Bolt Torque Check Procedure - Cub Crafters CC11-100 Maintenance Manual

For these reasons, it is important to follow the maintenance schedule below:
(a) After First Flight – After the first flight, recheck the bolt torque. Refer to Bolt
Torque Check Procedure and Table 6.3.16.1.
(b) After First 25 Hours – After the first 25 hours, recheck the propeller bolt torque.
Refer to Bolt Torque Check Procedure and Table 6.3.16.1.
(c) Every 50 Hours – After the first 25-hour recheck, it is Mandatory that the
propeller bolt torque be rechecked every 50 hours. Refer to Bolt Torque Check
Procedure and Table 6.3.16.1.
(d) Environment Changes - Should the operating environment change significantly
in temperature and/or humidity for a long period of time, the propeller bolt torque
must be rechecked.
(e) When the propeller is not in use, place the propeller in a horizontal position and if
it is exposed to weather, cover it with a waterproof cover.
(f) Do not use the propeller as a tow-bar to move your aircraft.
(g) Protect your propeller from moisture and UV exposure by waxing with an
automotive type paste at least once a year. Keep the tip drain holes in metal
tipping clear.
(h) Avoid running the engine up in areas containing loose stones and gravel.
(i) Finish loss off the leading edge is a normal wear item, and is dependent on the
amount of operation in rain and grit.
(j) Touch up worn finish areas and scratches with spar varnish. Return the propeller
to the factory or approved repair station for total worn areas larger than 4x4" or
scratches deeper than 1/32". Inspect frequently for bruises, scars, or other
damage to wood and blade leading edge protection. Damage to the wood or
leading edge that is 1/16" deep or less without breaking the finish is acceptable.

(2) BOLT TORQUE CHECK PROCEDURE:

(a) Be certain that magneto switch is off, and that both magnetos are grounded.
Remove the spinner dome.
(b) Remove safety wire on propeller mounting bolts.
(c) With a calibrated torque wrench, check bolt torque by applying the torque in a
tightening direction until the bolt begins to turn. Check the torque limits and
actions given in Table 6.3.16.1.
6.3.16
Page: 6
CUB CRAFTERS, INC.
CC11-100 MAINTENANCE MANUAL
Manual number SC10000AMM
Date: 08/02/2010