I have a Singer 1120 sewing machine that is giving me threading problems. When I sew it'll jam up or get stuck mid-way. When I stop to check what is wrong and I pull the testing fabric I notice a lot of thread is coming from the bobbin area. I've done everything from re-spooling the bobbin, reconnecting it, to even re-threading it and it's the same thing over and over. I've even checked the timing and the timing is still good on it. Please help.
By Sharon
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First of all - either check your manual troubleshooting pages, or download this free copy from the Singer website:
www.singerco.com/
The troubleshooting guide is on page 74. You may want to print this out to have on hand without having to have the computer up:)
Now, have you checked your bobbin case, the area where the bobbin case seats back into the machine, and the area under the throat plate (where the feed dogs come up through to the top) for bits of debris (thread bits, fuzz, lint, etc)? That's usually what causes the problem you're experiencing. *Don't use an air spray duster! This will only blow the lint further into the machine. Instead, use a mini-torch (flashlight) to look, then long tweezers or a skinny paint brush to remove any debris.
If that doesn't help, go through the following, and if those don't solve your problem it's time for a visit to the Singer repair tech:
Are you positive you're seating the bobbin case into the machine correctly? You've probably been doing this for years but on older machines with that front (or side) load system the catch wears and sometimes it helps to follow the insertion instructions step-by-step from the manual.
Are you using the correct needle, thread, tension, and feed dog settings for the fabric you are trying to sew?
Are you alining the fabric start edge completely under the presser foot before starting to stitch, or have you got into the habit of starting your stitching with the fabric edge lined up with the needle instead of the presser foot end?
Are you holding the thread tail taut (but not too taut - you're 'helping' not pulling!) when you start stitching to help the fabric along through those first stitches? (Especially helpful when stitching very fine or very thick fabrics)
Again, if the above doesn't help it may be time to take the machine in for servicing. Your machine is an older one, and may have some worn plastic or silicone gear teeth that need to be changed.
Get out your manual if you have one and check the directions for checking bobbin tension. Usually a screw in the bobbin case.
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