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 297 of 828

TM 9--2350--311--20--2

Change 4

5--41

5--15 M140/M140A1 ALINEMENT DEVICE MOUNT ACCESS COVER

This task covers:

a.

Removal

b.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(CL 5180--95--A12, see SC 9999--01--SKO)

Materials/Parts

Adhesive (item 1, Appx D)

Lockwashers (2) (item 69, Appx G)

Preformed packing (item 49, Appx G)

Spring pin (item 10, Appx G)

a. Removal

1

Remove spring pin (1), pin (2), and access cover (3). Discard spring pin.

2

Remove preformed packing (4) from access cover (3). Discard preformed packing.

3

Remove two machine screws (5), two lockwashers (6), and clamping catch (7). Discard lockwashers.

4

Remove setscrew (8) and eccentric pin (9) from base (10).

b. Installation

1

Install eccentric pin (9) and setscrew (8) into base (10).

2

Install clamping catch (7) with two machine screws (5) and two new lockwashers (6).

WARNING

Adhesives can burn easily, can give off harmful vapors, and are harmful to skin and clothing. To

avoid injury or death, keep away from open fire and use in well-ventilated area. If adhesive gets on

skin or clothing, wash immediately with soap and water.

3

Apply adhesive to new preformed packing (4) and install on access cover (3).

4

Install access cover (3) with pin (2).

5

Install new spring pin (1).

3

1

2

4

5

6

7

10

9

8