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SHALLBE <br />AS <br />DESCRIPTION SPECIFIE1 <br />hot rolled angle. <br />(Circle One) <br />Two I" x 3" x 5" positive stops are to be welded to semi-eircle and <br />set to allow moldboard to swing 35 degrees in either direction. <br />The push frame is to be 4" x 4" x 3/8" A36 wall square tubing 84" <br />in length. This tubing is to have eight 4" x 4-1/2" x 1/2" A36 <br />attaching ears, which are to form a four point pivot to affix the <br />moldboard onto the push frame attached with four 1-1/4" stress <br />proof plated pins. <br />There are to be two jack support channels 8" x 1. 8" A36 steel which <br />have six3/4" holes for mounting various optional shoe assemblies. <br />There shall be two compression trip assemblies consisting of three <br />pieces: V2" x 3-1/2" A36 steel mechanical slide, with a 5-5/16" O.D. <br />x 23-1/4" free height x 21/32" bar diameter spring. <br />The spring is to be made fi-om AISI 5160H steel with a tensile <br />strength of 112,000 - 140,000 PSI, rated at 195#/inch of <br />compression. <br />The reversing cylinders shall have a 3" bore x 10" stroke, 2" <br />diameter chrome plated rod. Nitrated cylinders are also acceptable. <br />The hydraulic hoses are to be abrasion resistant, extremely flexible <br />and work in a temperature range of -50 to 250 degrees F. The 1/2." <br />I.D. hose is rated at 3,000 PSI working pressure and 12,000 PSI <br />burst pressure. <br />Included with the hydraulic system is a DXV double relief cushion <br />valve set at 1,800 PSI. <br />The A -frame is to be constructed of 2-1/2" x 4" x 13.8# ship and car <br />channel with a I" x 5" oscillating plate. <br />The oscillating plate is to have a hole to accept a minimum 1-1/4" <br />bolt, 1.5" Henderson <br />All hardware and fasteners shall be electronically plated and <br />corrosion resistant. <br />a] <br />