This workshop service and repair manual provides comprehensive information for the Thomas T183HD and T233HD Skid Steer Loaders. Engineered for demanding applications, these machines are built with a focus on reliability and performance, featuring a robust hydrostatic drive system designed for efficient power transfer and precise control. The manual details the construction and operation of these skid steer loaders, intended for various repair, maintenance, and servicing tasks. This manual serves as an essential resource for maintaining and repairing your Thomas skid steer loader. It covers critical systems including hydraulics, the hydrostatic drive system, final drive, controls, electrical systems, the main frame, and engine. With step-by-step instructions and detailed illustrations, this document provides the technical information and specifications necessary for effective servicing, ensuring your equipment operates at peak performance and longevity.