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 709 of 1275

TM 9-2350-311 -20-1

8-24 HEADLIGHT MOUNT

This task covers:

a. Disassembly/Repair

b. Assembly

Tools

Gasket (item 150, Appx G)

General mechanic’s tool kit (item 64, A

PPX

H)

LockWashers (4) (item 96, Appx G)

Silicone compound (item 18, Appx D)

Materials/Parts

Antiseize compound (item 8, A

PPX

D)

. .

Equipment Conditions

Gasket (item 139, Appx G)

Headlight sockets removed (para 8-22)

Gasket (item 149, Appx G)

a. Disassembly/Repair

1

2

3

4

5

6

7

8

9

Ensure MASTER switch is OFF when working on headlight mount to avoid electrical

shock and bums.

Remove headlight wiring harness (1) from headlight body (2).

Remove four nuts (3), four Iockwashers (4), and four flat washers (5). Discard Iockwashers.

Remove mounting bracket (6) and gasket (7). Discard gasket.

Remove three screws (8), plate (9), four screws (10), and gasket (11 ). Discard gasket.

Disconnect wiring harness terminals (12) at bulkhead-to-headlights bilge pump wiring harness (para 8-47).

Remove six screws (13).

Remove hull mount assembly (14) from hull.

Separate retainer (15), mount assembly (16), and gasket (17). Discard gasket.

Remove guide pin (18).

b. Assembly

WARNING

Ensure MASTER switch is OFF when working on headlight mount to avoid electrical

shock and burns.

8-64