I had 2 grubscrews holding my pulley on a coronet 2 - when I took them out, I found that the puley was firmly stuck on the spindle, so some wooden wedges and a hammer got it to move. Afterwards, before putting it back, cleaning the spindle helped as there was a build up of dirt/oil/debris on the spindle on either side of the pulley location --- good luck and persevere with it -- Bruce