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tension - National/Cromwell machine

tension - National/Cromwell machine

Old 06-29-2016, 01:42 PM
  #1  
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Default tension - National/Cromwell machine

I was recently gifted with a Cromwell Machine in a beautiful table. I found out some information about it - it was made by national before 1950. My husband fixed all the electric parts. I figured out how to thread the machine, wound a bobbin and tried sewing on some charm squares. After some adjustments I think I have the top thread just about right, but I have loops on the bottom. I'm used to sewing on a Viking where I don't ever have to adjust or change the tension, so I'm at a loss here. Do I tighten the screw on the bobbin case? I've tightened it some, but if I go too tight, the thread won't slip into the groove. Any suggestions?
Thanks,
Susan in NE PA
cvdnurse is offline  
Old 06-29-2016, 08:05 PM
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Loops on the bottom usually means the top tension is too loose. Try turning the dial a little bit to see if that helps. https://www.youtube.com/watch?v=mWajfDxQQwo The video may help you understand how to adjust tension.
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