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 1073 of 1275

TM 9-2350-311-20-1

12-4 HEATER LAMPS

This task covers:

a. Removal

b. Installation

Tools

M109A4/M109A5

General mechanic’s tool kit (item 64, Appx H)

a. Removal

Ensure MASTER switch is OFF when working on hull electrical system to avoid

electrical shocks and bums.

NOTE

The following procedure applies to heaters at both driver’s and cannoneer no. 2’s

stations.

Heaters come in various designs. The following procedure applies to all of these

designs although actual heater may differ in appearance from those illustrated.

1 Turn lens (1) counterclockwise and remove.

2 Remove lamp (2).

12-12

Applicable Configurations

WARNING