The Komatsu PC220LC-7 represents a robust and reliable excavator engineered for demanding construction and earthmoving applications. Featuring a powerful Komatsu SAA6D102E-2 diesel engine with a displacement of 5.88 liters, it delivers 110 kW (148 HP) of power, meeting EPA Tier 3 and EU Stage IIIA emissions standards. Its hydrostatic transmission with electronic control and variable speed ranges ensures efficient operation, while its substantial operating weight of 21,460 kg and impressive digging capabilities, including a maximum digging depth of 6700 mm, highlight its performance in challenging environments. The LC-7 generation signifies a commitment to durable construction and operational excellence. This comprehensive Full Service Repair Manual in English provides detailed guidance for the maintenance and repair of the Komatsu PC220LC-7. It covers essential areas such as engine specifications, including oil and coolant capacities, transmission details, and recommended fuel types. The manual also delves into performance metrics of the hydraulic system and undercarriage components. Its purpose is to equip owners, technicians, and mechanics with the necessary information to ensure the longevity, optimal performance, and safe operation of the excavator through accurate procedures and technical data.