If you have your machine book it should explain it . I have 2 Brothers also that I piece with & the book instructions aren't the best but they aren't too bad at explaining things.
uote=libertykm]Ok....here is a dumb question. I'm a new quilter. How do you know which is the top thread tension. I have a Brother and it is set at 3.5 and 2.5. Is this wrong or right. Help.[/quote]