This comprehensive Service Repair Manual Supplement is designed for the Komatsu PC400-6, P400LC-6, PC450-6, and PC450LC-6 Hydraulic Excavators. Covering models with serial numbers PC400-6 and PC400LC-6 starting from 32488 and up, and PC450-6 and PC450LC-6 starting from 12629 and up, this manual provides in-depth information on the maintenance, assembly, disassembly, and servicing of your Komatsu excavator.

The manual specifically addresses the SAA6D125E-2 engine used in the PC400 and 450-6 models. While the manual offers detailed insights into the excavator itself, for specific engine information, the 125-2 Series Engine Shop Manual is recommended.

With its comprehensive content, this manual offers detailed specifications, diagrams, and real-life photo illustrations, providing clear step-by-step instructions for repair, diagnosis, servicing, technical maintenance, and troubleshooting procedures. It empowers you to identify issues and understand how to effectively repair and maintain your excavator without the need for external service. You will have the knowledge and confidence to perform repairs yourself, saving time and money in the process.

The manual is organized into sections covering general information, structure and function of the excavator, testing and adjusting procedures, and detailed disassembly and assembly instructions. The content is easy to navigate and understand, with clear and concise language and diagrams that make complex procedures readily accessible. This manual will be an invaluable resource for owners, operators, and mechanics seeking to maintain and repair their Komatsu excavators efficiently and effectively.

The Komatsu PC400-6, P400LC-6, PC450-6, and PC450LC-6 are powerful and versatile hydraulic excavators designed for heavy-duty construction, mining, and demolition applications. Known for their robust build, efficient performance, and advanced technology, these models are widely used across various industries. The PC400-6 and PC450-6 are standard models, while the P400LC-6 and PC450LC-6 are long-reach configurations. These excavators feature a powerful Komatsu SAA6D140E-6 engine, delivering a high level of power and torque for demanding tasks. The hydraulic system provides precise control and smooth operation, allowing for efficient digging, lifting, and loading. The spacious and ergonomic operator cab offers excellent visibility and comfort, reducing fatigue for the operator during long working hours.

Furthermore, the Komatsu PC400-6, P400LC-6, PC450-6, and PC450LC-6 are equipped with advanced features to enhance safety and performance. These features include an optional Komatsu integrated monitoring system (KIMS), which provides real-time information on engine performance, hydraulic system, and other critical parameters. The excavators also feature a robust undercarriage, designed for maximum durability and stability, ensuring reliable operation even in challenging terrain. The service repair manual supplement for these models provides detailed information on troubleshooting, maintenance, and repair procedures, ensuring efficient and effective operation throughout the excavator's lifecycle. Owners and operators can rely on the manual to maintain their Komatsu excavators at peak performance, maximizing productivity and minimizing downtime.