CHAPTER 16: MAINTENANCE OF M239 SMOKE GRENADE LAUNCHER SYSTEM TM 9-2350-256-2016-3 REPLACE FUEL SHUTOFF VALVE ASSEMBLYTHIS TASK COVERSa.Removalb.InstallationINITIAL SET-UPTools:Parts:Equipment Condition:Tool kit, general mechanic'sNuts, self-locking (2)Engine deck removed (see(Appendix C, item 53)(Appendix G, item 168)paragraph 9-51)Reference:TM 9-2350-256-10a.REMOVAL1Disconnect tube assembly (1) from elbow (2).2Remove elbow (2) from fuel shutoff valve (3).3Remove fuel hose assembly (4) by disconnectingfrom fuel shutoff valve (3) and from tee (5) at bottomof fuel/water separator (6).4Remove fuel shutoff valve (3) from mounting bracket(7) by removing two screws (8) and two self-lockingnuts (9).5Remove mounting bracket (7) from front shroudplate (10) by removing two assembled washerscrews (11).b.INSTALLATION1Install mounting bracket (7) on front shroud plate (10)with two assembled washer screws (11).2Install fuel shutoff valve (3) into mounting bracket(7) with two screws (8) and two new self-locking nuts(9).3Connect fuel hose assembly (4) to tee (5) at bottomof fuel/water separator (6) and to fuel shutoff valve(3).4Install elbow (2) on fuel shutoff valve (3).5Connect tube assembly (1) to elbow (2).WARNINGMove vehicle out of building before attempting to check system for operation/leaks and extinguish all openflames in the immediate area. Refer to TM 9-2350-256-10 for operating procedures.6Check all connections to ensure tightness.NOTEFollow-on maintenance: Install engine deck (see paragraph 9-51)16-6
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