Hi all- I'm a new GK21 owner and I'm trying to get my machine set up. I can't tell how I'm supposed to remove the spindle from the roll engraving attachment. It was in position when I bought the machine, and it appears that the pulley has to come off to free it, but I don't want to start cranking on things and break something expensive. I don't see in the manual anywhere how to set up the roll engraver, so that's no help (it came with the newer, boxier style manual while my machine is the older version). Any help?