This Service Repair Workshop Manual provides comprehensive information for the 553 Skid Steer Loader, specifically covering serial number ranges S/N 539112001 & Above and S/N 539412001 & Above. Engineered for reliability and performance, the 553 is a robust machine designed for demanding work environments. Its hydrostatic transmission ensures smooth and efficient power delivery, making it a versatile tool for various applications. This manual details the diesel engine commonly found in this model, offering insights into its operation and maintenance. This manual serves as an essential resource for owners and experienced mechanics alike, offering highly detailed, factory-level service and repair procedures. It includes step-by-step instructions, hundreds of photos, and illustrations to guide users through complete disassembly, service, and repair processes. Key areas covered include safety and maintenance, hydraulic and hydrostatic systems, drive systems, the main frame, electrical system analysis, engine service, and specifications. The English language manual is provided in format, compatible with all versions of Windows and Mac, and is fully printable for convenient use.