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What should the bobbin tension on crownpoint 645F?

What should the bobbin tension be for a 2.5 stitch length? Can anyone help with this? Thanks

Helen Hibbert
December 2013
bobbin tension stay same no matter the stitch lenght. thread the bobbincase as normal and use pull scale to get tension of approx 11 grams,after that loosen or tension as needed to get proper tension

johan
December 2013

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