The Hitachi Zaxis 225USLC-3 is a robust excavator designed for demanding construction and earthmoving applications. Engineered for reliability and performance, this model features a powerful ISUZU AA-6HK1XGQ diesel engine, delivering 125 kW (168 hp) and 745 Nm (550 lb-ft) of torque. Its hydrostatic transmission, with two forward and two reverse speeds, provides precise control for various tasks. With an operating weight of 22,400 kg and a length of 9,890 mm with arm and bucket, the Zaxis 225USLC-3 offers substantial capabilities for its class, complemented by a width of 2,990 mm and a height of 2,840 mm to the top of the cab. This Service Repair Workshop Manual in English is intended for mechanics and technicians. It provides comprehensive guidance for the maintenance and repair of the Hitachi Zaxis 225USLC-3 excavator. Key areas covered include detailed procedures for engine service, transmission operation, fluid capacities for engine oil, hydraulic systems, coolant, and fuel, as well as recommended fluid types and grades. The manual also contains technical specifications and safety guidelines essential for ensuring the longevity and optimal performance of the equipment.