There are a lot of ways people get the wheels off most ways do damage to the transaxle.
The way I do takes a little bit of work but you will not break anything.
Take the transaxle out and set it on two saw horses with the transaxle in between the two being held up by just the wheel take a block of 2x4 put it on the axle shaft and hit with a hammer.
Do not try and hammer the wheel off by hitting the back side. You could break the snap ring that holds the axle in place.
