Propeller Owner's Manual
115N
INSTALLATION AND REMOVAL
61-00-15
Page 3-71
Rev. 24 Dec/20
10. Spinner Assembly Clearance Checks
(Rev. 2)
CAUTION:
CLEARANCE BETWEEN THE BULKHEAD
AND THE ENGINE COWLING MAY CHANGE
DURING AIRCRAFT OPERATION
A. Clearance Checks - Refer to Figure 3-20.
(1) The spinner bulkhead must be spaced between the hub
and the engine cowling to prevent contact between the
spinner assembly and the propeller blades throughout
the full range of blade travel.
(2) The spinner assembly and the hub clamping bolts must
not touch any of the following components/areas or
cause interference during propeller/engine operation:
(a) Engine cowling
(b) Any non-rotating part of the aircraft
(c) Ice protection system components
(wire harnesses, anti-ice tubes, etc.)
(d) Counterweights/mounting hardware
(3) For spinner domes with a bonded forward bulkhead,
make sure the flange on the forward bulkhead does not
bottom out on the flared radius of the cylinder.
(a) Using both hands, grasp the spinner dome in the
approximate location of the forward bulkhead and
apply lateral force (side-to-side).
1 If there is lateral movement: Refer to the
applicable Spinner Dome Installation section in
this chapter.
(4) If there is any spinner asssembly interference, refer
to the applicable section, “Metal/Composite Bulkhead
Spacing Adjustment” in this chapter.
