Cub Crafters CC18-180 Maintenance Manual page 307

(a) After First Flight – After the first flight, recheck the bolt torque. Refer to Bolt
Torque Check Procedure and Table 1.
(b) After First 25 Hours – After the first 25 hours, recheck the propeller bolt torque.
Refer to Bolt Torque Check Procedure and Table 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 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.
(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 1.
Improper torque values will be obtained by measuring the breaking torque in a loosening
direction. The torque should be checked in a tightening direction and adjusted as
Actual Torque
Below 200 in/lbs
Between 200-275 in/lbs Adjust Torque as per Installation
Between 275-325 in/lbs No Further Action Required
Above 325 in/lbs
Manual number TC10000AMM
Date: 07/18/12
CUB CRAFTERS, INC.
CC18-180 MAINTENANCE MANUAL
CAUTION
needed.
Required Action
Remove Propeller
Inspect hub for damage
Loosen and Torque as per Installation
Table 1 - Torque Values and Actions
60-00
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