How do I get the Platter off my SP-15?

Feels like it's welded on. I've never had so much difficulty getting a platter off. Does it even come off? I'm frustrated and could use some assistance here. I've been messing with it quite a bit but I'm getting worried now I might be damaging something. I know the Spindle has a Morse Taper similar to what a lathe or a drill press might have, but it just doesn't seem to want to let go...HELP!!!