SOURCE: I'm trying to do shirring?
My machines has a shirring foot, so I don;t have the same machine. However, I do not think that elastic thread will work in the bobbin. Have you tried it the other way around? Do you have your manual?
SOURCE: Not picking up the Bobbin thread
I cleaned the machine good with canned air, oiled it. I took out the bobbin case and cleaned it good also. I then noticed the tension screw on the bobbin case was loose, tightened it and the problem was fixed.
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.
Good luck,
-R
SOURCE: pfaff 1212
check your needle and make sure that you put it in the right way. You should have the flat side of it to the back.
SOURCE: Bobbin thread bunching up.
Thread the machine with the presser foot up and see if this will remedy the problem.
If not, refer to the manual to be sure the threading and bobbin are set up as they should be.
If the bobbin thread and top thread continue to not link together, it could be the timing needs to be adjusted.
In this case, take the machine to a Brother dealer for service along with a sample of the stitching.
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