Question about PfaFF Creative 7570
I have a Pfaff 7570. The thread on the underside is loopy
& loose. Do I adjust the bobbin screw or the thread tension? Thank you
Thread tension. Beware of adjusting the bobbin screw. Pfaffs maintain their tensions just fine without adjusting the bobbin tension, unless you're using some crazy thick or fine thread. If you must change your bobbin tension, you would be well-advised to buy an extra bobbin case, because re-calibrating your tensions after changing them can be less than fun.
Increase your top tension, and your looping should cease. I normally keep my tension around 4.5. Also make sure you're using a good quality thread, and that there's nothing in the upper tension assemblies. Sometimes a tiny piece of debris can keep the top tension from applying enough tension, so turning the machine off and blowing some canned air in there can help as well.
Posted on Mar 11, 2009
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Posted on Jan 02, 2017
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