TM 10-3930-641-20
(Sheet 1 of 1)
ENGINE LUBRICATION SYSTEM DESCRIPTION
OIL COOLER BYPASS VALVE. Provides immediate lubrication
5.
Engine lubrication system consists ofl
to the engine when the engine is cold. The valve also provides for
continuous lubrication if the oil cooler has a restriction in it.
Oil pan
1.
OIL FILTER BYPASS VALVE. Provides immediate lubrication
6.
Oil pump
2.
to the engine, for a few seconds, when the engine is started cold.
The valve also provides the engine with continuous lubrication
Oil cooler
3.
when the filters are plugged.
Oil filters
4.
7.
OIL LINES AND PASSAGES. Provide the lubrication system
with a means of oil flow.
Oil cooler bypass valve
5.
Oil filter bypass valve
6.
Oil lines and passages
7.
OIL PAN. Seals the bottom of the engine and functions as a
1.
reservoir for storing engine lubricating oil. A plug is provided in
the bottom for draining engine oil.
OIL PUMP. A gear-type driven by a gear on the engine crank-
2.
shaft. The pump's function is to supply the engine lubrication
system with oil flow. Oil is pulled from the oil pan and sent to
the oil cooler.
OIL COOLER. Reduces the temperature of the engine lubri-
3.
cating oil by transferring the heat of the oil to the engine cooling
system.
OIL FILTERS. Remove foreign particles from the engine lubri-
4.
eating oil.
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