This manual covers the 553 AF Series Skid Steer Loader, a versatile and robust machine designed for a wide range of construction, landscaping, and agricultural applications. Known for its compact size and powerful performance, the 553 AF Series is engineered with a reliable diesel engine, delivering 35.5 hp and featuring a liquid-cooled, 4-stroke, naturally aspirated design. Its hydrostatic, dual-path transmission ensures smooth and efficient power delivery, while the standard rubber track system provides excellent traction and stability. The loader boasts a rated operating capacity of 1300 lbs and a lift height to pin of 115.4 inches, making it an indispensable tool for demanding tasks. This comprehensive Parts Manual, in English, provides detailed information essential for identifying and ordering replacement parts for your 553 AF Series Skid Steer Loader, serial numbers 528111001 and above. It is meticulously organized to assist owners, technicians, and mechanics in maintaining the optimal performance and longevity of the equipment. Within these pages, you will find exploded views, part numbers, and specifications for all major systems, including the powertrain, undercarriage, hydraulics, and operator station. This resource is designed to ensure accurate part selection and facilitate efficient repair and maintenance procedures, upholding the quality and reliability of your machinery.