TM 5-4320-306-10
2-12. OPERATION IN SANDY OR DUSTY AREAS (Continued)
CAUTION
Closely monitor air cleaner intake restriction indicator in sandy or dusty locations. At first sign of
restriction, change filter elements.
b. Frequently check the air cleaner restriction indicator. If red band appears in window of air cleaner restriction
indicator and no damage to system components is found, service the air cleaner and replace primary and secondary
elements as described in paragraph 3-8.
c. Frequently check oil to be sure it is not contaminated. Contact organizational maintenance if oil is
contaminated.
d. Cylinder cooling fins should be free of dirt.
e. Bottom roller should be free of dirt.
f. Lube oil cooler cooling fins should be free of dirt.
WARNING
Death or serious injury could occur if diesel fuel oil is not handled carefully. Use in a well-
ventilated area away from open flame, arcing equipment, ignition sources, heaters, or excessive
heat. Be certain that fuel lines and connections are secure. Do not inhale vapor. Do not overfill
fuel tank. Engines must be turned off and cooled before refueling. Use proper refueling
procedures and equipment to avoid spillage. Do not run engines near open fuel containers. DO
NOT SMOKE.
g. During fueling and PMCS, do not allow sand or dust to enter fuel or lubrication system.
h. Check that fuel tank filler cap is tight and gasket is not torn. Keep cap tight to prevent foreign matter from
entering the engine fuel tank.
i. Keep stores of fuel and oil tightly sealed to prevent contamination.
j. Close control panel cover whenever possible to limit damage to gage faces from blowing sand or grit.
k. When centrifugal pump unit is not in use and suction or discharge hoses are not installed, cover the suction
flange (intake) and check valve assembly body port (discharge).
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