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 199 of 828

TM 9–2350–311–20–2

3–87

Repair ground circuit from

terminal 1 of CAB POWER

indicator light (para 8–12).

1.

Turn CAB POWER and MASTER switches to

OFF.

2.

Place one multimeter lead on terminal 1 of CAB

POWER indicator light and other lead to ground.

3.

Check for continuity.

Is continuity present?

C

yes

no

CONTINUED FROM STEP A OR B

Replace indicator light

(para 8–12).

END OF TASK

–

+

TERMINAL

CAB POWER

INDICATOR

LIGHT