PTO shaft

[benkapitanec]

I've been running a roller pump off my PTO for a sprayer that I have. The pump went on the spindle just fine, the problem is....I can't get the pump off now. It appears to be seized up on the shaft. Pulling back on the release sleeve and just pulling it off is not working. I've tried to hammer it off but there is a lack of room to really wack it a couple of times, plus I don't want to mess up the PTO shaft. The part of the pump that slips on to the PTO shaft is aluminum. My next step is to get a bearing puller on to it. Any ideas? Has this happened to anyone before??

Thanks
Ben