Having problems with Craftsman Tablesaw

O.k. Its been a few months since I've chimed in but I reformatted and never put the newsgroups back on. Sorry! Anyway my up until now trusty old 10" Craftsman tablesaw has decided to develop a problem. It seems that the arbor in which the blade and belt pully are attached to seems to have come apart? Is this possible? While making my cuts to finish the dresser to match the desk I completed last December for my little girl the blade will suddenly seem to lose power. I troubleshot the symptoms and noticed that the shaft(arbor) would run out on the belt side after making no certain amount of cuts. I pushed the pully and shaft back in and all was well for a while then back under again for the same thing! Well last night I was trying to make some use of my dado blade for the drawer bottoms and the rabbet joints and was only able to get halfway through a 15" cut before the noise came and the power faded on the blade. I am trying to figure out if there is a quick fix for this or if I need to replace the arbor or exactly what I can do to make the saw usuable. I already know you all want to blast me for having the Crapsman in the first place but really what can I do? Thanks, Kevin