Specifications include, but are not limited to: This specification describes the minimum requirements for a power reversing snowplow with nominal dimensions of ten feet long (10’L) X forty-two inches tall (42”T) and quick style hitch. 2.1 MOLDBOARD: Finished moldboard assembly shall have a usable height of at least forty-two inches (42”) but not more than forty-four inches (44”). Length shall be ten feet (10’). Backside of moldboard shall be reinforced by at least six (6) vertical ribs, ½” X 3”, formed to the full height of the plow. Moldboard shall be plated with 304 stainless steel, minimum thickness of 9/64” (10 ga). 2.1.1 Shape and contour of moldboard assembly shall provide an integral snow deflector or shield along the top edge. This effect shall be enhanced by the installation of a field replaceable rubber deflector as a continuation of the integral deflector. The rubber deflector shall be designed and constructed to yield under heavy snow loading. 2.1.2 Moldboard shall include a field replaceable, tungsten carbide steel edged, cutting edge such as Kennametal or equal. 2.2 PUSH TABLE: The push table and associated plow frame structures shall be designed and built to withstand the rigors of continuous municipal plowing. Primary structural member shall consist of four (4) inch square steel tubing, with a wall thickness of 3/8 inch. Design shall allow for hydraulic power angling through the use of two (2) double acting hydraulic cylinders with a minimum bore diameter of three inches (3”). 2.3 TRIP FUNCTION: Plow shall be designed and equipped to trip forward whenever an obstruction is encountered that would otherwise damage the plow or truck. Design shall return the moldboard to a plowing position once the obstruction is cleared. This function shall be accomplished by at least one (1) fully enclosed, fully adjustable trip spring assembly (cannon style). 2.4 CASTERS: Two (2) heavy duty, full swiveling, screw adjustable caster assemblies shall be installed. Caster wheels shall be supported by tapered roller bearings and caster assembly shall include shock absorbing springs. Steel caster wheels shall be provided with pneumatic tires. Wear points of caster assemblies shall be provided with grease fittings. 2.5 CUSHION VALVE: A valve shall be included to provide hydraulic cushioning and protection for the hydraulic cylinders. 2.6 CURB SHOES: Plow shall be equipped with curb guards on each side to prevent wear and damage of the cutting edge when plowing next to curbs and islands.
