TM-9-2350-311-20-2

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 580 of 828

TM 9–2350–311–20–2

14–16

14–4 BUMPER ASSEMBLY, SIDE DOORS

This task covers:

a.

Removal

b.

Disassembly

c.

Assembly

d.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Cotter pin (item 38, Appx G)

Lockwashers (2) (item 81, Appx G)

Shims (V) (item 147, Appx G)

Shims (V) (item 148, Appx G)

Shims (V) (item 149, Appx G)

Shims (V) (item 150, Appx G)

NOTE

This procedure is written for the left door bumper assembly, but also applies to the right door bumper

assembly.

a.

Removal

Remove two cap screws (1), two lockwashers (2), bumper assembly (3), and shim(s) (4) from cab. Discard

lockwashers and shims.

b.

Disassembly

Remove cotter pin (5), headed straight pin (6), and bumper (7) from bumper assembly (3). Discard cotter

pin.

c.

Assembly

Install bumper (7), headed straight pin (6), and new cotter pin (5).

d.

Installation

Install new shim(s) (4), as required, and bumper assembly (3) on cab using two cap screws (1) and two new

lockwashers (2).

4

3

2

1

7

5

6

3