For One Piece Rear Spinner Bulkhead Installation:
Step 2:
Note the factory position of the spinner rear bulkhead in the
spinner dome in relation to the blade cutouts to determine its
required position on the propeller hub. The spinner and spinner rear
bulkhead have been number coordinated to match the blade cutout
openings. Using the supplied AN3 bolts and nuts install the spinner
rear bulkhead to the spinner mounting plates. The supplied flat
washers are to be installed on the fiberglass side. The bulkhead is
to be installed on the aft side of the mounting plates. (The 14”
aerobatic spinner rear bulkheads are an exception; it is to be
installed on the forward side of the mounting plates. A slot is
provided in the bulkhead so it can be slipped over the mounting
plates into its forward position.) Tighten the bulkhead mounting
hardware.
Step 3
: After lightly lubricating the O-Ring with clean oil or O-Ring
lube, carefully install the propeller on the engine crankshaft by
tightening the (6) propeller bolts.
Warning: To avoid severe damage to the hub, when tightening
the propeller bolts insure that the face of the prop hub is kept
parallel with the face of the flywheel. In most cases this will
require tightening the propeller bolts a little at a time in an
alternating pattern.
Step 4
: Torque and safety wire the propeller hub bolts. Refer to data
sheet for torque (dry, non-lubricated) values (65 ft-lbs for ½”
hardware or 47 ft-lbs for 7/16” hardware). Safety wire the prop bolts
in pairs with 0.32” stainless safety wire after installation.
** Installation with a one piece rear bulkhead is complete. Proceed to
Section 4.2 **
For Two Piece Rear Bulkhead Installation:
Step 5
: Remove the (2) spinner installation plates. Save them for
future use.
Step 6
: Note the factory position of the spinner rear bulkhead in the
spinner dome in relation to the blade cutouts to determine its
required position on the propeller hub. The spinner and spinner rear
bulkhead have been number coordinated to match the blade cutout
openings. Using the supplied AN3 bolts and nuts install the spinner
rear bulkhead to the spinner mounting plates. The supplied flat
washers are to be installed on the fiberglass side. The bulkhead is
to be installed on the aft side of the mounting plates. Tighten the
bulkhead mounting hardware.
4-3
