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 204 of 828

TM 9–2350–311–20–2

3–92

Change 2

3–3

TROUBLESHOOTING

— CONTINUED

h.

CAB LIGHTING SYSTEM

— CONTINUED

(2)

M118A2/M118A3 ELBOW TELESCOPE LIGHT

IS OUT, BUT ALL OTHER LIGHTS OPERATE.

— CONTINUED

CONTINUED FROM STEP B

Verify fault is corrected.

Continue normal opera-

tions.

yes

no

C

Replace lamp (para 18–2).

Does lamp light?

Wiring in M146 mount is

defective. Notify support

maintenance.

END OF TASK