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 595 of 828

TM 9–2350–311–20–2

Change 2

14–31

14–9 BUSTLE DOOR ARM CLEVIS ASSEMBLY

This task covers:

a.

Disassembly

b.

Assembly

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Retaining clips (2) (item 173, Appx G)

Sealing compound (item 30, Appx D)

Sleeve bearing (item 110.1, Appx G)

Sleeve bearings (2) (item 109, Appx G)

Spring pins (2) (item 19, Appx G)

Spring pin (item 17, Appx G)

Equipment Condition

Disassemble bustle door assemblies (para 14–8)

NOTE

Procedures are written for removing clevis from left bustle door, but also apply to removing clevis

from right bustle door.

a.

Disassembly

1

Remove two spring pins (1), spring pin (2), two locking arms (3), and door handle (4) from clevis (5) on left

bustle door. Clevis assembly will now come off. Discard spring pins.

2

Remove retaining clip (6) and headed grooved pin (7) from clevis (5). Discard retaining clip.

3

Remove two sleeve bearings (8) from clevis (5) and discard.

4

Remove sleeve bearing (9) from clevis (5) and discard.

b.

Assembly

1

Install new sleeve bearing (9) on clevis (5).

2

Apply sealing compound to two new sleeve bearings (8) and install on clevis (5).

3

Install headed grooved pin (7) and new retaining clip (6) on clevis (5).

4

Aline holes on clevis (5) with holes in door handle (4) and two locking arms (3), then secure with two new

spring pins (1) and new spring pin (2).

3

3

4

6

2

9

5

7

1

8

8

8

1