The Thomas 173 HLS ProTough 1700 Skid Steer Loader, identified by serial numbers LK001900 through LK002799, represents a robust piece of equipment designed for demanding tasks. This model integrates a hydrostatic drive system, a comprehensive hydraulic system, and a reliable control system, all built upon a sturdy main frame. Its engineering emphasizes durability and performance, making it a dependable choice for various operational needs. This Parts Manual provides essential information for the maintenance and repair of your Thomas 173 HLS ProTough 1700 Skid Steer Loader. It details service and repair instructions, accompanied by high-quality diagrams, covering critical systems such as the powertrain, hydraulics, controls, electrical components, and engine equipment. The manual includes information on service frequency and fluid capacities, offering a complete resource for owners and technicians to ensure the longevity and optimal performance of the equipment.