The Komatsu PC220LC-7 Hydraulic Excavator represents a robust and reliable piece of heavy machinery engineered for demanding construction and earthmoving applications. Featuring a powerful Komatsu SAA6D102E-2 turbocharged, aftercooled, direct injection diesel engine, this excavator delivers exceptional performance with a net power of 123 kW (165 HP). Its hydrostatic transmission with two-speed automatic shifting ensures efficient power delivery, while the substantial operating weight of 22,100 kg and a standard bucket capacity of 0.92 m³ highlight its capability for significant work. The LC-7 generation is designed for durability and operational excellence in various environments. This Workshop Service Repair Manual provides comprehensive guidance for the Komatsu PC220LC-7 Hydraulic Excavator. It covers essential maintenance procedures, detailed troubleshooting steps, and critical technical specifications necessary for optimal operation and longevity. Within its pages, you will find information on lubrication capacities, service intervals, engine details, hydraulic system performance, and work equipment dimensions. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, repair, and understand the intricate workings of this powerful hydraulic excavator.