Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
You are trying to get # 22 pulley of? See picture below.
Nut comes off pulley, the two bars or levers used on the pulley to lift it off the shaft, then check shaft for key, looks like it is a splined pulley, so will have no key, just drive the shaft out the bottom of the deck.
Use two crow bars or two shovels to pry up on the pulley, you may have to put nut back on loose, and tap on the shaft while prying.