dodges

Can't post a picture....the parts diagram that I saw on line describes it as a pin...but the blow-up picture isn't much help...just looks like a pin.  I am not sure what a roll pin is...can I just use a punch  to punch it out?  If I can, I still might have to heat it up (carefully, because it's a plactic steering wheel!) because it still may be frozen on.  I really do appreciate your help...

I have an old Ariens lawn tractor that I am trying to refurbish.  I need to get the steering wheel off so I can remove the cowling to get at some levers that are frozen.  Does anyone know how to get the steering wheel off?  There appears to be some pins holding it on the shaft.  Can I just knock them out with a nail set or something similar?  I am soaking them at present since there appears to be a lot of rust in there.  Thank you...