TM 10-4320-325-14
CAUTION
Change engine oil after initial 20 hours of operation or at end of first month.
Thereafter, every three months or 100 hours operation.
(3) If overheating occurs in extreme conditions, shut down engine immediately. If possible protect pump
assembly from direct heat or the sun.
(4) Check the air deaner restriction indicator frequently. If the red band appears in window of restriction
indicator, change air deaner element.
c. Operation in High Altitudes.
(1) Peak efficiency of the engine is reduced at higher altitudes. Be sure engine is operating at peak efficiency.
(2) Observe normal operation.
d. Operation in Sandy or DustyAreas.
(1) Monitor the air cleaner intake restriction more closely. If the air deaner restriction indicator shows its red
band, replace air deaner element.
(2) Make sure oil level is maintained at the top mark.
CAUTION
Change engine oil after initial 20 hours of operation or at end of first month.
Thereafter, change every three months or after 100 hours of operation.
(3) During the handling of fuel, PMCS, and refueling, be sure that sand or dust is not allowed to enter fuel or
lubrication system.
(4) If centrifugal pump unit is not in use and suction and/or discharge hoses are not installed, be sure that
suction and discharge sides are covered.
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