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uire [)y VIJ A Jores <br />work port relief set at 500 psi, <br />4. Underbody plow angle, double acting cylinder with <br />auxiliary cross port relief valve to protect cylinder. <br />5. Spinner attachment, dual compensated control. <br />6. Plow lift, double acting cylinder with down side work port relief <br />set at 500 psi. <br />7. Valve Controls and Enclosure: The valve assembly shall be <br />mounted in weather -tight enclosure. The valve enclosure shall be <br />fabricated of 12-gauge steel. Enclosure shall be designed to not <br />allow humidity to be trapped inside. Valve to be mounted with all <br />ports coming out of the bottom and holes allowing for hose adaptor <br />fitting. Enclosure will allow for bulkhead style cable to enter the <br />front, Valve will be boxed in with cover and not the base. The <br />cover shall be held to the enclosure by four heavy rubber latches. <br />All plumbing shall be external, directly out the bottom of the valve <br />enclosure. <br />Specifications for Mounting Underbody Blade Assemblies <br />It is the intent of these specifications to describe an adjustable YES 0 <br />angled underbody scraper assembly. <br />Note: In bidding this item, please include any cab controls or <br />hydraulic modifications necessary. <br />Each truck shall be equipped with a root model F-89 or equal <br />underbody truck scraper. <br />Hanger board shall be not less than 10"' x 30 lbs. Structural channel <br />reinforced by 1/2" x 8" plate and by 4" S & C 13.84 Channel the <br />entire length of hinge line. <br />Hinge shaft shall be not less than 2" OD high carbon steel. <br />Moldboard shall be 10,' long, I " x 20 " heat treated high carbon <br />steel, offset for USS punched blades. Circles shall be constructed <br />of heavy duty 1 " thick solid steel. One (1) piece design (no casting} <br />with four (4) independent heavy duty mounting legs of 4" S & C <br />channel 13.8# per foot. Moldboard shall be cushioned by two (2) <br />heavy duty cushion spring shock absorber assemblies. <br />Scrapers shall have dual cylinders. Power reverse with two (2) 4" <br />double acting cylinders with chrome plated rods, Cylinder rods <br />clevis bosses to be 2"' OD carbon steel, solid welded to the top and <br />bottom of the hanger board. Scraping angle should not be less than <br />45 degrees adjustable as desired. All moving parts shall be zerk <br />equipped. Power shall be provided from central hydraulic system. <br />21 <br />