Specifications include, but are not limited to: 1. General: This specification is intended to cover a four wheel, self-propelled, two way road sweeper with hydrostatic drive, having a chassis designed with broom between front and rear axles below operator’s platform. 2. Engine: Water cooled, four cycle diesel developing a minimum of 74 horsepower at rated RPM. Shall be equipped with 12 volt electric system including starter, battery, alternator and charge indicator. Shall have lube oil and fuel filter with replaceable elements, electric hour meter (oil pressure or fuel solenoid actuated), engine oil pressure and temperature gauges, tachometer, muffler and fuel tank as regularly furnished. A. Air Filtration System: Shall be equipped with a dry type air cleaner system with replaceable dual filter elements and pre-cleaner. Shall have an extended air stack which places the pre-cleaner at or above the top level of the cab. B. Anti-Freeze: Cooling system shall have anti-freeze protection to -20o F, or lower. C. Engine Shutdown: Shall be equipped with an automatic shutdown system which senses low oil pressure or high coolant temperature. 3. Transmission: Hydrostatic drive to rear axle. Transmission shall have a minimum of two (2) ranges with high range providing variable speeds up to 20 mph. Forward and reverse travel shall be controlled by means of foot pedal controls. 4. Rear Axle: Differential type with semi or full floating axles. Axle assembly furnished shall be heavy duty design with adequate load rating for the machine furnished. 5. Front Axle: Oscillating type heavy duty front axle. 6. Steering: Hydraulic power steering as regularly offered by manufacturer. 7. Brakes: Four (4) wheel hydraulic service brakes with parking brake as regularly furnished by manufacturer. If equipped with drum type service brakes, shall have shields to keep chips out of brake drums. 8. Rotary Broom: Shall be direct hydraulic driven rotary brush with hydraulic drive motor enclosed in the broom core. Shall be 96” in length and no less than 32” in diameter. Shall be filled with polypropylene material on metal core supported by self-aligning bearings. Broom shall have full hydraulic control from operator’s position. Shall have a sweeping angle of no less than 45o right or left. Shall be equipped with steel cover over broom core. Cover to enclose no less than 140o of broom core. 9. Hydraulic System: Shall provide for full control of broom lifting, lowering, drive to broom and rotation for sweeping angle. Pump shall be of adequate capacity to handle all functions above with polypropylene broom under normal operating conditions. Shall have necessary filters, relief valves, reservoir, cylinders, hose, etc. 10. Wheels and Tires: Wheels shall have a minimum diameter of 15 inches. Tires shall be steel belted radial type with highway tread, minimum 225/75R15 – load range C. All wheels shall be the same size and have an identical bolt pattern for both front and rear axle mounting positions.