This comprehensive Komatsu PC400-7E0, PC400LC-7E0 shop manual provides detailed technical information and step-by-step instructions for servicing and repairing these excavators. It covers models with serial numbers 60001 and up for the PC400-7EO and PC400LC-7EO, as well as models with serial numbers 30001 and up for the PC450-7EO and PC450LC-7EO. The manual is meticulously organized, featuring clear and concise text alongside high-quality diagrams, images, and illustrations. These visual aids facilitate understanding and ensure accurate repair procedures. The step-by-step instructions guide you through every stage of fault finding, repair, and overhaul, allowing you to complete tasks efficiently and correctly. Furthermore, the manual includes all necessary specifications and tolerances, ensuring accuracy and adherence to manufacturer standards. It also explains the functions of various components, providing a deeper understanding of the excavator's complex systems. This manual is an invaluable resource for mechanics, technicians, and anyone involved in maintaining and repairing Komatsu PC400-7E0 and PC400LC-7E0 excavators.

## The Komatsu PC400-7E0 and PC450-7E0: Powerful Excavators for Demanding Applications The Komatsu PC400-7E0 and PC450-7E0 are heavy-duty hydraulic excavators designed for demanding applications in various industries, including construction, mining, and quarrying. These models represent the technological pinnacle of Komatsu's engineering prowess, boasting impressive power, efficiency, and durability. Both the PC400-7E0 and PC450-7E0 are equipped with a powerful Komatsu SAA6D170E-6 engine, providing exceptional performance in all operating environments. This engine is specifically designed for high torque and low fuel consumption, contributing to the excavators' overall efficiency. The Komatsu PC400-7E0 and PC450-7E0 are renowned for their robust construction, featuring a reinforced undercarriage and a sturdy boom and arm. These excavators are built to withstand the rigors of heavy-duty operations, providing long-lasting performance and reduced downtime. Komatsu engineers have implemented a range of advanced technologies to enhance operator comfort and safety. The spacious cab features an ergonomically designed operator seat with adjustable controls and a clear all-round view, ensuring optimal operator productivity and safety. The excavators are also equipped with a comprehensive safety system, including a wide range of sensors and alarms to warn the operator of potential hazards. The PC400-7E0 and PC450-7E0 offer a range of optional attachments, allowing them to adapt to a multitude of tasks, from digging and loading to demolition and material handling.