Reply by Mickey Cassiba

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Posted on Delta 34-670 motor problems

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Mickey Cassiba

312 posts in 3152 days

#1 posted 01-25-2012 01:51 PM

Uh John…the -670 is a direct drive saw…how did you run it “with the belts on”? There is very little you can do to fix this type of motor, beyond brushes and bearings. it sounds as though the commutator(the copper piece the brushes rub against is failed). You can try cleaning it up with an abrasive pencil eraser, but if the gaps(Black lines) are bridged with melted copper, it’s toast. This would call for a replacement of the armature, which if available would be pretty spendy, not too mention a major PITA. You may have found yourself a nice door stop or your new router table…:P here’s a link to the parts list:

-- One of these hammers oughta fix that...

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