TM 9--2350--292--20--10152 00--5GRENADE LAUNCHER FAILS TO OPERATE PROPERLY. SOME OR ALLTUBES FAIL TO OPERATE. ALL OTHER SYSTEMS OPERATE PROPERLY --CONTINUED0152 00JIs 24 V dc present at all four checks?CONTINUED FROM STEP InoyesCONTINUED ON NEXT PAGE1. Reconnect harness 4W108 to leads 1W112--1and 1W112--2.2. Disconnect leads 1W112--1 and 1W112--2 fromgrenade launchers.3. Turn MASTER switch and ARM SMOKE switchON (TM 9--2350--292--10). Press and hold bothfiring switches.4. Place multimeter red lead in leads 1W112--1and 1W112--2 launcher connector sockets Aand C (one at a time) while holding black leadto ground. Check for voltage.5. Release firing switches and turn MASTERswitch and ARM SMOKE switch OFF(TM 9--2350--292--10).Repair (WP 0290 00) or re-place (WP 0673 00) lead1W112--1 or 1W112--2(whichever is faulty). Verifyfault is corrected.KIs continuity present at both checks?noyesPlace one multimeter lead in lead 1W112--1 and1W112--2 socket B (one at a time) and other lead toground. Check for continuity.Repair (WP 0290 00) or re-place (WP 0673 00) groundlead of 1W112--1 or 1W112--2(whichever is faulty). Verifyfault is corrected.FORWARD
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