This workshop service repair manual covers the Wacker Neuson 501 and 501S skid steer loaders. These machines are engineered for demanding operational environments, offering robust performance and reliability. Designed for versatility, they are suitable for a wide range of construction, landscaping, and material handling tasks. The hydrostatic transmission and four-wheel drive system provide excellent maneuverability and power delivery, ensuring efficient operation in various conditions. This comprehensive manual provides detailed information essential for the maintenance, repair, and servicing of your Wacker Neuson skid steer loader. It includes in-depth procedures for routine maintenance, troubleshooting common issues, and performing complex repairs. Technical specifications, diagnostic guidance, and safety precautions are also covered to assist owners, technicians, and mechanics in keeping the equipment in optimal working condition.