The Komatsu PC220-5 Hydraulic Excavator, part of the Dash 5 generation, represents a robust and reliable piece of heavy machinery engineered for demanding construction and excavation tasks. Its design prioritizes operational efficiency and durability, featuring a powerful Komatsu S6D102E diesel engine that delivers substantial net power for challenging work environments. With a hydrostatic transmission, this excavator offers precise control and efficient power transfer, making it suitable for a wide range of applications requiring strength and maneuverability. This Workshop Service Manual provides comprehensive guidance for the repair and maintenance of the Komatsu PC220-5 Hydraulic Excavator. It covers essential information, including detailed technical specifications, engine data, hydraulic system parameters, and fluid capacities. The manual outlines recommended service intervals and procedures, enabling owners, mechanics, and technicians to effectively maintain the equipment, ensure optimal performance, and prolong its operational lifespan.