Thread: 6600 tune-up gone bad
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Old 03-06-2013, 01:01 PM
  #8  
PaperPrincess
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Join Date: Dec 2010
Location: Michigan
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If you are getting dots of bobbin thread showing on the top, your bobbin tension is too loose. Problems on the top, issues with the bobbin. Problems on the back of the sewn item indicate issues with the top thread.
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