Question about Sewing Machines
Suggest you do rethreading ,then test the stitches on straight stitch. If top stitches is loose you have to reduce the upper thread tension, if the bottom stitches is loose you have to increase the upper thread tension. Adjust accordingly till you can get a perfect straight stitch. If okay then you can continue your embroidery work.
Posted on Nov 01, 2013
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Posted on Jan 02, 2017
SOURCE: thread or bobbin tension
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
Rule of thumb.. Loops on the bottom, problem on the top. Loops on the top, problems on the bottom.
Set your upper tension at 4, and rethread the machine from the top. Just before you thread the needle, but the presser foot down. If the thread pulls right thru easily, then the thread is not thru the tension wheel right. Because, if you can't pull the thread thru with the presser foot down, you have it threaded right.
Posted on Apr 25, 2009
Make sure your are lowering the pressure foot first before you start sewing. With the free motion foot, you still have to lower the pressure foot, this allows tension to be put on the top thread and allows the foot to work properly (when the needle goes down so should the foot and when the needle comes up it should lift the foot up.)
Also make sure your tensions are in a middle setting and that you are threading the machine with the pressure foot up.
The way to insure you will not get your problem is with the foot up, you should be able to pull the thread easily right before the eye of the needle and when you put the foot down you should then feel a fair bit of tension on the top thread.
hope that helps :)
Posted on Jun 06, 2010
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