Reply to "Lionedrive coupling slipping question?"

I've probably handled 60-70 Liondrive repairs, three (maybe four) had the same issue, the nub was loose on the motor.  First one I put in a new motor, then I ran across one with no stock at Lionel, then I decided to try the Loctite.  Let's say three of 70, that's still about 4% of the repairs.  I realize this is only a sample of one, but that's a pattern to me.