TM-9-2350-311-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 445 of 1275

TM 9-2350-311 -20-1

CONTINUED FROM STEP A

B

1. Install LED in NBC indicator light assembly.

2. Disconnect lead 439L from NBC indicator

light assembly.

4. Place red lead of multimeter in lead 439L and

black lead to ground.

5. Turn MASTER switch ON and check for

voltage.

6. Turn MASTER switch OFF.

Is voltage present?

I

I

I Replace NBC indicator light

I

I

assembly (para 8-17).

I

Repair or replace lead 439L of ventilated face

piece system power harness (para 8-62).

END OF TASK

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