This service repair workshop manual covers the Hyundai HSL600T and HSL680T Skid Steer Loaders. These machines are engineered for demanding operational environments, offering robust performance and reliability. Their design prioritizes efficiency and durability, making them suitable for a wide range of construction, landscaping, and material handling tasks. The manual provides comprehensive information to ensure these vehicles operate at their peak potential. The purpose of this manual is to provide detailed guidance for the maintenance, repair, and technical understanding of the Hyundai HSL600T and HSL680T Skid Steer Loaders. It includes in-depth coverage of critical systems such as the hydraulic system, hydrostatic drive system, final drive, controls, electrical system, main frame, and engine. With easy-to-read text, high-quality diagrams, and clear instructions, this manual empowers owners and technicians to perform routine maintenance, diagnose issues, and execute repairs effectively, promoting longevity and optimal performance of the equipment.