If you have pushed the winder over and it is not turning either the winder rubber has worn down one side, or there is residue on the winder rubber, or the bwinder has seized through lack of oil which is quite common, with the winder in the off position see if you can spin it by hand, if you can't then chances are it has seized, put some WD40 oil on the top of the spindle and leave it overnight, then put an electric drill over the top of the spindle and switch on slowly, that usually works.