The Hyundai Robex 55-7 Crawler Excavator is engineered for robust performance and reliability in demanding construction environments. This versatile machine, powered by a diesel engine with approximately 50-60 HP and a displacement of 4.5 liters, features a hydrostatic transmission and 4WD crawler drive system for exceptional maneuverability and power transfer. With an operating weight of approximately 5,200 kg, a digging depth of up to 3,800 mm, and a bucket capacity ranging from 0.18 to 0.25 m³, the Robex 55-7 is designed for efficient excavation and material handling. Its construction quality ensures durability for extended operational life. This Service & Repair Workshop Manual provides comprehensive guidance for maintaining and repairing the Hyundai Robex 55-7 Crawler Excavator. It covers essential procedures, including detailed maintenance schedules with intervals for engine oil changes and hydraulic filter replacements, as well as fluid capacity specifications for engine oil, hydraulic oil, and coolant. Technical specifications, troubleshooting information, and safety guidelines are also included, empowering owners, mechanics, and technicians to ensure optimal performance, longevity, and safe operation of the equipment.