Installation - Cub Crafters CC11-100 Maintenance Manual

the tip of the razor easily goes into the crack more than 1/16-inch then the
propeller must be returned to the factory for closer inspection.
Bolt Hole/Counterbore Elongation
The bolt holes and counterbores will naturally elongate since the wood will shrink
and expand differently with and against the grain. When inspecting the
counterbores, look for a ridge at .38-.75" deep in from the mounting hub face that
would indicate that the flange drive bushings were hitting against the side. If any
bolt hole elongation or ridge height inside the counterbore is more than 1/32",
then the propeller MUST be returned to the manufacturer for closer inspection,
and the attaching bolts MUST be replaced.
(d) Inspect the spinner aft bulkhead and engine flange for fretting. If the fretting is
severe and cannot be dressed out with emery cloth then the parts must be
replaced.
(e) Clean the flange face for reinstallation.

(5) INSTALLATION

The following instructions are a general guide. Defer to propeller manufacturers detailed
instructions as required.
(a) Thoroughly clean the surfaces of the crankshaft flange and pilot stub, the
rear/mounting face of the propeller, and the pilot bore. Carefully examine each
surface and especially examine the end of the crankshaft pilot stub. Even minor
nicks or burrs must be smoothed.
(b) MAKE SURE the propeller attaching bolts and the threads in the drive bushings
or retaining nuts are clean and dry.
(c) Be certain that the magneto switches are off and both magnetos are grounded.
(d) Place the spinner backing plate on the crankshaft flange ensuring the prop blade
orientation is correct.
(e) Position the propeller in the correct orientation. Tighten the bolts snug.
(f) BE SURE the spinner backing plate is positioned properly on the flange bushings
before you torque the bolts.
(g) Apply torque in several increments, working diagonally across the bolt circle until
reaching proper torque.
Over-tightening propeller attaching bolts cause the wood of the hub to crush, breaking
6.3.16
Page: 4
CUB CRAFTERS, INC.
CC11-100 MAINTENANCE MANUAL
CAUTION:
its seal, and slightly reducing drive-torque.
Manual number SC10000AMM
Date: 08/02/2010