Trying to fix an air compressor

IMG_1517.JPGIMG_1512.JPGIMG_1516.JPG40965.gif

I am trying to fix one of my air compressors that I have laying around in the basement.  I have one motor that seems to work but the pulley is missing.  So I need to remove a pulley off a non-working motor and put it on a working motor.  I have never done this before but I did remove the nut thing on the side and I guess I need a puller pulley set?  I will try and purchase a set tomorrow from Harbor Freight.