This manual pertains to the Thomas 173 HLS II Skid Steer Loader, specifically for serial numbers LK000930-LK001899. Designed for efficient parts identification and assembly, this equipment embodies robust engineering for demanding operational environments. Its construction prioritizes reliability and performance, ensuring it meets the rigorous requirements of various industrial and construction applications. The purpose of this English-language Parts Catalog is to provide comprehensive guidance for maintaining and repairing your Thomas 173 HLS II. It covers essential areas including the Main Frame, Controls, Transmission, Hydraulic System, Hydrostatic Drive System, Electrical System, Engine Equipment, and Optional Equipment, supported by a Numerical Index. With step-by-step instructions, exploded diagrams, and clear illustrations, this manual is an invaluable resource for both do-it-yourselfers and experienced mechanics seeking to keep their skid steer loader in optimal working condition.