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 564 of 828

TM 9–2350–311–20–2

13–8

13–3 SEAT ADJUSTER ASSEMBLY

This task covers:

a.

Disassembly

b.

Assembly

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

a.

Disassembly

1

Remove permanent washer (1), headless shoulder pin (2), and two rollers (3) from seat carriage (4).

2

Remove headed grooved pin (5) from manual control handle (6) on seat carriage (4).

3

Remove headless grooved pin (7) from rod end clevis (8). This will release manual control handle (6) along

with flat washer (9), spring (10), and sleeve bushing (11).

b.

Assembly

1

Install sleeve bushing (11), spring (10), flat washer (9), and manual control handle (6). Install headless

grooved pin (7) in rod end clevis (8).

2

Position manual control handle (6) on seat carriage (4) and install headed grooved pin (5).

3

Install two rollers (3), headless shoulder pin (2), and permanent washer (1) on seat carriage (4).

2

1

3

4

9

11

7

8

5

10

6