Propeller Owner's Manual
115N
INSTALLATION AND REMOVAL
61-00-15
Page 3-51
Rev. 24 Dec/20
8. One-Piece Spinner Dome Installation
(Rev. 1)
CAUTION 1: TO PREVENT DAMAGE TO THE BLADE AND
BLADE PAINT, WRAP THE BLADE SHANKS IN
SEVERAL LAYERS OF MASKING OR DUCT
TAPE BEFORE INSTALLING THE SPINNER
DOME. REMOVE THE TAPE AFTER THE
SPINNER IS INSTALLED.
CAUTION 2: THE SPINNER DOME WILL WOBBLE IF NOT
ALIGNED PROPERLY. THIS MAY AFFECT THE
DYNAMIC BALANCE OF THE PROPELLER.
NOTE 1: The following instructions relate to Hartzell Propeller Inc.
spinners only. In some cases, the airframe manufacturer
produced the spinner assembly. If so, refer to the
airframe manufacturer’s manual for spinner installation
instructions.
NOTE 2: There are three types of one-piece spinner domes used
on Hartzell Propeller Inc. Compact-series propellers:
• Spinner Dome without a Forward Bulkhead
• Spinner Dome with a Bonded Forward Bulkhead
• Spinner Dome with a Removable Forward Bulkhead
NOTE 3: A forward bulkhead is an internal support that encircles
the propeller cylinder.
NOTE 4: Refer to the applicable installation instructions for the
type of dome/forward bulkhead being installed.
NOTE 5: The B-3845-8 screws supplied with metal spinner
assemblies are 0.500 inch (12.70 mm) in length. If
correct thread engagement cannot be achieved when
installing the spinner dome, B-3845-9 screws may be
used. The B-3845-9 screws are 0.562 inch (14.27 mm)
in length.
