TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9-2350-311-10 2–10 OPERATING PROCEDURES — CONTINUED 2-10.4 Driving — Continued b. Backing the Howitzer When backing the howitzer, two personnel must guide the driver to prevent accidental injury. Both guides stand to the left, a safe distance from the vehicle. Front left guide must be visible to the driver. 1 To prepare for backing the howitzer, driver (D) is seated at controls, looking to the left of the vehicle. Cannoneer no. 2 (No 2) stands to the left and front of the vehicle, visible to both the driver and chief of section (CS). The chief of section stands to the left and rear of the vehicle, visible to cannoneer no. 2. 2 Chief of section signals cannoneer no. 2 on direction and distances for safe back up. Cannoneer no. 2 relays signals to the driver. 2-109