This comprehensive service and repair manual provides detailed instructions for servicing and repairing Komatsu PC35R-8 and PC45R-8 excavators manufactured from 2008 to the present. The manual covers a wide range of topics, including: * **Engine:** Detailed information on engine systems, components, operation, and troubleshooting. This includes the fuel system, cooling system, lubrication system, and exhaust system. * **Hydraulics:** Comprehensive coverage of hydraulic systems, components, operation, and troubleshooting. This includes the hydraulic pumps, motors, valves, and cylinders. * **Electrical System:** In-depth information on the electrical system, including wiring diagrams, components, operation, and troubleshooting of the starter, alternator, and other electrical components. * **Undercarriage:** Detailed instructions for servicing and repairing the undercarriage, including the tracks, rollers, sprockets, and idlers. * **Cab and Controls:** Information on the cab, controls, operator's station, and safety features. * **Troubleshooting:** Detailed troubleshooting procedures for diagnosing and repairing common problems. * **Specifications:** Technical specifications for all major components and systems. * **Parts Diagrams:** Detailed parts diagrams with part numbers for easy identification and ordering. This manual is an essential resource for anyone who owns or operates a Komatsu PC35R-8 or PC45R-8 excavator. It provides the information you need to perform routine maintenance, troubleshoot problems, and make repairs.

The Komatsu PC35R-8 and PC45R-8 are compact excavators designed for a wide range of construction and landscaping applications. These versatile machines are known for their robust build quality, reliable performance, and user-friendly operation. The PC35R-8 boasts an operating weight of approximately 3.5 metric tons and is powered by a compact yet powerful four-cylinder diesel engine. It offers a maximum digging depth of 3.6 meters and a maximum reach of 5.1 meters, making it suitable for various tasks like trenching, grading, and loading. The PC45R-8, being a larger model, has an operating weight of around 4.6 metric tons and a higher digging depth and reach capacity, making it ideal for heavier excavation jobs. Both models feature a spacious and comfortable operator cab with excellent visibility, ensuring operator comfort and safety. Komatsu has equipped these excavators with a number of features designed to enhance efficiency and productivity. The hydraulic system is highly responsive, providing precise control and smooth operation. The swing mechanism is designed for smooth and powerful rotation, allowing for efficient material handling. Both models feature a robust undercarriage with durable tracks and rollers, ensuring long-lasting performance, even in demanding conditions. The PC35R-8 and PC45R-8 are designed for easy maintenance, with readily accessible components and a comprehensive service manual. These features contribute to their overall reliability and minimize downtime, maximizing their operational efficiency in a wide range of construction and landscaping projects.