Hello Den,
The annoying part is that the winder is so easy to fix, the problem is getting the body apart to get to it, if you can undo the screws on the back of the machine and try and feel for the plastic clips that just lock the body together you can slide a thin knife in to prise the body apart, worst design ever was to make a two piece body machine.
Ken
drivewithken@blueyonder.co.uk, October 2008