The Hitachi ZAXIS 75US is a versatile excavator from the ZAXIS Series, engineered for robust performance and reliability in various construction and excavation tasks. This model features a powerful Isuzu 4JG1X diesel engine, delivering 50.6 kW of rated power, and a hydrostatic drive system for efficient operation. With an operating weight of 7,340 kg and impressive digging capabilities, including a maximum digging depth of 4,220 mm and a reach of 6,550 mm, the ZAXIS 75US is designed to meet demanding job site requirements. Its compact dimensions and precise hydraulic system further enhance its utility in confined spaces and intricate projects. This Service Repair Manual provides comprehensive information for the Hitachi ZAXIS 75US excavator. It covers essential maintenance procedures, detailed troubleshooting guides, and critical technical specifications, including engine details, hydraulic system parameters, and fluid capacities. The manual is intended to assist owners, technicians, and mechanics in performing routine maintenance, identifying and resolving issues, and ensuring the optimal performance and longevity of the equipment. By following the guidelines within this manual, users can effectively maintain and repair their ZAXIS 75US, maximizing its operational efficiency and service life.