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--272 Change 6 2--20 OPERATION IN UNUSUAL ENVIRONMENT/WEATHER 2--20.1 Driving in Ice and Snow Conditions The basic rules for driving during cold weather include all of the rules that apply under normal conditions. However, the necessity to adhere to these rules with the increased hazards of ice and snow is magnified. All drivers must be trained in proper winter driving weather operation as outlined below. 1 Never jam on brakes as this will cause the vehicle to skid and require more distance for stopping. The correct method for braking a vehicle on snow and ice is to release accelerator slowly and apply brakes with a feathering action. 2 Always adjust speed to road conditions and keep proper distance between vehicles (three to eleven times the distance may be required on snow and ice). 3 If the vehicle begins to slide, slow down carefully without applying brakes and pull over to the side of the road until the condition can be corrected. 2--20.2 Operation in Extreme Heat, Humidity, or Salty Conditions When operating vehicle in extreme heat, humidity, or salty conditions, observe the following. 1 Don’t park vehicle in the sun for long periods of time. 2 Do lubricate weapons more frequently because oil evaporates. 3 Do clean and lubricate the howitzer cannon bore and metal surfaces as often as needed. 4 Do apply light film of CLP (item 8, Appx D) on weapon and mount when not in use and keep covers in place. 2--20.3 Operation in Dusty/Sandy Areas When operating vehicle in dusty/sandy areas, observe the following. 1 Don’t spin tracks while operating. 2 Do park vehicle under shelter. If none is available, cover vehicle with tarpaulins. 3 Do keep all armaments lubricated and covered when not in use.