This manual covers the HITACHI HYDRAULIC EXCAVATOR ZAXIS ZX 225 USR 3 CLASS. Designed for demanding work environments, this excavator represents robust engineering and reliability, offering powerful performance and efficient operation. Its construction and advanced systems are built to meet the rigorous requirements of heavy-duty applications, ensuring productivity and durability in various operational scenarios. This comprehensive service workshop manual provides detailed technical information essential for the maintenance and repair of the HITACHI HYDRAULIC EXCAVATOR ZAXIS ZX 225 USR 3 CLASS. It includes extensive data on general information, fuel systems, chassis, cooling systems, engine components, clutch, lubrication, drive systems, transmission, wheels and tires, final drive, brakes, suspension, steering, frame, and electrical systems, including wiring diagrams. This resource is invaluable for technicians and mechanics seeking to understand, maintain, and repair the equipment accurately.