The Hitachi ZAXIS ZX250LCN-3 is a robust Crawler Excavator engineered for demanding work environments. Built with a focus on reliability and performance, this third-generation model features a powerful Isuzu AA-6BG1T turbocharged diesel engine, delivering 134 kW of net power and 753 Nm of peak torque. Its hydrostatic drive system offers efficient travel speeds, while its substantial operating weight of 24,600 kg and impressive digging capabilities, including a maximum digging depth of 6,600 mm, make it suitable for a wide range of construction and earthmoving applications. This Service Repair Manual provides comprehensive guidance for the Hitachi ZAXIS ZX250LCN-3. It covers essential information for maintenance, repair, and operation, including detailed engine specifications, hydraulic system data, and lubrication capacities. The manual outlines recommended maintenance intervals for engine oil and hydraulic oil, crucial for ensuring the longevity and optimal performance of the excavator. This resource is designed to assist owners, technicians, and mechanics in effectively maintaining and troubleshooting the ZX250LCN-3, ensuring its continued operational efficiency and safety.