The Hitachi ZAXIS ZX250LCH-3 is a robust crawler excavator engineered for demanding construction and earthmoving applications. Featuring a powerful Hino J05E-TNB turbocharged diesel engine with a displacement of 5.123 L, it delivers a net power output of 132 kW (177 HP) at 2000 rpm, meeting EPA Tier 3 and EU Stage IIIA emission standards. Its hydraulic motor drive system with planetary gear reduction ensures efficient power transfer, while the operating weight of 24,900 kg and a ground pressure of 0.56 kg/cm² provide stability on various terrains. Notable features include a standard bucket capacity of 1.1 m³ and a ROPS/FOPS compliant cab equipped with an air conditioning system for operator comfort during extended use. This comprehensive Service Repair Manual provides detailed information essential for the maintenance and repair of the Hitachi ZAXIS ZX250LCH-3. It covers critical areas such as engine specifications, including fluid capacities for engine oil, hydraulic oil, and coolant, as well as maintenance schedules for oil changes. The manual also details the hydraulic system, transmission, undercarriage components, and cab features. With clear instructions and technical specifications, this manual is an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance, longevity, and safety of their equipment.