TM 5-4220-231-14&Pb. Replace2(1) Use an allen wrench to loosen setscrew (2). Remove valve handle (1)3from stem of new valve (4). Removehex nut (3) from valve.4(2)Lubricate new O-ring (9), M83248/2-010, with silicone compound (item 9,Appendix D), and install over thethreads on positionable elbow (8).94(3)Install positionable elbow (8) in valve(4).8(4)Position the valve stem through panel3and loosely install hex nut (3) onvalve from the front of the panel.Align tube to positionable elbow prior4to securing hex nut.Install andsecure handle (1) on stem bytightening set screw (2) on valve8stem.Lubricate new O-ring (10),M83248/2-904, with silicone10compound (item 9, Appendix D), andinstall on positionable elbow (8).4-17
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