This Parts Catalog covers the Thomas 173 HLS ProTough 1700 Skid Steer Loader, designed for demanding applications in construction, landscaping, and material handling. Engineered for reliability and performance, this machine is built to withstand rigorous use. The ProTough series signifies a commitment to robust construction and efficient operation, ensuring that operators have the dependable equipment necessary to complete their tasks effectively. This manual provides comprehensive coverage of the Thomas 173 HLS ProTough 1700, including detailed information on the Main Frame, Controls, Final Drive Transmission, Hydraulic System, Hydrostatic Drive System, Electrical System, and Engine Equipment. With highly detailed exploded pictures and step-by-step instructions, it serves as an invaluable resource for both do-it-yourself enthusiasts and experienced mechanics. The catalog includes top-quality diagrams and an alphabetical index, making it easy to identify and order the correct parts for maintenance and repair. All pages are printable for convenient on-site use.