compatible with Windows, macOS, Tablets, and Smartphones
• Easy Navigation for Faster Diagnostics

Why This Operation and Test Manual Is Important:

• Provides factory-approved operating and testing procedures
• Supports accurate diagnosis before repair work
• Helps maintain engine and system efficiency
• Reduces downtime through correct troubleshooting methods
• Essential reference for operators and service technicians
• Supports reliable operation of S2 and S3A engine platforms

The John Deere 670G, 670GP, 672G and 672GP Motor Graders Operation and Test Manual PDF (TM12136) is an essential resource for correct machine operation, detailed system testing, and dependable performance.

Download the John Deere TM12136 Operation and Test Manual PDF for immediate access to official factory documentation.

Frequently Asked Questions (FAQ)

Q: What is the purpose of the TM12136 manual?

A: TM12136 provides operating instructions and detailed test procedures for diagnosing and evaluating motor grader systems.

Q: Which John Deere models are covered in this manual?

A: It covers John Deere 670G, 670GP, 672G, and 672GP motor graders.

Q: What serial number range does this manual apply to?

A: This manual applies to machines with serial numbers from 634754 to 656508.

Q: Which engines are included in TM12136?

A: The manual covers graders equipped with S2 and S3A engines.

Q: Does this manual include hydraulic and transmission testing?

A: Yes, it includes complete hydraulic system and powertrain operation and test procedures.

Q: Are electrical and electronic diagnostics included?

A: Yes, the manual covers electrical systems, electronic controllers, sensors, and calibration procedures.

Q: Is this manual suitable for professional workshops?

A: Yes, it is designed for dealer technicians, independent service professionals, and experienced operators.

Q: Can the PDF manual be printed?

A: Yes, the manual is fully printable for workshop or on-site reference.