This service manual covers the Hydraulic Excavator, a robust machine engineered for demanding construction and earthmoving applications. Featuring a powerful diesel engine with a displacement of 5.2 liters and an output of 121 kW (162 hp), this excavator is designed for reliability and efficiency. Its hydrostatic transmission with variable displacement axial piston motors ensures precise control and smooth operation. With an operating weight of 23,600 kg and impressive digging capabilities, including a maximum digging depth of 6,630 mm, the excavator is built to handle challenging tasks. The purpose of this comprehensive English-language service manual is to provide detailed technical information for mechanics and technicians. It covers essential areas such as maintenance procedures, lubrication requirements, filtration systems, and critical service intervals for optimal performance and longevity. This manual includes technical specifications for the engine, transmission, hydraulic system, and dimensions, along with troubleshooting guidance. By utilizing the information within this document, owners and service professionals can effectively maintain, diagnose, and repair the Hydraulic Excavator.