My TS 55 has stopped collecting sawdust. It's throwing dust all over. The saw is hooked to a shop vac and there's plenty of suction from the hose, but there's almost no air movement by the blade. I took the blade cover off and there's no blockage anywhere. And when I turned on the shop vac with the cover still off it sucked in some residual dust. But put the cover back on and nothing.

The only thing that has changed is that I put a rip blade on. Haven't had the chance to switch blades back to see if it makes any difference but I don't see how the blade can make a difference.

Any guesses?

Thanks
Cliff