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TM 5-4320-305-10
2-10.
OPERATION IN RAINY OR HUMID CONDITIONS (Continued)
b.
Take special care to prevent rust and corrosion. Coat machined surfaces with oil. Contact organizational
maintenance to remove any rust or corrosion, and cover the exposed surfaces with paint.
2-11.
OPERATION IN HIGH ALTITUDES
The centrifugal pump unit will operate normally at elevations up to 9000 feet (2743.2 m) above sea level. Above 9000
feet (2743.2 m), the operating efficiency of the engine is reduced. Mike sure that engine is operating at peak efficiency.
2-12.
OPERATION IN SANDY OR DUSTY AREAS
The engine cover of the pump unit is designed to protect the engine during periods of blowing sand. When operating the
pump unit in this type of environment, observe the following precautions.
a.
Protect the unit from blowing sand and dust as much as possible.
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.
2-81
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