Tracy,
If you haven't done so as yet......
Remove the belt from the pulley. Some machines have two screws with either a slotted head or hex head to loosen from the shaft. There may also be a bolt/screw inside the pulley that threads into the end of the shaft.
If the pulley has not been removed in along time it may also be "seized" onto the shaft, be careful in removing if true.
Your manual should have a parts list. If so reconstruct how the pieces are put together, that might give you a clue as to how to remove.
I wasn't inferring that you were lazy, simply offering a suggestion that you may have not tried
ferg