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TM 5-4320-308-13
2-5. OPERATION IN EXTREME HEAT
The engine of the pumping assembly is air cooled. Heat can be removed from an engine in three ways; engine exhaust,
engine oil, and the passage of air across and through cylinder cooling fins. Therefore, when operating in high ambient
temperatures, observe the following:
a.
With engine stopped, inspect frequently to be sure that cylinder cooling fins are clean and free of dirt that inhibits
cooling.
b.
With engine stopped, inspect frequently to be sure that blower ring is clean and free of dirt.
c.
With engine stopped, inspect frequently to be
sure that engine oil is to top mark on dipstick
(1). Add oil, if necessary, at oil filler cap (2) to
bring level up to top mark.
d.
Check the air cleaner restriction indicator (1). If
red band appears in window of restriction
indicator, change the air filter in the air cleaner
(2). Refer to paragraph 3-22.
2-13
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