Removal of a pulley

[adam-aussie-vac]

Hey guys, me and a seller are chatting and we can’t figure out how to remove the pulley off the shaft, The seller think that there might be a thread on the shaft and a thread on the pulley, But I’m not really sure as it has a locking key in it, can you guys help us get the pulley off without damaging the shaft or the pulley?

 

[moparman]

I'm not sure, but does it lock like a lock screw? If not, maybe try to gently tap it with a hammer and a drift pin. Hope this kind of helps