This Service Repair Workshop Manual provides comprehensive information for the Hyundai HSL600T and HSL680T Skid Steer Loaders. Engineered for demanding industrial applications, these machines are built to excel in material handling and site preparation tasks. Their robust construction and hydrostatic drive systems ensure reliable performance and efficiency in challenging environments. This manual details the engineering quality and operational capabilities that make these Hyundai skid steer loaders a valuable asset for any operation. The purpose of this manual is to serve as a complete guide for owners and technicians. It covers all aspects of maintenance, repair, and troubleshooting, including detailed procedures for disassembly and reassembly of the entire machine, supported by step-by-step instructions and detailed diagrams. Key areas addressed include the hydraulic system, hydrostatic drive, final drive, control systems, electrical systems, frame components, and engine. This resource is designed to empower both do-it-yourself enthusiasts and experienced mechanics to maintain the Hyundai skid steer loaders at peak performance and ensure their longevity.