The Hitachi Zaxis Series excavators, including models such as the Zaxis 200, 225USR, 225US, 230, and 270, represent a line of robust construction equipment engineered for demanding operational environments. These machines are designed with a focus on reliability and performance, incorporating advanced technologies to enhance productivity and efficiency. Their versatile capabilities make them suitable for a wide range of applications in the construction, mining, and infrastructure sectors, underscoring Hitachi's commitment to delivering durable and powerful machinery. This Service & Repair Workshop Manual provides comprehensive guidance for the maintenance and repair of the Hitachi Zaxis Series excavators. It covers essential areas including detailed maintenance procedures, troubleshooting techniques, technical specifications, and safety protocols. The manual is intended to assist owners, mechanics, and technicians in performing routine servicing, diagnosing issues, and executing repairs, thereby ensuring the optimal performance and longevity of the equipment.