Crankcase pully removal 1.5L SOHC

I've started to replace the timing belt on a 2001 Accent 1.5 L SOHC engine.

I cannot remove the crank shaft outer pully.

Is it pressed on (needing the use a a puller)? or should the nut be removed?

If it is the nut that needs to be removed, is it a left hand or right hand thread? Any help appreciated. engbuster350