TM 5-3810-306-20TWO-POSITION SELECTOR VALVETOOLS: General mechanic’s tool kit: automotive (5180-00-177-7033)SUPPLIES:Lockwashers (Item 5, Appendix C)Hydraulic oil (Item 6, Appendix C)Loctite #545 (Item 13, Appendix C)Preformed packing (Item 52, Appendix C)EQUIPMENT CONDITIONS: Disconnect ground cable at shunt. (Refer to page 8-109.)Operator’s seat and pedestal removed. (Refer to page 15-27.)Front access panel removed. (Refer to page 8-21.)REMOVAL:1.REMOVE TWO-POSITION SELECTOR VALVE.a.Unscrew knob (2) from top of two-positionselector valve (1).b.Remove nuts and lockwashers securingdistribution panel (covering two position selectorvalve). Discard lockwashers.c.Move distribution panel to allow access to valve(1) and hydraulic lines (3).d.Tag and remove hydraulic lines (3) from valve(1).e.Remove fittings (9) and preformed packings (8).Discard preformed packings (8).f.Remove two nuts (4), lockwashers (5) andcapscrews (6) securing valve (1) to mountingplate (7). Remove valve.INSTALLATION:NOTEPrior to installation, coat hydraulic lineand fitting threads with Loctite 545 andcoat preformed packing with hydraulicoil.1.INSTALL TWO-POSITION SELECTOR VALVE.a.Align holes in valve (1) with holes in mountingplate (7). Install two capscrews (6), newlockwashers (5) and nuts. Secure valve (1).b.Install fittings (9) with new preformed packings(8).c.Remove tags and connect hydraulic lines (3) tovalve (1).d.Place distribution panel on studs and secure withlockwashers and nuts.e.Screw knob (2) onto valve stem.2.INSTALL FRONT ACCESS PANEL. (REFER TOPAGE 8-21.).3.INSTALL OPERATOR’S SEAT AND PEDESTAL.(REFER TO PAGE 15-27.)4.CONNECT GROUND CABLE AT SHUNT.(REFER TO PAGE 8-109.)5.TEST PARKING BRAKE FOR PROPEROPERATION. (REFER TO TM 5-3810306-10.)END OF TASK16-12
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