D O ’ S A N D D O N ' T S F ORO P E R A T I O N I N E X T R E ME1.2.3.4.5.6.7.8.Do be alert for the effects of coldon the carrier.Do install air inlet and exhaustgrill covers and adjust forconditions.Do start engine coolant heater assoon as you stop for more than afew hours.Do read FM 21-306 to learnabout the methods and specialhazards of driving on snow, ice,and unusual terrrain.Do park in shelter whenever youcan. If there’s no shelter, park sothe carrier doesn’t face the wind.Do, if you can’t park in shelter,put a footing of planks or brushunder the tracks so they won’tget frozen in. Clean off snow, ice,or mud as soon as you can.Do drain fuel filters as soon asyou can. Close valves when cleanfuel appears.Do fill the fuel tank as soon asyou can. Water collects in anempty tank when it cools down.Ice will block fuel flow.TM 9-2350-261-10 C O LDDO’S:9.10.11.Do keep the carrier covered asmuch as you can. Usetarpaulins or anything availableto protect the carrier. Covermachine gun when you’re notusing it. Keep gun clean andlightly lubed.Do remove drain plugs whenwater collects in hull.Do your AFTER operationpreventive maintenance checksand services (PMCS) .DON’TS:1.2.9.4.5.Don’t operate lights or electricalequipment for very long whencoolant heater is ON.Don’t run engine while coolantheater is operating.Don’t let the ends of tarpaulinstouch the ground. They couldfreeze in place.Don’t touch external metalsurfaces with bare hands.Hands could freeze to the metalsurface.Don’t leave the brakes lockedwhen you stop. If water ispresent, it could freeze them inthe locked position.GO TO NEXT PAGE2-231
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