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 119 of 828

TM 9–2350–311–20–2

3–10

3–3

TROUBLESHOOTING CHART — CONTINUED

a.

BREECH MECHANISM — CONTINUED

(2)

BREECH DOES NOT CLOSE COMPLETELY.

— CONTINUED

Verify fault is corrected.

Continue normal opera-

tions.

1.

Disassemble breech mechanism

(TM 9–2350–311–10).

2.

Inspect all components for damage (para 5–8).

3.

Replace damaged components.

4.

Assemble breech mechanism

(TM 9–2350–311–10).

Does breech close completely?

CONTINUED FROM STEP E

yes

no

END OF TASK

Notify support

maintenance.

F