The blade on my Craftsman circular saw will not tighten down and consequently slips on the spindle. I've tried packing the bolt with a washer and it didn't help. Can't find anything online so this may not be a typical problem. Could it be as simple as replacing the spring washer? Any feedback would be appreciated.
Sorry if this is too simplistic, are all the pieces there?
Under normal operation, the blade should be gripped with enough force to drive it except when you dog the blade down hard into material and jam it from turning. Works kind of like the shearable key on a lawnmower, give to prevent sudden stoppage.