This comprehensive Komatsu GD670A-1 Motor Grader Factory Service Repair Manual provides detailed instructions and specifications for maintaining and repairing your machine. Covering a wide range of components and systems, the manual equips you with the knowledge and guidance necessary to handle any service or repair task.

You'll find detailed breakdowns of key systems such as the articulation joint assembly, Char-Lynn orbitrol unit, transmission power shift, all-wheel drive pump, circle reverse motor, steering and brake pump, hydraulic motors, control valve manifolds, main system pump, all-wheel drive hydraulic integrated circuit (HIC) valve, hydraulic cylinders, accumulators, and troubleshooting and adjustment procedures.

The manual also dives into the specifics of the rear axle cooling and lock/unlock differential pump, circle reverse slip clutch, circle reverse gear case, tandem case, gearbox assembly, front axle assembly, final drive assembly, circle adjustment, metric conversions, parking brake caliper, brake valve, wiring diagrams, pre-delivery procedures, suspension seat, general torque values, and much more.

This manual is designed to be your go-to resource for all things related to your Komatsu GD670A-1 Motor Grader. With clear and concise instructions, detailed illustrations, diagrams, and specifications, you can effectively diagnose and resolve any issues that may arise, ensuring your machine runs smoothly and efficiently.

The Komatsu GD670A-1 is a powerful and versatile motor grader designed for a wide range of heavy-duty construction and excavation projects. As a member of the GD600 series, the GD670A-1 boasts a robust design and advanced features, making it a reliable and efficient workhorse. The grader is equipped with a powerful Komatsu SAA6D140E-1 engine, which delivers ample torque and horsepower for tackling challenging tasks. This engine is renowned for its fuel efficiency and durability, ensuring optimal performance even under demanding conditions. The GD670A-1 features a rigid frame construction, a well-balanced weight distribution, and a heavy-duty undercarriage, providing exceptional stability and maneuverability on uneven terrain.

The GD670A-1 is equipped with a comprehensive suite of features that enhance operator comfort and productivity. These include a spacious and ergonomically designed cab with excellent visibility, a user-friendly control layout, and advanced blade control systems. The grader's blade system offers precise control for a variety of tasks, including grading, leveling, ditching, and material handling. The hydraulic system provides ample power and responsiveness for smooth and efficient operations. The machine also incorporates several safety features, such as a comprehensive alarm system and various safety guards, to ensure the well-being of the operator and those working nearby. With its impressive power, stability, and user-friendly controls, the Komatsu GD670A-1 motor grader is an ideal choice for contractors and construction companies seeking a reliable and efficient machine for their heavy-duty projects.