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 539 of 828

TM 9–2350–311–20–2

11–11/(11–12 blank)

11–4 HANDWHEEL ASSEMBLY

This task covers:

a.

Removal

b.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Key washer (item 26, Appx G)

a.

Removal

1

Unlock key washer (1).

2

Remove round nut (2), key washer (1), and handwheel assembly (3) from shouldered shaft (4). Discard key

washer.

b.

Installation

1

Install handwheel assembly (3) on shouldered shaft (4).

2

Install new key washer (1) and round nut (2).

3

Bend tab of key washer (1) over round nut (2) to lock.

4

3

1

2