This comprehensive Komatsu PC400-7 PC400LC-7 Factory Service Repair Manual, covering serial numbers 50001 and up, provides detailed instructions and illustrations for servicing your excavator. This manual is the same one used by Komatsu dealers and contains all the necessary information to diagnose and repair your machine. The manual covers a wide range of topics, including: * General information about the excavator, its components, and specifications * Detailed explanations about the structure and function of the excavator's systems * Step-by-step instructions for testing and adjusting various components * Thorough guidance on disassembling and reassembling components for repairs * Essential information about maintenance standards and procedures * Additional resources and information to enhance your repair process. This manual will empower you to perform a wide array of repairs and maintenance tasks independently, saving you time and money compared to relying solely on a dealer.

The Komatsu PC400-7 and PC400LC-7 are heavyweight excavators designed for demanding construction and mining operations. These machines belong to Komatsu's renowned PC400 series, known for their robust construction, powerful performance, and advanced technological features. The PC400-7 and PC400LC-7 are equipped with a powerful Komatsu SAA6D170E-7 engine, delivering 340 horsepower and boasting impressive torque for efficient digging and lifting capabilities. They come equipped with a hydraulic system optimized for smooth and controlled operation, offering precise control of the boom, arm, and bucket. Both models feature a spacious and ergonomically designed cab, providing operators with a comfortable and safe working environment. The advanced features include a comprehensive monitoring system, an intuitive control panel, and a high-visibility design, enhancing operator productivity and safety. The PC400-7 and PC400LC-7 are built with durability and reliability in mind, showcasing Komatsu's commitment to quality. They are designed to withstand harsh working conditions and minimize downtime. The robust undercarriage ensures stability and traction on uneven terrain, while the reinforced structure protects vital components against damage. The PC400-7 and PC400LC-7 are equipped with a range of optional attachments, including various buckets, breakers, and grapples, providing users with versatility and adaptability to various project requirements. These excavators are engineered to maximize fuel efficiency, reducing operating costs and environmental impact. Komatsu's commitment to innovation is evident in the development of these machines, ensuring they meet stringent safety and environmental standards while delivering exceptional performance.