The Hitachi Zaxis 200-3 is a robust construction machine engineered for demanding tasks. This generation of the Zaxis series embodies Hitachi's commitment to quality and reliability, featuring a powerful 6.69 L diesel engine that delivers 110 kW of gross power at 2100 rpm. Its hydrostatic transmission with a 2-speed travel system and planetary gear reduction ensures efficient power transfer and maneuverability. Designed for heavy-duty applications, the Zaxis 200-3 boasts an operating weight of 20,300 kg and impressive working dimensions, including a maximum digging depth of 6.62 meters and a reach of 9.86 meters, making it a versatile tool for excavation and material handling. This Workshop Service Repair Manual in English provides comprehensive guidance for mechanical technicians. It covers essential maintenance procedures, including detailed specifications for lubrication and cooling systems, such as engine oil capacity of 29 L and coolant capacity of 40 L. The manual also delves into the intricacies of the hydraulic system, detailing pump flow rates and relief pressures, as well as information on the undercarriage, working equipment, and travel and swing systems. By offering detailed technical specifications and repair instructions, this manual serves as an indispensable resource for ensuring the optimal performance, longevity, and safety of the Hitachi Zaxis 200-3.