This comprehensive Service and Repair Manual is specifically designed for the Komatsu PC290LC-8 and PC290NLC-8 Hydraulic Excavators with serial numbers K50001 and up. It provides detailed instructions and technical specifications for maintaining, troubleshooting, and repairing these machines. The manual covers all aspects of the excavator, including the engine, hydraulic system, undercarriage, electrical system, and cab. You will find detailed diagrams, illustrations, and step-by-step procedures to help you understand and perform all necessary maintenance and repair tasks. This manual is an invaluable resource for mechanics, technicians, and owners who want to ensure the optimal performance and longevity of their Komatsu PC290LC-8 and PC290NLC-8 excavators.