This workshop service manual covers the Toyota Huski Skid Steer Loader, specifically models within the 4SDK series, including the 4SDK3, 4SDK4, 4SDK5, 4SDK6, 4SDK8, and 4SDK10. These versatile machines are engineered for demanding work environments, featuring robust diesel engines and hydrostatic transmissions designed for reliability and efficient operation. The skid steer drive system provides exceptional maneuverability in confined spaces, making them ideal for construction, landscaping, and agricultural applications. This comprehensive manual provides detailed information essential for the maintenance, repair, and troubleshooting of your Toyota Huski Skid Steer Loader. It includes in-depth procedures for servicing the liquid-cooled diesel engine, hydrostatic drivetrain, and lubrication points. Technical specifications, safety guidelines, and diagnostic information are also covered to assist owners, mechanics, and technicians in ensuring optimal performance and longevity of the equipment.