TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 188 of 775

TM 9–2350–311–10

2–92

Change 3

2–9

INITIAL ADJUSTMENTS AND CHECKS — CONTINUED

2–9.2

Adjustments

a.

Adjusting Driver’s Seat

1

Raise vertical adjusting lever (1) to adjust driver’s seat (2) height. Release vertical adjusting lever to lock

driver’s seat in position.

2

Raise horizontal adjusting bar (3) to adjust driver’s seat (2) forward and backward. Release horizontal

adjusting bar to lock driver’s seat in position.

3

Press pawl (4) to position backrest assembly (5) forward or backward. Release pawl to lock backrest

assembly in position.

4

Remove quick release pin (6) to raise or lower backrest assembly (5) to desired height. Install quick

release pin to lock backrest assembly in position.

1

2

3

4

5

6