Propeller Owner's Manual
115N
INSTALLATION AND REMOVAL
61-00-15
Page 3-28
Rev. 24 Dec/20
WARNING:
FAILURE TO FOLLOW THESE INSTALLATION
INSTRUCTIONS MAY LEAD TO PROPELLER
DAMAGE, ENGINE DAMAGE, OR PROPELLER
FAILURE, WHICH MAY RESULT IN DEATH,
SERIOUS BODILY INJURY, AND/OR SUBSTANTIAL
PROPERTY DAMAGE. UNUSUAL OR ABNORMAL
VIBRATION DEMANDS IMMEDIATE INSPECTION
FOR IMPROPER PROPELLER INSTALLATION.
PROPELLER SEPARATION MAY OR MAY NOT BE
PROCEEDED BY VIBRATION.
6. Propeller Installation
CAUTION:
SOME STEEL HUB PROPELLERS
INCORPORATE A PHENOLIC SPACER
BETWEEN THE PROPELLER AND ENGINE-
MOUNTING FLANGE. WHEN INSTALLING AN
ALUMINUM HUB PROPELLER, THIS SPACER
IS TO BE DISCARDED. THE ALUMINUM
HUB PROPELLER MOUNTING O-RING IS
LOCATED ON THE INSIDE DIAMETER OF
THE PROPELLER HUB. THERE SHOULD NOT
BE AN O-RING ON THE ENGINE FLANGE
WHEN INSTALLING AN ALUMINUM HUB
PROPELLER.
A. Flange Description
(1) Compact propellers are manufactured with six basic hub
mounting flange designs. The flange type designators
are D, F, K, L, N, or R.
(2) The flange type used on a particular propeller installation
is indicated in the propeller model stamped on the hub.
For example, HC-C2Y
F
-4A indicates an “F” flange.
(3) Refer to Aluminum Hub Propeller Model Identification in
the Description and Operation Chapter of this manual for
description of each flange type. Sample flanges are also
shown in Figures 3-11 and 3-12.
