This manual covers the THOMAS 233 HD Skid Steer Loader, a robust machine engineered for heavy-duty operations. Built by THOMAS EQUIPMENT, this skid steer loader is designed for reliability and performance in demanding work environments. Its construction emphasizes durability and efficiency, making it a valuable asset for various industrial and construction applications. The 233 HD features a 4-cylinder, 4-stroke, liquid-cooled KUBOTA V2203 engine with a 2.2L displacement, coupled with a hydrostatic drive system for precise control. This comprehensive workshop service repair manual and parts catalogue provides essential information for maintaining and repairing the THOMAS 233 HD. It includes detailed procedures for routine maintenance, lubrication, and troubleshooting, along with specifications for tightening torques and special tools. Coverage extends to the hydraulic system, drive system, braking system, main frame, boom, electrical system, and more. This resource is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of their skid steer loader.