This manual covers the Komatsu PC220LC-5 excavator, a robust machine designed for demanding construction and earthmoving applications. Engineered for reliability and performance, the PC220LC-5 features a powerful Komatsu SAA6D102E-1 diesel engine delivering 114 kW (153 HP) and a hydrostatic transmission with electronic control for efficient operation. Its substantial operating weight of 22,500 kg and a track shoe width of 600 mm ensure stability and low ground pressure, making it suitable for a wide range of terrains. The Komatsu PC220LC-5 Full Service Repair Manual provides comprehensive guidance for maintenance, repair, and technical understanding. This English-language manual details critical information such as engine specifications, fluid capacities, service intervals for engine oil and hydraulic oil, and performance data for the hydraulic system and undercarriage. It serves as an essential resource for owners, technicians, and mechanics to ensure the optimal performance, longevity, and safe operation of the PC220LC-5 excavator.