I'm having an issue with my line drive unit where the "basket" around the drum begins to rub against the top of the drum (swivel top). This in turn causes enough friction to prevent furling the headsail using the line. The basket appears to be held in position with a screw that tightens a friction collar, however even loosening the screw the basket is exceedingly difficult to move. Even when I'm able to get it inched low enough to prevent friction, after using the headsail once or twice it begins to rub again. Does anyone here know how to fix this issue?