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 743 of 1275

TM 9-2350-311-20-1

8-40 COMBAT OVERRIDE SWITCH ASSEMBLY (M109A4/M109A5)

—

This task covers:

a. Removal

b. Installation

Applicable Configurations

.

Materials/Parts

M109A4/M109A5

Lockwashers (2) (item 82, Appx G)

Lockwashers (2) (item 192, Appx G)

Tools

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

a. Removal

WARNING

Ensure MASTER switch is OFF when working on starter protection override switch to

avoid electrical shocks and burns.

1 Disconnect two electrical connectors (1).

2 Remove two screws (2), two Iockwashers (3), two washers (4), and combat override switch assembly (5).

Discard Iockwashers.

3 Remove two screws (6), two Iockwashers (7), two washers (8), and switch (9) from bracket (10). Discard

Iockwashers.

b. Installation

WARNING

Ensure MASTER switch is OFF when working on starter protection override switch to

avoid electrical shocks and burns.

1 Install switch (9), two washers (8), two new Iockwashers (7), and two screws (6) on bracket (10).

2 Install combat override switch assembly (5), two washers (4), two new Iockwashers (3), and two screws (2).

3 Connect two electrical connector (1).

8-98