Question about Bernina Bernette Deco 600
"Thanks But I have done that tuned the screw out and turned it in and it still does that the, screw seems to move it;s self,right now thescrew is turned all the way in."
Often the spring on the side of all bobbin cases ball up with lint, this causes the spring to flex and let the thread pass under without any tension. Pull the spring off and clean the side of the bobbin case and the underside of the spring, your spring may also be warn and need to be replaced...
Posted on Jan 02, 2009
Hi, loops on top are signs of a loose bottom tension. There can be a number of issues. First put in a new needle. The bobbin should be in turning clockwise. This is going to take a few tries before it starts looking right. Get a tiny screw driver. There is a small screw on the bobbincase that the bobbin sets in. You will need to turn that screw 1/4 of a turn at a time until the stitches tighten up and the problem disappears.
Or its possible your not getting the thread threaded through the bottom tension spring correctly.
Posted on Dec 20, 2008
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