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 254 of 775

TM 9--2350--311--10

2--156

Change 6

2--12 PREPARATION FOR FIRING — CONTINUED

2--12.1

Pre-Firing Emplacement — Continued

a. Emplacing Howitzer — Continued

WARNING

The M1A1 collimator is radioactively illuminated. Check for presence of illumination and

damage. If discovered broken, damaged, or defective, follow the procedures on pages b

and c.

12

Driver removes quick release pin (17), opens M42 tank periscope (18) cover door (19), and locks cover

door in open position with quick release pin.

13

Cannoneer no. 2 removes muzzle brake cover (20).

14

Assistant gunner removes M1A1/M1A2 collimator (21) and hands it to cannoneer no. 3 to emplace at

left front of howitzer.

17

18

19

20

21