Page 4-11
Rev. 1 Jun/11
TESTING AND TROUBLESHOOTING
61-00-75
Propeller Owner's Manual
175
I
.
Failure to Unfeather - HC-8( )( )( )-2( )( ) and -3( )( )
propeller models only:
(1) Check for proper function and rigging of the propeller
control linkage to the governor.
(2) Check governor function.
(3) Check for excessive oil leakage at the engine oil transfer
bearing.
(4) Propeller must be checked for misadjustment or internal
corrosion (usually in blade bearings or pitch change
mechanism) that results in excessive friction. This must
be accomplished at an appropriately licensed propeller
repair facility.
J
. Start Locks Fail to Engage on Shutdown - HC-8( )( )( )-2( )( )
and -3( )( ) propeller models only:
(1) Propeller was feathered before shutdown.
CAUTION:
DO NOT PLACE THE BLADE PADDLE
IN THE AREA OF THE DE-ICE BOOT
WHEN APPLYING TORQUE TO A
BLADE ASSEMBLY. PLACE THE
BLADE PADDLE IN THE THICKEST
AREA OF THE BLADE, JUST OUTSIDE
OF THE DE-ICE BOOT. USE ONE
BLADE PADDLE FOR EACH BLADE.
(a) Using the blade paddles, simultaneously rotate
the blades toward low pitch until the start lock pins
engage a clamp mounted stop plate.
(2) Shutdown occurred at high RPM with the propeller
control set for coarse blade angle or low RPM.
CAUTION:
DO NOT PLACE THE BLADE PADDLE
IN THE AREA OF THE DE-ICE BOOT
WHEN APPLYING TORQUE TO A
BLADE ASSEMBLY. PLACE THE
BLADE PADDLE IN THE THICKEST
AREA OF THE BLADE, JUST OUTSIDE
OF THE DE-ICE BOOT. USE ONE
BLADE PADDLE FOR EACH BLADE.
(a) Using the blade paddles, simultaneously rotate
the blades toward low pitch until the start lock pins
engage a clamp mounted stop plate.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
