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 581 of 828

TM 9–2350–311–20–2

Change 3

14–17

14–5 CAB SIDE DOORS, LEFT AND RIGHT

This task covers:

a.

Removal

b.

Disassembly

c.

Assembly

d.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 4933–95–A12)

Materials/Parts

Adhesive, type I (item 2, Appx D)

Lockwashers (2) (item 83, Appx G)

Pin (item 10.1, Appx G)

Plate spacers (V) (item 136, Appx G)

Seal (item 118, Appx G)

Sealing compound (item 30, Appx D)

Self-locking nut (item 185, Appx G)

Spring pin (item 11, Appx G)

Strip (item 172.2, Appx G)

Zinc chromate paste (item 23, Appx D)

Personnel Required

2

NOTE

This procedure is written for the left cab side door, but also applies to the right cab side door.

a.

Removal

1

Hold left cab side door (1) open at a 90

°

angle for removal.

2

Remove spring pin (2) from torsion bar anchor (3) and discard.

3

Remove two cap screws (4) from torsion bar bracket (5) at bottom of torsion bar (6).

4

To remove torsion bar bracket (5), tube (7), and flat washer(s) (8) from hinges (9), pull downward on torsion

bar bracket (5).

5

Remove left cab side door (1).

6

Remove torsion bar anchor (3) from cab.

4

5

6

8

8

2

3

1

7

9

9