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 531 of 1275

TM 9-2350-311-20-1

5-5 ENGINE MOUNT BASE ASSEMBLY

This task covers:

a. Removal

b. Disassembly

c. Assembly

d. Installation

Tools

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

Socket wrench (item 56, Appx H)

Materials/Parts

Cotter pins (4) (item 46, Appx G)

Cotter pins (2) (item 51, Appx G)

Equipment Conditions

Powerplant removed (para 4-5)

a. Removal

Remove four screws (1) and mount base assembly (2) using socket wrench.

b. Disassembly

1

2

3

4

5

Remove two cotter pins (3). Discard cotter pins.

Separate mount handle (4) and universal joint (5) and remove from mount base assembly (2).

Remove four cotter pins (6) and two jaw pins (7). Discard cotter pins.

Remove jaw assembly (8) from mount base (9).

Turn jaw (10) counterclockwise to remove from bolt (11 ).

5-10