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M. All cylinders, control valves, hoses and hydraulic fittings shall be of domestic convention <br />(no metric adapters permitted). <br />a. Hoses must all be high pressured and wire braid reinforced with a minimum <br />safety factor of 4: 1. <br />b. Cylinders must all have micro -honed I.D. cylinder tubing, chrome shafts, top <br />grade packing and protective rod wipers. <br />c. The hydraulic filtration system shall consist of the, following: <br />i. Suction strainer <br />ii. Return line filter, capable of providing 10-micron nominal filtration <br />iii. Pressure filter capable of providing 5-micron nominal filtration. <br />Outfiggers <br />A. Unit shall be stabilized by two (2), hydraulically operated outfigger assemblies. <br />B. The outriggers shall be Elliott "MH" or equivalent, type out -and -down design with an 18 <br />foot spread. The vertical legs shall telescope under the bed floor. <br />C. The secondary outriggers shall be "A" type underslung with a 12 foot 6 inch spread. <br />D. Horizontal and vertical movement of the outriggers shall be individually controlled. <br />E. Vertical outrigger cylinders shall be of the double acting type equipped with integral pilot <br />operated check valves capable of preventing drift fi-om both the retracted and the <br />extended positions even in the event of loss of hydraulic power or line failure. <br />F. The outrigger assemblies shall be solidly mounted to the subframe assembly. <br />G. Penetration of outrigger shoes shall not be less than six (6) inches below normal ground <br />level, <br />Interlock <br />A. Interlock systems, ANSI required system that prevents boom elevation unless outriggers <br />are deployed. <br />Operator Control System <br />A. The medium for transmitting control signals from the platform to the lower control <br />station shall be by means of electric cable. <br />B. The aerial device controls located at the platform shall consist of three (3) control handles <br />for operating boom extension, lift and rotation. Actuation of these three (3) functions <br />shall be accomplished by means of proportional electric controls. <br />C. Controls shall be meter pilot operated pressure compensated modulating views. <br />D. Control handles shall incorporate safety collars for unlocking handles prior to movement. <br />E. The aerial device controls located at the platform shall include a remote chassis engine, <br />start stop system. <br />F. The lower boom controls shall have individual control valve handles to override boom <br />function. <br />G. The lower boom controls shall be mounted on the roadside of the turret above rotation. <br />H. The lower controls shall include engine speed and start/stop switches, along with <br />upper/lower controls switch to override upper controls. <br />1. The outrigger -boom selector shall be mounted at the rear, under the bed. <br />15 <br />