Top thread keeps snapping ,adjusted tension but still snaps when trying to sew
Sometimes the problem can be the thread itself. I bought some cotton thread that would break at the slightest pull. Try using polyester or even quilting thread. It might make the difference.
Top thread snapping. Do you have an idea of there it is breaking?
First I would check the needle throat plate and needle. If you have stab marks on your needle plate, examine it closely for a crack. (get out the magnifying glass or jewelers loop) I recently fixed a problem I had with an old singer that kept breaking the top thread by replacing the needle plate. The old needle plate was so damaged it had actually made a knife edge which consistently cut the thread right at that location.
Change your needle and make sure it is the proper size for your thread. Too narrow of an eye can shred the thread causing it to break.
Next, check anything along your threading process that could be catching or snagging the thread. A worn or chipped thread guide can be a real problem.
Also make sure your thread hasn't dropped down below your thread cones and wrapped around the thread spindle. This would cause extra tension that might not be readily apparent.
Good luck
SOURCE: top thread keeps breaking
This sounds like a backwards needle. Take out the needle and when you re-insert it back in, make sure that put the flat side to the back.
SOURCE: Top thread stitches correctly but bottom thread loops.
FYI---- Loops on the bottom-- problem is in the threading..
Loops on the top--- problem is with the bobbin.
SOURCE: thread caught in hook race
There should be a small screw on the side of your bobbin case adjust it little by little until you get the correct tension.
SOURCE: Thread loops
Proper set of bobbins and tension set up vs. fabrics will sew you satified.Also incude regular maintenance cleaning of the feeds dogs with a brus,also the shuttle assembly need sometime to clean.Some threads and fabrics chips accumulates in the feed dogs and shuttles assembly.In setting up thread bobbins the thread should be clockwise direction as you pull out on slot coming out to the bobbins (as you shown in my inserted image manual).The loop thread should be propely in the sequence position same like in the image refer to it.If you use cotton/ polyester fabric in the begining of trial set tension dial to No.3 and stich to No. 8 to 12 any convenient to you Use needle No. 14 .Posible make a record if you are sewing different types of fabric mostly silk fabric is hard to sew adjusting to lower stich can posible sew satisfactory.
SOURCE: have dificulty ftting the bobbin holder in a singer 974 machine
I need an illustration of the correct installation of a bobbin case for model 7422
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