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--120 Change 6 2--10 OPERATING PROCEDURES — CONTINUED 2--10.6 Operating Hull and Cab Doors and Hatches — Continued d. Hull Rear Door NOTE • Some M109A3 vehicles have two hull rear doors. • Hold--open latch is sufficient to hold hull rear door open, but when moving vehicle or firing howitzer with hull rear door open, place hold-open rod in tow lug and insert pin to hold in place. • If hold--open latch fails to hold rear door open, notify Unit Maintenance. 1 To open hull rear door (16), lift door handle (17). Secure hull rear door in open position with hold-open latch (18) and hold-open rod (19). Secure hold-open rod in tow lug (20) with pin (21). 2 To close hull rear door (16), remove pin (21) from hold-open rod (19) and tow lug (20). Close hull rear door and pull down on door handle (17). Place hold-open rod in stowed position and secure with pin.