TM 3-4230-218-12&Pb.OperationinFreezingweather.WARNINGSIf clothing (including hand gear) becomes wet in cold enviroments,the operator should immediately change from wet clothing to dry pro-tective clothing.If this is not done, cold injury will occur.When operating equipment in cold environments, appropriate clothingshall(1)(2)(3)(4)(5)Avoidbe worn. Appropriate clothing includes the following:Wet weather parka (LIN N70110)Wet weather trousers (LIN N33752)Chemical Protective Suit (Overgarment - LIN U57960)Petroleum, Oil & Lubrication (POL) Handler’s Gloves (NSN 8415-01-150-6198 through 6201)M3 Winterization Kit (NSN 4240-00-066-0181) with the M24/25Protective Masks or the M4 Winterization Kit (NSN 4240-00-065-0319) with the M17 Series Protective Masks.contact with water as much as possible; stand upwind (if possi-ble) of water spray; use caution when connecting/disconnecting fit-tings; use caution when adjusting control panel.Equipment should be placed on a level surface with provision for waterrunoff. The operating area for the pump unit must remain as dry aspossible.To prevent injury to personnel, make sure pressure hoses are properlyconnected. A separated connection can also cause fluid to spread overa large area, and slipping hazards may occur.In cold weather, three operators are needed per system to preventsystem freeze-up and operator injury. The third operator willassist the other two operators to ensure necessaryoperating stepsare conducted in a timely manner.Extreme caution shall be used when wearingcontact with moving parts (belts, pulleys,CAUTIONloose clothing to preventetc).If uncertain about depth of natural water source, insert suction fil-ter in water until it is just below surface. Restrain in this posi-tion using the chain and float provided.Ingestion of foreign mattercan cause damage to the pump/heater assembly.(1) Make sure the pump/heater assembly is not clogged with ice. Removedrive side panel, and manually rotate water pump pulley. Reinstalldrive side panel and manually rotate water pump pulley. If pulleywill not rotate freely, perform thawing procedures (page 2-42.4).2-40Change 1
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