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SHALL BE <br />AS <br />TYPE DESCRIPTION SPECIFIED <br />(Circle One) <br />-Underbodv Circle: 1" solid one-piece circle 45 degree rotation <br />with infinite plowing positions; no notches. <br />-Reinforced with 1/4" x 3"and 1" x 3" bar stock. <br />Circle shall not exceed 52" diameter. <br />Circle cut outs for angle cylinder pin bosses must be as small as <br />possible 5" 1D x 6.5" OD x 1" hardened center bushing. <br />Center Pin: Heavy duty, 5" diameter, hardened center pin, zinc <br />coated greaseable with 3 port grease journal and 5/16" wide x 3/16" <br />deep grease groove around pin. <br />Centel- pin is piloted into Hangerboard <br />Circle Clamps: 20.5" long x 7" deep x 1" thick <br />Shaped to follow the contour of the circle. <br />-3/8" UHM.W wear pads. <br />-Entire clamps must remain fully on the circle throughout the entire <br />rotation of the scraper. <br />-Reversing Cylinders and Hardware: Two (2) 4" x 12" double <br />acting cylindtSoc�a <br />'" #8 SAE ports. <br />-2" diameterri 000cylinder rods. MT2r0 t <br />-Poly-Pack seals and cast steel heads. <br />-3" OD x 2" ID cylinder pivot mounts. <br />-2" diameter hardened pivot pins, zinc coated with spiraled grease <br />groove around full pin. <br />-30 gpm pressure adjustable cross over relief valve. <br />-Hangerboard shall be designed and engineered for optimum <br />strength and durability. <br />-'/z" formed plate upper with 5' diameter center pin pilot dole. <br />-'/�" formed lower plate for 1" thickness full width of hanger -board. <br />-3.25" x .344" mechanical tube outer .hinge tubes. <br />-'/4" thick trunion arias. <br />-Outer trunion arms are bolted to hanger -board. <br />-Hinge: 2 l/i" diameter x 96" long solid shaft. <br />-Four (4) grease points. <br />-Three (3) hinges that are bolted to the moldboard. s" <br />-All Binges are 3 1/a" OD with .344" wall thielcuess mechanical tube, z �' �y N <br />-Outer hinges are 6" long and have %" wrap around gussets.T'�^� <br />-Center hinge is 10 /4 " with two %" wrap around gussets. <br />-Center hinge tlu-ust plates to prevent side shifting of moldboard <br />and hinge tube contact. <br />-Actuating C tinders: Two (2) 3-1/2" x 10" double acting cylinders <br />with 2' ocatri 1000 piston rods <br />-Poly Pack seals and cast heads. <br />22 <br />