TM-9-2350-277-20-1

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 275 of 855

TM 9-2350-277-20-1

SMOKE GRENADE LAUNCHER(S) MALFUNCTION (M113A3 AND

M1059A3 ONLY) — Continued

0045 00

2Y

1.

Install jumper wire between harness 12313236 (right launcher) or

harness 12313235 (left launcher) and circuit 7 (1) or 799 jacks (2).

2.

Remove smoke grenade wiring harness from arming/firing unit.

3.

Measure resistance between harness 12313235 arming/firing

unit plug (3) pins C (4) and D (5) (left launcher check) or

pins E (6) and F (7) (right launcher check).

4.

Does multimeter read more than 0 ohms for both measurements?

2YN

1.

Smoke grenade wiring harness is

OK. Faulty launcher or arming firing

unit. Beyond unit maintenance

repair.

2.

Notify supervisor.

3Y

1.

Is failing launcher on right side of carrier?

3YN

1.

Smoke grenade wiring harness is

OK. Faulty launcher or arming/firing

unit. Beyond unit maintenance

repair.

2.

Notify supervisor.

004500-2

Change 5