This comprehensive service and repair manual provides detailed information on the Komatsu PC45MR-3 and PC55MR-3 hydraulic excavators. It covers all aspects of maintenance, repair, and troubleshooting for these machines. The manual includes detailed diagrams, exploded views, and step-by-step instructions to guide you through every process. With this manual, you'll have access to the same information that Komatsu technicians use, enabling you to perform a wide range of repairs and maintenance tasks efficiently and accurately.

The Komatsu PC45MR-3 and PC55MR-3 are compact, versatile hydraulic excavators designed for a wide range of applications, including construction, landscaping, demolition, and utility work. Both models boast impressive power and maneuverability, making them ideal for tight workspaces and challenging terrain. The PC45MR-3 is powered by a 42.2 hp (31.5 kW) Komatsu SAA4D95E-1 engine, while the PC55MR-3 utilizes a more powerful 55.4 hp (41.3 kW) Komatsu SAA4D95E-2 engine. Both models feature a robust undercarriage, ensuring stability and durability even on uneven ground. Their hydraulic systems are known for their efficiency and responsiveness, allowing for precise control and smooth operation. The PC45MR-3 and PC55MR-3 are engineered with operator comfort and safety in mind. The spacious and ergonomically designed cabin provides excellent visibility and a comfortable working environment. Standard features include a comfortable operator seat, adjustable controls, and a well-placed instrument panel. Both models are equipped with safety features such as an emergency stop button, a robust roll-over protection structure (ROPS), and a falling object guard (FOPS) to protect the operator in the event of an accident. With their excellent performance, reliable construction, and user-friendly design, the Komatsu PC45MR-3 and PC55MR-3 are highly sought-after machines in the compact excavator market.