TM 9-2320-386-10 2-87 2-34. OPERATION IN EXTREME HEAT (Contd) (1) At end of daily operation, use low air pressure to remove all sand from vehicle engine compartment, and areas around brakes, drums, and spring seats. CAUTION Do not allow dust or sand to enter fuel tank when filling. Doing this may result in damage to fuel system. (2) Fill fuel tank (TM 9-2320-361-10). Tighten filler cap securely after filling. (3) Perform “after operation” PMCS (table 2-2). (4) Reinflate tires to proper operating pressure, if deflated (para. 2-19). 2-35. OPERATION IN DUSTY OR SANDY AREAS a. General. Vehicles operating in dusty or sandy areas require frequent servic- ing of the air cleaner, cooling system, and lubrication points. Operators should be alert to engine overheating. If engine overheating occurs, refer to para. 2-34b, step 5. b. Before Operation. Perform steps in para. 2-34b. c. Driving Vehicle. (1) Start engine (para. 2-12). NOTE When driving on hard-baked sand, try not to break through the crust. A roadbed of canvas or planking should be set down for short distances. (2) Place vehicle in motion (para. 2-15). (3) If vehicle is to be operated in extreme heat, perform steps in para. 2-34c. CAUTION Do not attempt to jump vehicle out of deep sand with quick trans- mission gear changes. Doing this may result in damage to equip- ment. (4) If vehicle becomes stuck in deep sand, use second vehicle with winch for recovery operation (para. 2-18). d. Stopping or Parking. (1) Park vehicle in a sheltered area out of blowing dust or sand whenever possible. If sheltered area is not available, park so vehicle does not face into wind. (2) If sheltered area is not available, cover vehicle with paulin. When entire vehicle cannot be covered, protect windows, cab, and engine compartment with paulin to prevent entry of sand or dust. (3) Stop vehicle and engine (para. 2-16).