This comprehensive Komatsu GD670 Series Grader Factory Service Repair Manual provides detailed technical information for the GD672A-1 model with serial numbers 20001 and up. It is an essential resource for technicians and mechanics who need to diagnose, maintain, and repair these powerful graders. The manual covers a wide range of topics, including engine, transmission, hydraulics, electrical systems, and more. It includes detailed illustrations, diagrams, and step-by-step instructions to guide users through every repair procedure. This manual is an indispensable tool for anyone who works on Komatsu GD670 Series Graders and is committed to achieving optimal performance and longevity of these machines.

The Komatsu GD670 Series is a powerful and versatile motor grader designed for a wide range of heavy-duty construction and infrastructure projects. This series encompasses several models, each catering to specific needs and applications. The GD670-5, GD670-6, and GD670-8 models are known for their robust build, advanced technology, and exceptional productivity. They are equipped with powerful Komatsu engines, delivering ample horsepower and torque for efficient grading, leveling, and other site preparation tasks. The GD670 Series graders boast an impressive operating weight, ranging from approximately 32,000 to 35,000 kg, depending on the specific model and configuration. Their robust design incorporates heavy-duty components, ensuring durability and longevity in demanding conditions. The spacious operator's cab offers excellent visibility and ergonomic controls, enhancing operator comfort and productivity.

The Komatsu GD670 Series graders are equipped with advanced features that enhance performance and efficiency. The hydraulic system provides precise and responsive control of the blade, moldboard, and other attachments. The hydrostatic transmission allows for smooth and efficient operation, while the automatic blade control system ensures accurate grading and leveling. These graders also feature various safety features, including a ROPS/FOPS certified cab, an emergency stop system, and a comprehensive warning system. The GD670 Series is known for its fuel efficiency, thanks to the optimized engine design and efficient hydraulic system. These graders are also equipped with advanced diagnostics and monitoring systems that provide real-time information on the machine's performance and health, facilitating proactive maintenance and reducing downtime. The Komatsu GD670 Series is a reliable and high-performing motor grader that is ideal for a wide range of construction projects.