INSTALLATION AND REMOVAL
61-00-75
Propeller Owner’s Manual
175
Page 3-90
Rev. 1 Jun/11
WARNING 3
: FOR SAFETY REASONS, THE
PROPELLER MUST BE PUT IN FEATHER
POSITION BEFORE IT IS REMOVED
FROM THE AIRCRAFT.
(3) Routine propeller engine shutdown will engage the start
lock units, preventing the propeller from feathering. For
purposes of propeller removal, the propeller should
be put in feather position during engine shutdown. If
this was not accomplished, then the propeller may be
feathered as follows:
CAUTION
:
DO NOT PUT THE BLADE PADDLE
IN THE AREA OF THE DE-ICE BOOT
WHEN APPLYING TORQUE TO A
BLADE ASSEMBLY. PUT THE BLADE
PADDLE IN THE THICKEST AREA OF
THE BLADE, JUST OUTBOARD OF
THE DE-ICE BOOT. USE ONE BLADE
PADDLE FOR EACH BLADE.
(a) Rotate the blades simultaneously to a slightly lower
pitch to disengage the start lock plates from the start
lock units.
(b) Retract the start lock pins and hold them in place
with a heavy wire inserted through the hole of each
start lock housing.
(c) Slowly and carefully permit the blades to rotate to
high/feather pitch.
(4) Remove the safety wire on the propeller mounting bolts.
WARNING
:
MAKE SURE THE SLING IS RATED UP TO
800 POUNDS (362.99 KG.) TO SUPPORT
THE WEIGHT OF THE PROPELLER
ASSEMBLY DURING REMOVAL.
(5) Support the propeller assembly with a sling.
NOTE 1
: To permit rotation of the propeller for ease of
bolt removal, supporting the propeller with a
sling may be delayed until all but two mounting
nuts and washers have been removed.
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
