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Re: CAN'T GET MACHINE TO SEW WITHOUT BREAKING THREAD
All you can really do it change the needle, make sure it is in properly (flat side to the rear) and make absolutely sure you have threaded it properly (presser foot raised when threading so the thread gets into the upper tension discs etc...) You can also check for lint in the upper tension discs, they should be clean. If none of this works then it may need to go to the shop.
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The thread sounds like it is not running freely so the upper tension is either too tight or blocked by lint.
If neither of these solutions work then try changing your needle as a blunt or wrong needle can also be a cause
It may be a tension or a threading problem. There are videos on youtube that may help. Change wording on youtube search to find issues that match your problems. Follow link. sewing machine problems YouTube
Check your thread tension isn't too tight, try on a piece of similar fabric that you are going to use, try sewing a line of stitches, if the thread snaps, change your tension number, then sew another line with your different tension number, try this until you can stitch without the thread snapping, it could be that your bobbin tension is too tight. Can you check your machine manual, it could even be the needle or the thread that's wrong for your fabric. But I would say, check your tension.
Hope this helps.
My experiences with thread breaking with machine on a quilting frame make me look at the upper tension being set too high, the needle being worn or movement of the machine is too fast. Reduce the upper tension first, then sew in straight lines at first. See if you can sew slowly, in straight lines and reduce the upper tension until the thread stops breaking. If so, try some 1-2 inch circles, again going slowly. If the needle thread is pulling to the back, you will need to increase the upper tension again until the stitches meet in the middle of the fabric. If you can't locate a balanced spot where the needle thread is not pulling to the back side and thread doesn't break, try taking the machine off of the frame and sewing on a table. If it won't sew this way, it needs some professional help. If it does, you will probably save a lot of time taking it in for service, making sure to explain to the repair center that you have problems on a quilting frame, not while sewing normally. When the machine is adjusted to sew normally on a table and you move it to the frame, you will probably need to reduce the tension by 1-2 complete turns of the tension knob.
A sewing machine operator can often help themselves when their machine does not operate properly. Here are some simple instructions, which if properly used can save time and mechanics service calls. TROUBLE;UPPER THREAD KEEPS BREAKING; This could be trouble;================Do this; 1.Top tension to tight================loosen tension 1 turn 2.Machine improperly threaded=========check threading 3.Thread twisted on guide post========" 4.Thread twisted out of tension=======" 5.Take up spring bent or broken=======Check action of spring 6.Thread jumped off pull off finger===Check threading 7.Needle bent or burred===============new needle 8.Bad cone of thread==================try another cone TROUBLE;LOWER THREAD KEEPS BREAKING; 1.Bobbin tensionspring to tight=======Loosen tension slightly 2.Bobbin threaded wrong===============check threading 3.Bobbin wound to tight or uneven=====try new bobbin 4.lint or thread on bobbin case=======clean inside case 5.Lint or thread inside hook==========clean inside hook 6.Bobbin case nicked bent or burred===check/change case TROUBLE;MACHINE STARTED SKIPPING STITCHES; 1.Needle bent or burred===============change 2.Needle set in crooked===============Check 3.Thread jumped off take up spring====check threading 4.Thread jumped off pull off finger===check threading TROUBLE STITCHES SHOWING LOOPS; 1.Forming loops on top of cloth=======Tighten bobbin tension ======================================or loosen top tension. 2.forming loops on bottom of cloth====Tighten top tension 3.Bobbin placed in case incorrectly===remove and replace 4.Bobbin thread slipped from under====check threading of tension===============================bobbin case 5.Lint or thread in top tension=======clean between tension discs
* Raise your feed dogs if your machine has this feature.
* When you start to sew a seam, hold the upper and bobbin thread tails. Hold them back and out of the way as you sew your first couple of stitches. This will keep them from getting caught in your machine.
* Your fabric may require a different needle. Generally, heavier fabrics require larger needles and thinner fabrics, smaller needles. You may also need a larger needle if you're sewing through many layers of fabric. And make sure to use a ballpoint needle for knit fabrics and a sharp needle for woven (or a universal needle for either). And make sure your needle is appropriate for the type of thread you're using.
* Adjust the pressure of your pressure foot, it may be too light for your fabric.
* If your upper thread and bobbin threads are different types, try using the same thread for both. And use a good quality, brand name thread.
* Change your needle plate. Try switching to a needle plate with a smaller hole (a straight stitch needle plate).
Important Note: If you change your needle plate, check to make sure your needle aligns perfectly with this smaller hole before starting to sew. A misaligned needle could hit the plate and break, which could be dangerous. And make sure to change your needle plate back for zigzag and other wide stitches.
The lowerloop thread kept getting cut by the upperlooper.....I rethreaded the machine in order and then made sure that the lowerlooper thread was UNDER the part of the machine that makes the looks the loopings (silver part that comes to a point on the right side of the needles...sorry I don't know what to call it) and the upperloop was ON TOP of the same part.....it started working great. I actually have very nice tight stitches now.