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Old 08-21-2011, 10:22 AM
  #29  
JeanneZ
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Join Date: Dec 2010
Posts: 65
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2 suggestions. Clean out your bobbin case each time you refill it. Fabric dust/lint can create this problem.
Next make sure the machine is threaded correctly both the bobbin and upper thread. Either or both of these can cause this problem.
JeanneZ
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