Thread: Singer 403A - sewing slow - any suggestions to speed it up?
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Old 04-02-2012, 06:12 PM
  #8  
Sewing Joe
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Location: New Albany, Indiana
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You may possibly need to clean the commutator on the motor. I've cleaned a couple of Featherweight motors to get them up to speed, but haven't ever removed one from a 403 (or any other in the 400 range).
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