TM 9--2350--292--20--1
0152 00--1
GRENADE LAUNCHER FAILS TO OPERATE PROPERLY. SOME OR ALL
TUBES FAIL TO OPERATE. ALL OTHER SYSTEMS OPERATE PROPERLY.
0152 00
THIS WORK PACKAGE COVERS:
Grenade Launcher Fails To Operate Properly. Some Or All Tubes Fail To Operate. All Other Systems Operate
Properly
INITIAL SETUP:
Tools and Special Tools
General mechanics tool kit (item 1, WP 0717 00)
Multimeter (item 84, WP 0717 00)
Equipment Conditions
Vehicle MASTER switch OFF (TM 9--2350--292--10)
Personnel Required
Two
Is 24 V dc present?
1. Disconnect harness 4W108 from arming
switch assembly.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Place multimeter red lead in harness 4W108
arming switch connector socket A and black
lead to ground. Check for voltage.
4. Turn MASTER switch OFF
(TM 9--2350--292--10).
no
yes
no
yes
A
B
CONTINUED ON NEXT PAGE
1. Turn ARM SMOKE switch to ON
(TM 9--2350--292--10).
2. Place one multimeter lead on arming switch
assembly receptacle pin A and other lead on
pins B and D (one at a time). Check for
continuity.
3. Turn ARM SMOKE switch to OFF
(TM 9--2350--292--10).
Is continuity present at both checks?
WARNING
Remove rings, bracelets, wristwatches,
and neck chains before working on any
vehicle. Jewelry can catch on equip-
ment and cause injury, or may short
across an electrical circuit and cause
severe burns or electrical shock.
Repair (WP 0290 00) or replace
(WP 0674 00) harness 4W108.
Verify fault is corrected.
Repair ARM SMOKE
switch (WP 0671 00).
Verify fault is corrected.