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 292 of 828

TM 9–2350–311–20–2

5–36

Change 2

5–13 DUST SHIELD AND VARIABLE RECOIL ACCESS COVER

This task covers:

a.

Removal

b.

Disassembly

c.

Inspection and Repair

d.

Assembly

e.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Adhesive (item 1, Appx D)

Gasket (item 111.1, Appx G)

Gasket (item 112, Appx G)

Gasket (item 121, Appx G)

Gasket (item 170, Appx G)

Gaskets (2) (item 169, Appx G)

Mechanical felt (item 122, Appx G)

Mechanical felt (item 171, Appx G)

Lockwashers (6) (item 80, Appx G)

Self-locking nuts (8) (item 34, Appx G)

Equipment Condition

Muzzle brake removed (TM 9–2350–311–10)

Bore evacuator removed (TM 9–2350–311–10)

a.

Removal

1

Remove four machine bolts (1), four lockwashers (2), and four flat washers (3) from dust shield (4). Discard lock-

washers.

2

Remove six machine bolts (5), six lockwashers (6), and six flat washers (7) from variable recoil access cover (8).

Discard lockwashers.

3

Slide dust shield (4), variable recoil access cover (8), gasket (9), and gasket (10) toward front of cannon tube.

Discard gaskets.

5

6

7

8

1

2

3

4

10

9