Oil Pressure Regulator - Removal, Installation, Testing and Adjustment - Continued
ENGINE/ - Continued
Oil pressure limits are based on an oil
inlet temperature of 180° F-225°F
*For operation above
During cold weather operations, 150
psig engine oil pressure is permitted
following engine start. When the
130 psig limit is exceeded, operate
engine at idle RPM until normal en-
gine oil pressure is obtained. When
engine oil pressure is within normal
limits, engine may be operated within
full range of temperature limits (-54°C
to 107°C) without regard to engine
oil temperature markings.
*For test cell only.
Any adjustment made to the oil
pressure regulator should be verified
by a calibrated direct-reading pressure
gage connected at the oil pressure sens-
ing port on the front of the gearbox.
Operate at idle until within
Reduce power to maintain
a. Remove the lockwire
from the pressure regulator.
b. Using a wrench, turn
guide clockwise to in-
crease pressure; counter-
clockwise to decrease.
Adjust the regulator until
oil pressure is within
limits of preceding item
4. One turn will change
oil pressure approximately