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 374 of 828

TM 9–2350–311–20–2

6–52

Change 2

6–21 GUNNER’S/ASSISTANT GUNNER’S CONTROL ASSEMBLY HANDLES

This task covers:

a.

Removal

b.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Sealing compound (item 27, Appx D)

Equipment Condition

Gunner’s control assembly removed (para 6–19)

Assistant gunner’s control assembly removed (para

6–20)

NOTE

•

Some handles may have the gunner’s control lead assembly in place during removal. They are

not to be reassembled during the installation procedure.

•

Use identical service procedures for both the left and right handle assemblies.

a.

Removal

1

Remove shoulder screw (1) from handle (2) through access hole in bracket and housing group (3).

2

Remove setscrew (4) and straight shaft (5) from bracket and housing group (3).

3

Remove handle (2) from bracket and housing group (3).

NOTE

Retain shims unless new components are to be installed.

4

Remove shims (6) from bracket and housing group (3).

NOTE

If gunner’s control lead assembly is connected to the gunner’s control assembly handle, go to step 5.

5

Remove two cap screws (7) and two lockwashers (8).

6

Remove cap screw (9) and lockwasher (10).

7

Separate left and right handle halves (11 and 12).

8

Drive out headless straight pin (13).

9

Disconnect gunner’s control lead assembly (14) from setscrews (15).