This manual covers the Hitachi Zaxis 250LCK-3 excavator, a robust piece of equipment designed for demanding construction and earthmoving tasks. Engineered for reliability and performance, this excavator features a diesel engine and a hydrostatic transmission, contributing to its operational efficiency. Its approximate operating weight is 25,000 kg, making it suitable for heavy-duty applications where power and stability are paramount. The operator station is equipped with a ROPS compliant cabin for enhanced safety. This comprehensive Service Repair Workshop Manual in English provides essential information for maintaining and repairing the Hitachi Zaxis 250LCK-3. It details critical maintenance procedures, including recommended engine oil specifications and capacities for engine and hydraulic oil, alongside troubleshooting guidance. Technical specifications and safety information are also included, empowering owners, mechanics, and technicians to ensure the optimal performance and longevity of the excavator through proper care and repair.