The Hitachi Zaxis 225USR-3 is a robust excavator engineered for demanding construction and earthmoving applications. This model, powered by a Cummins QSB6.7 turbocharged diesel engine producing 169 hp, features a hydrostatic transmission and 4-wheel drive for optimal traction and control. Its compact design, with a tail swing radius of 1,770 mm and an operating weight of approximately 23,200 kg, makes it suitable for confined job sites while maintaining impressive digging depth and reach. The Zaxis 225USR-3 is built for reliability and efficiency, offering a powerful and versatile solution for various heavy-duty tasks. This Service Repair Workshop Manual provides comprehensive guidance for the Hitachi Zaxis 225USR-3 excavator. It covers essential maintenance procedures, including fluid capacities for engine oil, hydraulic oil, coolant, and fuel. Detailed technical specifications, performance data, and diagnostic information are included to assist in troubleshooting and repair. The manual is designed to help owners, technicians, and mechanics understand, maintain, and service the excavator effectively, ensuring its continued optimal performance and longevity.