This workshop service repair manual covers Hitachi Zaxis series excavators, including models Zaxis 200, 225USR, 225US, 230, and 270. These diesel-powered machines feature a Common Rail Direct Injection (CRDI) fuel system and are designed for robust performance in various construction and excavation applications. Engineered for reliability and efficiency, the Zaxis series is known for its advanced hydraulic systems, hydrostatic swing and travel, and durable construction, making them a trusted choice for demanding work environments. This comprehensive English-language manual provides detailed information essential for the maintenance and repair of your Hitachi Zaxis excavator. It covers a wide range of topics, including routine service procedures, detailed technical specifications for engine, hydraulics, and undercarriage, as well as operational data. By following the guidelines and procedures outlined within, owners, mechanics, and technicians can ensure optimal performance, longevity, and safe operation of the equipment.