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 TM 9-2815-220-24
THEORY OF OPERATION
0004 00
TRANSMITTERS
Low Oil Pressure Warning Light Switch:
The low oil pressure warning light switch
(A) is located at the lower right side of the
crankshaft damper and oil filter housing.
The electrical contact points in this switch
close when the oil pressure in the main oil
gallery is below 11 2 psi. Completion of
the electrical circuit lights the low pressure
B
warning lamp on the vehicle instrument
panel.
C
Oil Temperature Transmitter:
The oil temperature gauge transmitter (B) is
located at the upper right side of the
crankshaft damper and oil filter housing
Engine Models 2CA & 2DA
A
above the oil pressure regulator valve.
High Oil Temperature Warning Light Switch
The high oil temperature warning light
switch (C) is located in the oil passage above
C
the oil pressure warning light switch in the
right side of the crankshaft damper and oil
filter housing. The warning light sending
switch thermostatically-controlled electrical
B
contact points close when oil temperatures in
the engine main oil passage reaches
245 5 F. Completion of the electrical
circuit lights the oil high temperature
warning lamp on the vehicle instrument
panel.
A
Engine Model 2DR
WP 0004 00-28
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