The Komatsu PC600LC-7, part of the LC-7 Series, is a robust excavator engineered for demanding heavy-duty applications. Powered by a Komatsu SAA6D125E-2 engine, this 6-cylinder, turbocharged, aftercooled diesel unit delivers a net power of 300 HP, ensuring substantial performance for excavation and material handling tasks. Its hydrostatic transmission with multiple power modes and electronic control system provides efficient and adaptable operation, while the substantial operating weight of 62,200 kg and a track gauge of 2300 mm offer stability and traction on challenging terrain. With a maximum digging depth of 6755 mm and a reach of 10420 mm, the PC600LC-7 is built for productivity and reliability in construction and earthmoving environments. This Workshop Service Repair Manual provides comprehensive guidance for the Komatsu PC600LC-7. It covers essential maintenance procedures, including detailed specifications for engine oil, coolant, hydraulic tank, and fuel tank capacities. The manual also includes technical specifications for the engine, transmission, hydraulics, and undercarriage, along with performance data such as digging depth, reach, and swing speed. This resource is designed to assist owners, mechanics, and technicians in performing routine maintenance, troubleshooting issues, and ensuring the optimal performance and longevity of the PC600LC-7 excavator.