This comprehensive Komatsu PC400LC-6 and PC400HD-6 Hydraulic Excavator Service Manual is an invaluable resource for technicians and mechanics. It provides detailed and step-by-step instructions for repair, servicing, and preventative maintenance, ensuring your excavator operates efficiently and reliably. The manual covers a wide range of topics, including engine, hydraulics, electrical systems, undercarriage, and more. With its detailed diagrams, specifications, and troubleshooting guides, this manual empowers you to perform repairs and maintenance with confidence.

The Komatsu PC400LC-6 and PC400HD-6 are powerful and versatile hydraulic excavators designed for demanding construction, mining, and other heavy-duty applications. These models are renowned for their durability, reliability, and advanced features, making them popular choices for professionals across various industries. The PC400LC-6 is the standard configuration, while the PC400HD-6 is a high-density version optimized for demanding applications like quarry work and heavy material handling. Both models boast robust construction, featuring a powerful Komatsu SAA6D140E-6 engine with high torque and efficiency, delivering exceptional digging and lifting capabilities. They are equipped with a hydraulic system designed for precise control and smooth operation, ensuring optimal performance even in demanding conditions. The PC400LC-6 and PC400HD-6 are equipped with numerous features designed to enhance operator comfort, safety, and productivity. These include a spacious and ergonomic cab with excellent visibility, a comfortable operator seat with adjustable settings, and an intuitive control system for easy operation. Both models also feature advanced safety systems, such as automatic deceleration control and a rearview camera, ensuring a secure working environment. The Komatsu PC400LC-6 and PC400HD-6 are designed for long-term reliability and minimal downtime, featuring robust components and a comprehensive maintenance system. Komatsu offers a wide range of support services, including genuine parts, skilled technicians, and specialized training programs, ensuring that owners can maximize uptime and minimize operating costs throughout the lifecycle of these powerful excavators.