While you wait for answers, we may have found some information which could help you.
Click here for Model Trigger SwitchNeed brushes for a craftsman circular saw?
Need switch...part #3-706796-01 (old Sear's part #)?
how to fix my model 31510961 craftsman saw switch?
How do I remove a blade from an old saw?
Why does my Craftsman Circular Saw turn backwards?
craftsman circular saw blade spins when load put on?