The Hitachi ZX225USLC-3 is a robust excavator engineered for demanding construction and earthmoving applications. Featuring a powerful Isuzu 6HK1X diesel engine with a displacement of 7.8 L, it delivers a net power of 120 kW (161 hp) at 2000 rpm, ensuring efficient operation. Its hydrostatic drive system and impressive operating weight of 23,200 kg (51,147 lbs) contribute to its stability and performance on various job sites. The ZX225USLC-3 is designed with precision and reliability in mind, making it a valuable asset for any project requiring significant digging and material handling capabilities. This Service Repair Workshop Manual provides comprehensive guidance for the Hitachi ZX225USLC-3 excavator. It covers essential maintenance procedures, detailed troubleshooting steps, and critical technical specifications, including engine details, hydraulic system information, and operational dimensions. The manual is intended to assist owners, mechanics, and technicians in performing routine upkeep, diagnosing issues, and executing repairs effectively. By following the instructions within this English-language manual, users can ensure the longevity, optimal performance, and safe operation of their Hitachi ZX225USLC-3.