Thread: 401a bobbin chatter and tension issues
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Old 03-09-2018, 08:53 AM
  #7  
bkay
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Originally Posted by cashs_mom View Post
This won't help you much at this point, but I was told to always have 2 bobbin cases. One to leave alone and one to adjust. I've done that with my Bernina.

Edit: I've never had to adjust by bobbin tension for using a twin needle. Why were you adjusting bobbin tension for that?
Patrice, the 401 (403, 501 and 503) have drop in bobbins, so the bobbin case is seldom removed or adjusted.

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