One of the things that I see WAY over used here on the forum is the use of thread locker. Now don't get me wrong, it's great to use it, but it has to be used in the correct manner. When you are putting thread locker on the bolts that are going into the feathering shaft, the last thing you want is for that thread locker to squeeze out of that sealed tube and be forced into the thrust bearing thus locking it up.

Have a watch and hope it helps you out!