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 605 of 828

TM 9–2350–311–20–2

Change 2

15–3

Section I.

CAB AMMO RACK

15–1 RETAINER ASSEMBLY

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

Sealing compound (item 28.2, Appx D)

Self-locking screws (4) (item 21.2, Appx G)

Self-locking screws (4) (item 23, Appx G)

Serrated lock rings (4) (item 100, Appx G)

Spring pin (item 11.3, Appx G)

Wire swaging sleeves (2) (item 134, Appx G)

a.

Removal

NOTE

•

There are 22 retainer assemblies in the cab ammo rack, but procedures apply to only one. Re-

move only those retainers which require repair or replacement.

•

Each retainer assembly is held in place by two locking caps. For posts not on the perimeter of

the rack, the locking caps have an irregular shape somewhat like a triangle.

1

Remove two shoulder screws (1), two locking caps (2 or 3), and two quick-release plungers (4) from two

posts (5).

2

Remove machine bolt (6) from post (5) to release wire rope (7). Machine bolt will still be attached to wire

rope.

3

Remove retainer assembly (8) from projectile stowage rack assembly (9).

1

5

2

7

6

4

1

3

4

8

9

5