TM 9--2350--292--20--10152 00--1GRENADE LAUNCHER FAILS TO OPERATE PROPERLY. SOME OR ALLTUBES FAIL TO OPERATE. ALL OTHER SYSTEMS OPERATE PROPERLY.0152 00THIS WORK PACKAGE COVERS:Grenade Launcher Fails To Operate Properly. Some Or All Tubes Fail To Operate. All Other Systems OperateProperlyINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Multimeter (item 84, WP 0717 00)Equipment ConditionsVehicle MASTER switch OFF (TM 9--2350--292--10)Personnel RequiredTwoIs 24 V dc present?1. Disconnect harness 4W108 from armingswitch assembly.2. Turn MASTER switch ON(TM 9--2350--292--10).3. Place multimeter red lead in harness 4W108arming switch connector socket A and blacklead to ground. Check for voltage.4. Turn MASTER switch OFF(TM 9--2350--292--10).noyesnoyesABCONTINUED ON NEXT PAGE1. Turn ARM SMOKE switch to ON(TM 9--2350--292--10).2. Place one multimeter lead on arming switchassembly receptacle pin A and other lead onpins B and D (one at a time). Check forcontinuity.3. Turn ARM SMOKE switch to OFF(TM 9--2350--292--10).Is continuity present at both checks?WARNINGRemove rings, bracelets, wristwatches,and neck chains before working on anyvehicle. Jewelry can catch on equip-ment and cause injury, or may shortacross an electrical circuit and causesevere burns or electrical shock.Repair (WP 0290 00) or replace(WP 0674 00) harness 4W108.Verify fault is corrected.Repair ARM SMOKEswitch (WP 0671 00).Verify fault is corrected.
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