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 211 of 775
TM 9-2350-311-10
2-10 OPERATING PROCEDURES - CONTINUED
2-10.5
Towing Operations - Continued
b. Towing a Disabled Vehicle
When hooking or unhooking towbar from a disabled vehicle, set parking brake or chock tracks of
disabled vehicle before hooking or unhooking towbar. If towed vehicle is not chocked, or parking
brake not set, disabled vehicle may move, causing injury or death to personnel and/or damage
to equipment.
When a disabled vehicle is being towed, vehicles must be rear to rear to prevent damage to
cannon of towed vehicle.
When towing, be sure to steer in a wide arc to avoid collision when turning.
1
Connect tow cables (8) or tow bar (9) to tow hooks of both vehicles.
2
Shift transmission shift control lever (10) of towed vehicle into N (neutral) position.
3
Push in manual control handle (11) to release parking brake of towed vehicle and signal observer.
c.
Towing Vehicle to Start Engine
When hooking or unhooking towbar from a disabled vehicle, set parking brake or chock
tracks of disabled vehicle before hooking or unhooking towbar. If towed vehicle is not
chocked, or parking brake not set, disabled vehicle may move, causing injury or death to
personnel and/or damage to equipment.
Towing vehicle to start engine should be done on straight, smooth surface. Failure to do this
may cause towed vehicle to lose control resulting in injury or death to personnel.
Use the following procedure only in case of emergency or as a last resort.
1
To start engine, traverse cab 180° to keep cannon tube from hitting the towing vehicle. Lower cannon
assembly to mechanical limit stops.
2
Connect tow bar (9) or tow cables (8).
Change 2
2-115
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