TM 9-2350-277-20-1
SMOKE GRENADE LAUNCHER(S) MALFUNCTION (M113A3, M901A3,
M981A3, AND M1059A3 ONLY)
0045 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanics Tool Kit (WP 0926 00, Item 65)
Multimeter (WP 0926 00, Item 30)
Jumper wire
Personnel Required
Unit Mechanic
Helper (H)
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Trim vane lowered (see your -10)
Power plant access door open (see your -10)
Harness 12313235 removed from launcher arming/firing
unit (WP 0366 00)
T
1. Does either launcher operate properly?
YES
NO
GO TO BY (PAGE 0045 00-3)
Y
1. Remove harness 12313237 launcher plug (1) from failing right
launcher.
2. Remove harness 12313237 circuit 7 (2) and 799 plugs (3) from
harness 12313236 (right launcher) or harness 12313235 (left
launcher) jacks (4).
3. Measure resistance between harness 12313237 launcher plug (1)
pin A (5) and plug 7 (3) circuit.
4. Measure resistance between harness 12313237 launcher plug (1)
pin C (6) and circuit 7 plug (2).
5. Does multimeter read 0 ohms for both measurements?
YES
NO
YN
1. Replace harness 12313237 for left or
right grenade launcher
(WP 0366 00).
2. Verify no faults found.
0045 00-1