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Singer 503A Parts List

Singer sewing machine owner's manual.
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  • Donna Campbell Apr 01, 2017 09:37:
    To Mackie, had the same problem. Mine probably sat longer than that. Just force it to move and remove top of machine and clean real good. The oil got thick and that is the reason it won't move. I had to clean and oil it a lot at first but now runs great.
  • Mackie Mar 05, 2017 04:17:
    My machine has not been used in a few years. Trying to load bobbin and cannot get the round handle to turn when holding the bigger round handle