I have a Bosch CS20 circ saw. Last year it was recalled for a sticking blade guard. I never had a problem with mine but e-mailed Bosch anyway for the “fix-kit”. Yesterday we were cutting out some old subfloor and with the new spring installed, the guard stuck open.
Maybe I just need to clean it, but if you own this saw, be careful. Evidently the “fix” isnt.