Propeller Owner's Manual
115N
INSTALLATION AND REMOVAL
61-00-15
Page 3-85
Rev. 24 Dec/20
F. Removal of “K” and “R” Flange Propellers
(1) Remove the spinner dome in accordance with the
Spinner Removal procedures in this chapter.
(2) If the propeller is equipped with an ice protection system
that uses components supplied by Hartzell
Propeller Inc., applicable instructions and technical
information can be found in Hartzell Propeller Inc. Ice
Protection System Manual 180 (30-61-80).
(3) Propeller ice protection system components not
supplied by Hartzell Propeller Inc. are controlled by the
applicable TC or STC holder’s Instructions for Continued
Airworthiness (ICA).
(4) If installed, cut and remove the safety wire or safety
cable on the propeller mounting stud nuts.
WARNING:
MAKE SURE THE SLING IS RATED UP
TO 800 LBS. (363 KG) TO SUPPORT THE
WEIGHT OF THE PROPELLER ASSEMBLY
DURING REMOVAL.
(5) Support the propeller assembly with a sling.
(6) If the propeller will be reinstalled and it has been
dynamically balanced, make an identifying mark (with a
felt-tipped pen only) on the propeller hub and a matching
mark on the engine flange to make sure of correct
positioning of the propeller during re-installation.
NOTE: This will prevent dynamic imbalance.
CAUTION:
DISCARD THE PROPELLER MOUNTING
STUDS, NUTS, AND WASHERS IF THEY
ARE DAMAGED OR CORRODED, OR
WHEN THE PROPELLER IS REMOVED
FOR OVERHAUL.
(7) Unscrew the six 1/2 inch mounting studs from the engine
bushings.
(a) If the propeller is removed between overhaul
intervals, mounting studs, nuts and washers may be
reused if they are not damaged or corroded.
