Propeller Owner's Manual
175
MAINTENANCE PRACTICES
61-00-75
Page 6-23
Rev. 1
Jun/11
(
2
) Rotate the blades by hand to move the blades and
piston to low pitch.
NOTE:
Low pitch is reached when the piston ears
contact the self-locking nut on each rod, and
when distance "C" is zero. Refer to Figure
3-17.
(
3
) With the blade in a horizontal position, measure low
pitch blade angle.
(
4
) If the blade angle
requires adjustment,
have the low
pitch stop adjusted at an appropriately licensed
service
facility or at the Hartzell factory.
7. Propeller High Pitch Settings
A. High Pitch (Minimum RPM) Stop - Propeller Models
HC-8( )( )( )-1( )( ) AND HC-82(X,V)(F,L)-6( )( )( )
(1) The high pitch stop is set at the factory in accordance
with aircraft manufacturer's recommendations. These
stops are adjustable only by qualified personnel at an
appropriately licensed propeller service facility or the
Hartzell factory.
8. Feathering Pitch Stop Adjustment
A. Propeller Models HC-8( )( )( )-2( )( ) and HC-83(X,V)F-3( )( )
(1) The feathering pitch stop is set at the factory
in accordance with the aircraft manufacturer's
recommendations. This stop is adjustable only by
qualified personnel at an appropriately licensed propeller
service facility or the Hartzell factory.
9. Start Lock Adjustment
A. Propeller Models HC-8( )( )( )-2( )( ) and HC-83(X,V)F-3( )( )
(1) The start locks are set at the factory in accordance with
the aircraft manufacturer's recommendations. These
stops are adjustable only by qualified personnel at an
appropriately licensed propeller service facility or the
Hartzell factory.
10
. Anti-ice and De-ice Systems
A.
Refer to the Anti-ice and De-ice Systems chapter of this
manual for de-ice system maintenance information.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
