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 255 of 775

TM 9-2350-311-10

2–12

PREPARATION FOR FIRING

— CONTINUED

2-12.1

Pre-Firing Emplacement — Continued

a.

Emplacing Howitzer — Continued

15

16

17

18

19

20

21

22

23

Gunner releases turret lock assembly (22) and turns TRAVERSE CONTROL switch (23) to POWER or

MANUAL position as desired.

Driver removes M1A2 aiming posts and cleaning artillery staff sections and passes them to cannoneers

no. 2 and 3.

Assistant gunner checks functioning of elevation system (para 2–10.8).

Cannoneer no. 1 performs pre-fire checks on rammer and breech (para 2–12.4). Cannoneer no. 1

removes 3 foot or longer lanyard and vent cleaning tool from oddment tray.

NOTE

Unless otherwise directed, skip steps 19, 20, and 21 if ammunition vehicle is used.

Cannoneers no. 2 and 3 spread tarpaulins as directed by chief of section.

Cannoneers no. 2 and 3 unload and unpack fuze boxes. Cannoneer no. 2 gets fuze setters.

Cannoneers no. 2 and 3 and ammunition team chief (ATC) unload and place ammunition as directed by

chief of section.

Cannoneer no. 1 gets swab and bucket of water and fastens bucket to floor.

Cannoneer no. 1 then gets primers and places them in the primer belt.

2-157