My dewalt saw motor had excessive brush arcing, I checked commutator for carbon buildup between segments and checked for shorts. After reassembling I used a brush seating commutator stone. After using the brush seating stone the motor won't run??
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It may start if the shaft is turned to a certain position, but then not run will. The seating operation might have left something shorting the commutator.
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Hi Bill, I thought maybe the commutator had a dead spot also. But unfortunetly rotating the shaft by hand didn't help. I even disassembled the motor again and cleaned commutator slots out again and blew out any of the debris from the commutator stone seating the brushes in. This one has me scratching my head.
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