TM 9-2320-260-20
The power systems include those components that give all vehicles covered in this manual the power
to move. Each of these components will be described as part of the following subsystems:
a. Engine Oil System Operation (page 1-45).
b. Powertrain System Operation (page 1-46).
c. Fuel System Operation - Single Tank (page 1-48).
d. Fuel System Operation - Dual Tanks (page 1-60).
e. Air Intake System Operation (page 1-52).
f. Exhaust System Operation (page 1-53).
g. Cooling System Operation (page 1-54).
a. Engine Oil System Operation.
The engine oil system provides lubricating oil for internal engine parts. Major components of
the engine oil system are:
A OIL FILTERS - Filter oil of dirt and other foreign material to help ensure flow of
uncontaminated oil to engine.
B ENGINE OIL PAN Reservoir for engine oil.
C ENGINE OIL PAN DRAINPLUG - When removed, allows lubricating oil to be drained from
engine.
E OIL FILLER CAP - Covers engine oil fill opening.
F ENGINE OIL COOLER - Removes excess heat from engine oil as coolant circulates through
internal tubes of oil cooler.
G OIL DIPSTICK - Indicates engine oil level.
1-45
