This workshop service manual covers the Komatsu PC600-7 and PC600LC-7 Hydraulic Excavators from the 7th generation. These robust machines are engineered for demanding work, featuring a powerful Komatsu SAA6D140E-3 turbocharged, water-cooled, 4-cycle diesel engine with a displacement of 15.24 L, delivering a gross power of 309 kW (414 HP) at 1800 rpm. With hydrostatic transmission and substantial operating weights, these excavators are built for reliability and performance in heavy-duty applications. Notable specifications include a standard bucket capacity of 3.4 m³ and a maximum travel speed of 5.0 km/h. This comprehensive manual provides essential information for the maintenance and repair of your Komatsu hydraulic excavator. It details critical procedures, technical specifications, and troubleshooting guidance to ensure optimal performance and longevity. Covered topics include engine lubrication, hydraulic system capacities, undercarriage details, and overall machine dimensions. This resource is invaluable for owners, mechanics, and technicians seeking to maintain the operational integrity and efficiency of the PC600-7 and PC600LC-7 models.