TM 10-3930-671 -10 c. Operation In Extreme Dust or Sand. NOTE The  truck  normally  operates  in  non-dusty  conditions  and  PMCS  instructions  are  designed  to handle  these  conditions.    However,  in  deserts,  dust  conditions  are  more  extreme  and  certain checks and services must be made more often than normal. (1)   Check air filter restriction indicator more often than normal to ensure air cleaner is not becoming clogged. (2)   Watch all gauges in instrument panel more closely to ensure truck is not affected by dusty conditions. (3)   Park truck so it does not face into wind. CAUTION Blowing  dust  and  sand  can  scratch  glass  surface.    When  the  truck  is  not  being  operated,  glass surfaces must be covered for protection. (4) Cover instrument panel, vacuum gauge, air restriction indicator, hydraulic fuel oil level indicator, fuel tank fill cap, and spotlights when truck is parked for extended periods of time in extremely dusty conditions. (5) Cover open space in fuel tank fill hole when adding fuel to tank. 2-8.  NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) DECONTAMINATION PROCEDURES. a. If attack is known or suspected, mask at once and continue mission. b. Brush fallout from skin, clothing, and equipment with available brushes and rags before going inside.  Wash skin and have a radiation check made as soon as tactical situation permits. c. Do not unmask until told to do so. d. Detailed DECON procedures can be found in FM 3-3, FM 34, and FM 3-5. 2-9.  SHIPMENT INSTRUCTIONS. a. Preparing For Shipment.  Refer to TB 9-2300-281-35 for procedures covering preservation of equipment for shipment. General procedures for shipment are found in FM 55-15.  Specific information may be found in TM 55-2200-001-12 for rail transport and TB 55-45 for air transport. b. Administrative Storage.  Refer to TM 743-200-1 for instructions covering administrative storage of equipment. c. Weight Classification.  The weight classification of the truck is 4000 lb.  (1814.4 kg). 2-13 (2-14 blank)