TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 136 of 828

TM 9–2350–311–20–2

Change 2

3–27

Verify fault is corrected.

Continue normal opera-

tions.

Verify fault is corrected.

Continue normal opera-

tions.

1.

Clean obturator spindle nut (TM 9–2350–311–10).

2.

Install obturator spindle nut (para 5–7).

3.

Install firing mechanism (TM 9–2350–311–10).

4.

Install primer and attempt to fire

(TM 9–2350–311–10).

Does primer fire?

yes

no

CONTINUED FROM STEP E

yes

no

Notify support

maintenance.

F

Notify support

maintenance.

END OF TASK

CONTINUED FROM STEP D