Hartzell HC-82XF-1 Owner's Manual page 186

(b) HC-8( )( )( )-1( )( ), -2( )( ), and -3( )( ) propeller
models:
1
2
3
(3) Decrease in engine speed while increasing airspeed:
(a) HC-82(X,V)(F,L )-6( )( )( ) propeller models:
1
(b) HC-8( )( )( )-1( )( ), -2( )( ), and -3( )( ) propeller
models:
1
2
(4) Increase in engine speed while decreasing airspeed:
(a) HC-82(X,V)(F,L )-6( )( )( ) propeller models:
1
(b) HC-8( )( )( )-1( )( ), -2( )( ), and -3( )( ) propeller
models:
1
(5) Decrease in engine speed while decreasing airspeed:
(a) HC-82(X,V)(F,L )-6( )( )( ) propeller models:
1
2
TESTING AND TROUBLESHOOTING
Propeller Owner's Manual
Governor is not reducing oil volume in the
propeller.
Excessive friction in the blade bearings or the
pitch change mechanism
Excessive friction in the misalignment between
the guide collar and the piston rods
Governor pilot valve is stuck and is excessively
increasing oil volume.
Governor pilot valve is stuck and is excessively
decreasing oil volume.
Feathering command is engaged on the
propeller pitch control -2( )( ), and -3( )( )
propeller models only.
Governor pilot valve is stuck and is excessively
decreasing oil volume in the propeller.
Governor pilot valve is stuck and is excessively
increasing oil volume.
Governor is not reducing oil volume in the
propeller.
Excessive friction in the blade bearings or pitch
change mechanism
175
61-00-75
Rev. 1 Jun/11
Page 4-8