Got watersplash in my wet tile saw and motor stopped working. Pulled old brushes and lots of carbon left on them but springs were rusted and no longer pressing on rotor. New brushes had NO rust on them and were nice and springy so I had high hopes they would work and I wouldn't have to buy a new motor. Installed brushes, held my breath, flipped the switch and...(scroll down to continue reading)
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They worked!