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Old 01-22-2012, 06:45 AM
  #8  
Skittl1321
Senior Member
 
Join Date: Oct 2011
Location: Iowa
Posts: 816
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I oil my Bernina when it starts sounding clunky- about ever 4-5 bobbins. Then it purrs like a kitten.
Just a single drop on the back of the bobbin race. My dealer showed me where.
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