This comprehensive repair service manual for the Komatsu PC400-6 and PC400LC-6 excavators is designed to be a valuable resource for professional technicians and even DIY mechanics. It provides detailed information covering a wide range of repair and maintenance procedures, making it an essential tool for those working on these powerful machines.

The manual is structured to guide you through the complexities of excavator repair, offering step-by-step instructions and clear illustrations. It delves into various aspects of the excavators, including engine systems, hydraulics, electrical systems, and more. You'll find detailed information on disassembly, assembly, cleaning, and reinstalling procedures, as well as critical specifications for each component.

The manual's thoroughness ensures that all levels of mechanics can understand the intricacies of the Komatsu PC400-6 and PC400LC-6 excavators. It covers everything from basic maintenance tasks to complex repairs, making it a one-stop resource for all your service needs.

The Komatsu PC400-6 and PC400LC-6 are powerful hydraulic excavators renowned for their reliability, efficiency, and robust performance. These machines are widely used in various demanding construction, mining, and earthmoving applications, thanks to their impressive digging force, lifting capacity, and versatility. Both models share a similar core design but differ in their specific configurations and features. The PC400-6 is a standard model equipped with a powerful Cummins engine, while the PC400LC-6 features a larger boom and arm configuration, making it ideal for heavier lifting and longer reach operations. Both excavators boast advanced hydraulic systems, robust undercarriages with long track shoes, and a comfortable operator cab equipped with ergonomic controls and intuitive displays, providing operators with maximum comfort and control during extended work shifts.

Beyond their impressive performance, the PC400-6 and PC400LC-6 excavators are known for their low operating costs and ease of maintenance. Komatsu has designed these machines with long service intervals and easily accessible components, minimizing downtime and maximizing productivity. The repair service manual for these excavators provides comprehensive technical information, detailed diagrams, and step-by-step instructions for servicing, troubleshooting, and repairing all major components, including the engine, hydraulic system, undercarriage, and electrical systems. This manual serves as an invaluable resource for professional technicians and mechanics, enabling them to efficiently diagnose and resolve any issues encountered with these powerful machines, ensuring their optimal performance and longevity.