While you wait for answers, we may have found some information which could help you.
Click here for Model Craftsman Replacei can not get the saw blade screw off my circular saw (Craftsman) I think ?
Need switch...part #3-706796-01 (old Sear's part #)?
7" CRAFTSMAN CIRCULAR SAW WILL RUN?
Need to replace power cord on circular saw?
Need brushes for a craftsman circular saw?
How do I remove a blade from an old saw?