This manual covers the HITACHI HYDRAULIC EXCAVATOR ZAXIS ZX 135 UR. Designed for robust performance and reliability, this excavator is engineered to meet demanding operational needs. Its construction prioritizes durability and efficiency, making it a valuable asset for various construction and heavy-duty applications. This comprehensive service and repair manual provides detailed information essential for the maintenance and upkeep of your HITACHI HYDRAULIC EXCAVATOR ZAXIS ZX 135 UR. It includes technical data, circuit diagrams, and specific procedures for systems such as the fuel, cooling, engine, transmission, brakes, electrical system, and more. This resource is intended to assist owners, mechanics, and technicians in performing repairs, learning about the equipment, and ensuring optimal operational performance.