The Komatsu 5 Series excavators, including the PC200-5, PC200LC-5, PC220-5, and PC220LC-5 models, represent a robust line of diesel-powered machinery engineered for demanding excavation and construction tasks. These excavators feature a hydrostatic track drive system and are powered by reliable Komatsu S6D95L (naturally aspirated) or SA6D95L (turbocharged) diesel engines, offering displacements of 5.88 L and approximately 140 to 155 HP respectively. With operating weights around 20,000 to 22,000 kg and substantial bucket capacities, these machines are built for durability and performance in various work environments. This manual serves as a comprehensive guide for the operation, maintenance, and repair of the Komatsu PC200-5, PC200LC-5, PC220-5, and PC220LC-5 excavators. It covers essential information such as engine specifications, hydrostatic transmission details, lubrication capacities, and recommended maintenance intervals for engine oil and hydraulic filters. Additionally, the manual provides technical data, operational performance figures, and safety guidelines, empowering owners, mechanics, and technicians to ensure the optimal performance, longevity, and safe operation of their equipment.