The Volvo EC20C is a compact excavator engineered for reliable performance in various construction and utility applications. This versatile machine combines robust construction with efficient operation, featuring a Yanmar 3TNV76-NB1 diesel engine that delivers 15.7 HP for demanding tasks. Its hydrostatic transmission ensures smooth power delivery and precise control, while its compact dimensions and operating weight of 1960 kg make it ideal for maneuverability in confined spaces. The EC20C is designed to meet the needs of professionals requiring a dependable and capable compact excavator. This Service Manual provides comprehensive information for the Volvo EC20C compact excavator. It covers all aspects of maintenance, repair, and technical specifications necessary for optimal performance and longevity. Included are detailed procedures for engine service, hydraulic system maintenance, drivetrain adjustments, and fluid capacity guidelines. This manual is intended for professional workshop technicians, offering the essential knowledge to perform diagnostics, troubleshooting, and all levels of repair with accuracy and efficiency, ensuring the machine operates at its peak.