Hartzell HC-E3YR-7 Owner's Manual page 126

(m) If the engine RPM reaches maximum before
reaching maximum power, then the governor was
activated to increase blade angle to stop the RPM
increase and will have dropped the oil pressure
shown on the cockpit mounted oil pressure gauge to
a Position 1 location or lower. Refer to Figure 3-16.
1
2
(n) If the engine RPM does not reach the maximum
RPM permitted by the governor, then move the pilot
control to push the plunger farther into the pressure
control unit and slowly increase oil pressure above
the previously selected oil pressure until the
resultant increase of RPM just reaches maximum
RPM.
1
2
3
4
5
INSTALLATION AND REMOVAL
Propeller Owner's Manual
This is not a true indication of the oil pressure
permitted by the pressure control unit.
Repeat step 4.D.(3)(l) and move the pilot control
in the cockpit to push the plunger into the
pressure control unit and obtain an oil pressure
that is increased 10 PSI from the previous effort.
This is the Position 4 oil pressure. Refer to
Figure 3-16.
Move the pilot control to obtain an additional
10 to 15 PSI increase.
This is Position 3 oil pressure value. Refer to
Figure 3-16.
a Record this pressure value in the propeller
logbook.
Lock the pilot control in place to permit later
examination of the pressure control unit plunger
location after the engine is shut down.
Shut down the engine.
136
61-00-36
Page 3-50
Rev. 2 Feb/17