The Hitachi Zaxis 225US / 225USR represents a robust and reliable excavator engineered for demanding operational environments. As part of the Zaxis Series, these machines are built with precision and durability in mind, featuring a powerful Hino J05E-TT diesel engine with a displacement of 5.12 liters, capable of producing up to 120 kW (161 hp) of net power. With an operating weight of approximately 22,500 kg and impressive digging capabilities, including a depth of around 6.65 meters and a reach of nearly 10 meters, the Zaxis 225US / 225USR is designed for efficient and effective earthmoving tasks. Its hydrostatic transmission with a two-speed travel system further enhances its versatility and performance on job sites. This comprehensive Factory Service Repair Manual provides essential information for the maintenance and repair of your Hitachi Zaxis 225US / 225USR excavator. It covers a wide range of critical topics, including detailed engine specifications, transmission systems, fluid capacities for engine oil, hydraulics, and coolant, as well as maintenance schedules for greasing points and filter replacements. The manual is designed to assist owners, technicians, and mechanics in understanding the intricate workings of the machine, performing routine servicing, troubleshooting potential issues, and ensuring optimal operational performance and longevity.