Specifications include, but are not limited to: 1.1 For safety, service, parts availability, etc the chassis shall be of a commercially available conventional cab type configuration. A purpose built chassis manufactured by the sweeper company will not be acceptable. 1.2 Chassis – Commercial Class 7. Wheelbase –Chassis dependent. Outside width in transport mode not to exceed 8’. 1.3 Gross Vehicle Weight Rating (GVWR) shall be not less than 33,000 pounds. 1.4 For safety, certification of Federal Motor Vehicle Safety Standard (FMVSS) compliance must be submitted with the proposal. All sweeper lighting must be LED (Brake, taillight, marker and beacon. 1.5 Chassis shall be capable of safely propelling the sweeper, loaded to the maximum GVWR, under all normal sweeping and transport conditions. 1.6 Vehicle shall be rated for carrying a 11,000 lbs. load in the hopper at highway speed of 55 MPH and should not be speed restricted by tire limitations. 1.7 Front axle shall be an I-beam type, with a minimum capacity of 10,000 lbs. Front axle shall have leaf spring suspension and shock absorbers as standard equipment to avoid high stress areas and cracking of the chassis. 1.8 Rear axle shall have a minimum capacity of 23,000 lbs. 1.9 Rear suspension shall be rubber cushion, air or spring type adequate for specified unit application with a minimum capacity of 23,000 lbs. designed for ride comfort and stability. 1.10 Rear axle shall provide a full width heavy duty, 80" track. 1.11 Two-speed rear axle shall have a 617/8.42:1 ratio. An auxiliary transmission for sweeping is not acceptable. 1.12 Brakes shall be full air dual circuit type with auto slack adjusters, front and rear. Wabco ABS or equal shall be 18.7 CFM. Dust shields shall be supplied on all wheel positions. 1.13 Air compressor 18.7 CFM Air compressor with Bendix AD-9 Air Dryer or equal.