This comprehensive Komatsu GD660 Series Grader Factory Service Repair Manual provides detailed information on servicing and repairing the GD661A-1 (serial number 10001 and up) and GD663A-1 (serial number 30001 and up) models. The manual is an essential resource for technicians and mechanics working on these machines, offering step-by-step instructions, diagrams, and specifications. This official factory manual covers all aspects of maintenance and repair, ensuring you have the correct information to perform any task efficiently and effectively.

The Komatsu GD660 Series is a heavy-duty motor grader designed for demanding construction and infrastructure projects. Known for its robust construction and powerful performance, the GD660 series is a versatile machine capable of a wide range of tasks including grading, ditching, and shaping earth. The series includes several models, each tailored for specific applications and environments. These models often feature powerful Komatsu engines, boasting high horsepower and torque for efficient operation across diverse terrains. The GD660 series incorporates advanced hydraulic systems for precise control of blade movement, ensuring accurate and efficient grading. The operator cabin is designed for ergonomic comfort and optimal visibility, providing the operator with a safe and productive work environment.

Beyond its core functionalities, the Komatsu GD660 Series incorporates several features to enhance productivity and operator comfort. These features often include sophisticated blade control systems for precise grading, automatic blade leveling systems for increased accuracy, and advanced traction control for enhanced stability on challenging terrain. The GD660 Series also prioritizes safety with features such as multiple safety interlocks, emergency stops, and clear warning systems. This comprehensive design approach ensures a safe and efficient work environment for the operator, maximizing productivity on complex projects. The Komatsu GD660 Series is known for its reliability, durability, and fuel efficiency, making it a sought-after choice for construction professionals and contractors worldwide.