This Service & Repair Manual covers the Hyundai HSL600T and HSL680T Skid Steer Loaders. These heavy equipment machines are engineered for demanding operational environments, featuring a hydrostatic drive system designed for reliable performance and efficient power transfer. Their robust construction and advanced engineering ensure durability and productivity across a wide range of applications. This comprehensive manual provides detailed instructions for repair, servicing, and technical maintenance. It includes information on the Hydraulic System, Hydrostatic Drive System, Final Drive, Controls, Electrical components, Main Frame, Engine, and general Maintenance & Specifications. With actual photo illustrations, diagrams, and schemes, this manual is an essential resource for all skill levels, guiding owners and technicians through troubleshooting and repair procedures to maintain optimal vehicle performance and longevity.