The Hitachi ZAXIS ZX225USRLC-3 is a robust Crawler Excavator from the LC-3 generation, engineered for demanding construction and earthmoving applications. This model features a powerful Cummins QSB6.7 diesel engine, delivering 117 kW (157 hp) and 688 Nm (507 lb-ft) of torque, compliant with EPA Tier 3 and EU Stage IIIA emissions standards. Its hydrostatic drive system ensures efficient power transfer, while the overall operating weight of 22,800 kg and a ground pressure of 0.49 kg/cm² provide stability and maneuverability on various terrains. The ZAXIS ZX225USRLC-3 is designed for reliability and performance in challenging environments. This Service Repair Manual provides comprehensive information for the Hitachi ZAXIS ZX225USRLC-3 Crawler Excavator. It covers essential maintenance procedures, including fluid capacities and service intervals for engine oil and hydraulic oil filters, as well as troubleshooting guidance, detailed technical specifications, and safety protocols. The manual is intended to assist owners, mechanics, and technicians in effectively maintaining, servicing, and repairing the vehicle, ensuring its optimal performance and longevity. All information is presented in English.