The Hitachi Zaxis 225 USRLC 3 is a robust construction machine engineered for demanding tasks. This excavator, powered by a diesel engine, features a hydrostatic transmission for efficient operation and a durable undercarriage designed for stability. With an operating weight of approximately 21,500 kg and impressive digging capabilities, it is built for reliability and performance in various construction environments. Its design prioritizes operator safety with a ROPS and FOPS certified cab, reflecting Hitachi's commitment to quality engineering. This Workshop Service Repair Manual provides comprehensive guidance for the Hitachi Zaxis 225 USRLC 3. It covers essential maintenance procedures, including recommended fluid types and capacities, service intervals for critical components like the engine oil and hydraulic filters, and detailed technical specifications for the engine, hydraulics, and dimensions. The manual is an indispensable resource for owners, mechanics, and technicians, offering the necessary information to ensure proper maintenance, efficient operation, and effective troubleshooting of the equipment.