This document pertains to the Komatsu PC600-7 Hydraulic Excavator, a robust machine engineered for demanding work. Featuring a powerful Komatsu SAA6D125E-2 diesel engine with a displacement of 11.04 L, it delivers a net power of 300 HP. Its hydrostatic transmission provides efficient power transfer, with travel speeds ranging up to 5.0 km/h. With an operating weight of 46000 kg and a maximum dig depth of 6730 mm, this excavator is designed for reliability and performance in various construction and earthmoving applications. This Workshop Service Manual provides comprehensive repair information for the Komatsu PC600-7 Hydraulic Excavator. It covers essential maintenance procedures, detailed troubleshooting guides, technical specifications, and critical safety information. This manual is an indispensable resource for owners, mechanics, and technicians, enabling them to perform accurate diagnostics, effective repairs, and routine maintenance, thereby ensuring the optimal performance and longevity of the equipment.