This Service Repair Workshop Manual provides comprehensive information for the Hitachi ZX225USRLCK-3 Excavator. Engineered for demanding construction and earthmoving applications, this excavator is built with robust components and advanced technology to ensure reliable performance and operational efficiency. Its design prioritizes operator comfort and productivity, making it a valuable asset for a wide range of heavy-duty tasks. The LCK-3 generation signifies a commitment to continuous improvement and enhanced capabilities within the Hitachi excavator lineup. This manual serves as an essential guide for owners, mechanics, and technicians. It details all aspects of maintenance, repair, and troubleshooting for the Hitachi ZX225USRLCK-3 Excavator. Covered topics include detailed procedures for engine and hydraulic system servicing, component diagnostics, electrical system schematics, and technical specifications. By following the instructions within this manual, users can effectively maintain the machine's optimal condition, ensure longevity, and perform necessary repairs with confidence.