The Hitachi ZAXIS ZX330-3 is a robust Crawler Excavator from the 3 Series generation, engineered for demanding construction and earthmoving applications. This model combines powerful performance with operational efficiency, featuring a robust Hitachi construction and a reliable Isuzu AH-6HK1X diesel engine. Its design prioritizes durability and productivity, making it a dependable choice for various heavy-duty tasks. With an operating weight ranging from 32,500 to 33,800 kg and impressive dimensions, the ZX330-3 is built to handle significant workloads. This Service Repair Manual provides comprehensive guidance for the Hitachi ZAXIS ZX330-3 Crawler Excavator. It covers essential maintenance procedures, detailed troubleshooting steps, and critical technical specifications necessary for optimal performance and longevity. The manual is designed to assist owners, mechanics, and technicians in understanding the machine's systems, performing routine service, and addressing potential issues effectively. By following the procedures outlined within, users can ensure the continued reliability and efficient operation of their equipment.