This comprehensive Komatsu GD670AW-1 Motor Grader Workshop Service Repair Manual covers models with serial numbers ranging from 200840 through 202000. It provides detailed instructions and technical information for servicing and repairing your Komatsu GD670AW-1 Motor Grader, equipped with the KDC614T / S6D114-1 / S6D114E-1 engine.

The manual is an indispensable resource for both experienced mechanics and do-it-yourselfers, offering step-by-step guidance for a wide range of repair procedures. It includes detailed information on various components and systems, including the articulation joint assembly, Char-Lynn orbitrol unit, transmission power shift (Funk 2263E130B), all-wheel drive pump (Rexroth), circle reverse motor (Danfoss), circle reverse motor (Char-Lynn, P/N 1435 598 H91), steering & brake pump (Eaton Model 70422 RDU), hydraulic motor (Vickers, for all-wheel drive), hydraulic oil swivel block (four-way), control valve manifolds (Husco 5000C series), main system pump, all-wheel drive hydraulic integrated circuit (HIC) valve, hydraulic cylinders, accumulators (P/N 1285 352 H91, 1279 537 H & 1233 789 H91), rear axle cooling and lock/unlock differential pump, circle reverse slip clutch, circle reverse gear case, tandem case (single and double strand chains), gearbox assembly (all-wheel drive), front axle assembly, final drive assembly (John Deere TeamMate II) with planetary and non-planetary reduction (NoSPIN & LOCK/UNLOCK differential), circle adjustment (four shoe), parking brake caliper (Perrot P/N 40 023 002), parking brake caliper (Mico), brake valve (Rexroth), brake valve (Mico), wiring diagrams, pre-delivery procedures, suspension seat, general torque values, and metric conversions.

The manual utilizes clear and concise language, combined with numerous illustrations, drawings, and photographs, to guide you through each repair procedure. Enlarged inset illustrations help you identify and examine parts in detail, while numbered instructions provide a structured approach to each step. Troubleshooting and electrical service procedures are integrated with detailed wiring diagrams for easy diagnosis and repair of electrical system issues.

This service manual ensures you have the necessary information to maintain and repair your Komatsu GD670AW-1 Motor Grader efficiently and effectively.

The Komatsu GD670AW-1 is a robust and versatile motor grader designed for heavy-duty construction and infrastructure projects. This machine boasts an impressive combination of power, maneuverability, and advanced technology, making it a reliable choice for a wide range of applications. Its powerful engine, coupled with a robust hydraulic system, provides exceptional performance for tasks such as grading, leveling, and shaping earth. The GD670AW-1 is equipped with a spacious and comfortable operator's cab, offering excellent visibility and controls for precise operation. The machine's advanced technology, including an integrated control system and various safety features, ensures efficient and safe performance.

The GD670AW-1's versatility is further enhanced by its unique features. Its blade can be adjusted to accommodate different grading angles, while its moldboard can be equipped with various attachments for specialized tasks. The machine's articulated steering system provides exceptional maneuverability, allowing operators to navigate tight spaces and challenging terrain with ease. The GD670AW-1 is equipped with a range of safety features, including a rollover protection system and a comprehensive warning system, ensuring a safe working environment for operators. This motor grader is designed with durability and longevity in mind, making it a worthwhile investment for construction and infrastructure projects that require exceptional performance and reliability.