This comprehensive Komatsu Motor Grader GD 555 655 675 Workshop Service Repair Manual provides in-depth information for professional mechanics and enthusiasts looking to perform repairs and maintenance on their Komatsu Motor Graders. It covers models GD555-3A, GD655-3A, and GD675-3A, featuring detailed instructions on a wide range of topics: **General Information:** This section provides an overview of the grader's design, operation, and safety procedures. **General Assembly Drawing:** Find comprehensive diagrams outlining the overall assembly and component placement of the grader. **Specifications:** Access detailed specifications for each covered model, including engine details, dimensions, and performance characteristics. **Weight Table:** A convenient reference for the weights of different components and configurations. **Fuel-Coolant-Lubricant:** Learn about recommended fluids and lubrication requirements for optimal performance and maintenance. **Function and Maintenance:** This section provides a thorough guide to the proper function and maintenance of various grader components, ensuring their longevity and efficiency. **Engine:** The manual delves into the VHP engine for all models, covering details like the accelerator control, fan drive, engine removal and installation, pre-heat circuit, and more. **Power Train Diagram:** Clearly understand the intricate workings of the grader's powertrain system with detailed diagrams. **Transmission System:** Detailed information about the transmission, including adjustment, maintenance, and troubleshooting. **Torque Specifications:** Find accurate torque values for all critical bolts and fasteners to ensure proper assembly and prevent damage. **Electronic Control Module:** Guidance on the electronic control module, including diagnostics and troubleshooting. **Hydraulic System:** A comprehensive breakdown of the grader's hydraulic system, covering components like the hydraulic pump, main control valve, accumulator system, swivel joint, and more. **Steering, Axle, and Brake Systems:** Detailed information on the steering, axle, and brake system, including adjustments, maintenance, and troubleshooting. **Air Conditioner:** Complete information on the air conditioning system, including operation, maintenance, and troubleshooting. **Shift Control System:** Learn how to operate and maintain the grader's shift control system. **Monitor and Sensors:** Guidance on the grader's monitoring systems and sensors, including diagnostics and troubleshooting. **Testing and Adjustments:** Comprehensive instructions for testing and adjusting various components to ensure proper performance. **Circuit Wiring Diagram:** Detailed wiring diagrams for easy identification and troubleshooting of electrical circuits. This manual is a valuable resource for anyone working on a Komatsu Motor Grader. It provides clear and concise instructions, detailed diagrams, and troubleshooting tips, making it an essential tool for successful repairs and maintenance.

The Komatsu Motor Grader GD 555, GD 655, and GD 675 are powerful and versatile machines designed for a wide range of construction and earthmoving applications. These graders are known for their exceptional performance, durability, and operator comfort. The GD 555, GD 655, and GD 675 feature a robust construction, with a heavy-duty frame and components designed to withstand demanding work environments. They are powered by Komatsu's reliable diesel engines, delivering ample horsepower and torque for efficient grading and material handling. The graders are equipped with advanced hydraulic systems that provide smooth and precise blade control, enabling operators to achieve accurate and efficient grading results. These Komatsu Motor Graders are designed to maximize operator productivity and comfort. They feature spacious and ergonomic operator cabs with intuitive controls and excellent visibility. The cabs are equipped with comfortable seats, climate control systems, and vibration dampening features to minimize operator fatigue and enhance comfort during long shifts. The GD 555, GD 655, and GD 675 are also equipped with advanced safety features, such as rollover protection structures (ROPS), falling object protection structures (FOPS), and emergency shut-off systems. These features ensure the safety of operators and those working around the grader. The Komatsu Motor Graders GD 555, GD 655, and GD 675 are highly sought-after machines in the construction industry, renowned for their reliability, performance, and operator comfort. Their versatility makes them suitable for a wide range of applications, from road construction and maintenance to site preparation and landscaping.