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 376 of 775
TM 9-2350-311-10
2–18 PREPARATION FOR MOVEMENT (*MARCH ORDER) — CONTINUED
Procedure — Continued
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Gunner assists driver in locking cannon tube in travel position, turns CAB POWER switch to OFF, locks
turret lock, and closes left cab side door.
To prevent accidental injury, two personnel must guide driver when backing up (para2–10.4).
Chief of section along with the assistance of the cannoneer no. 2 directs the driver to back against
spades. When driver has backed against spades, gunner steps on left spade pedal, and assistant
gunner steps on right spade pedal. The chief of section directs the driver to pull forward enough to
permit the spades to be lifted into travel position.
Cannoneer no. 2 closes rear hull door.
Cannoneer no. 1 and 3 lift left spade into travel position, and cannoneer no. 1 replaces left spade pin
assembly and secures left spade strut.
The ammunition team chief and cannoneer no. 2 lift right spade into travel position. Cannoneer no. 2
replaces right spade pin assembly, secures right strut, and opens rear hull door.
Cannoneer no. 1 checks left and right latches for complete engagement, secures left and right struts,
and checks left and right pin assemblies and struts for security.
Cannoneer no. 2 and 3 fold and place tarpaulins in stowage racks.
Cannoneer no. 3 secures M1A1 collimator and hands it to assistant gunner, who stores it and closes
right cab side door.
Assistant gunner verifies all section equipment is present and secure.
Entire section takes their post and cannoneer no. 1 closes rear hull door.
Chief of section verifies howitzer is prepared for traveling and reports “NUMBER (SO AND SO) IN
ORDER” or reports any defect section cannot correct without delay.
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