The Hitachi Zaxis 225USR-3 is a hydraulic excavator designed for demanding construction and earthmoving applications. This model, part of the USR-3 Series, is engineered for robust performance and reliability, featuring a reduced tail swing for enhanced maneuverability in confined spaces. Its construction emphasizes durability and operational efficiency, making it a valuable asset for various professional tasks. This Workshop Service Manual (WSM) provides comprehensive guidance for the maintenance and repair of the Hitachi Zaxis 225USR-3. It covers essential procedures, technical specifications, and troubleshooting information crucial for ensuring optimal performance and longevity of the equipment. This manual is an indispensable resource for owners, operators, and technicians seeking to maintain the integrity and functionality of their excavator.