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 208 of 828

TM 9–2350–311–20–2
3–96
Change 2
3–3
TROUBLESHOOTING
— CONTINUED
h.
CAB LIGHTING SYSTEM
— CONTINUED
(4)
M15 ELEVATION QUADRANT LIGHT IS OUT,
BUT ALL OTHER LIGHTS OPERATE. — CON-
TINUED
Verify fault is corrected.
Continue normal opera-
tions.
Replace LED (para 18–6).
Does lamp light?
yes
no
CONTINUED FROM STEP B
END OF TASK
C
Wiring in M15 quadrant is
defective. Notify support
maintenance.


Back to Top