This manual covers the Hyundai HSL810 Skid Steer Loader, a versatile machine engineered for demanding work environments. While specific production years are not detailed, the HSL810 is designed for robust performance and reliability, making it a valuable asset for construction, landscaping, and agricultural applications. Its hydrostatic transmission and comprehensive hydraulic system, including major components like the main pump, travel motor, and control valve, are central to its operational efficiency. This Service/Workshop Manual provides essential information for maintaining and repairing the Hyundai HSL810 Skid Steer Loader. It includes detailed maintenance procedures, technical specifications, and troubleshooting guides for various systems such as the power train, control system, and hydraulics. Safety hints are also incorporated to ensure safe operation and service. This manual is intended for owners, mechanics, and technicians seeking to keep their equipment in optimal working condition.