Thread from the bobbin jams in large clumps ans pulls out of the fabric as if it never locked a stitch. winds around the bobbin stem in the bobbin case.
Try changing the needle--flat side goes to the back of the machine
check the thread take up lever & see if the thread is still on it
it's also possible that the machine is out of time & needs to serviced
Clean machine and rethread.
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SOURCE: bobbin thread bunches up creating a tangled mess under the plate
This could either be due to the bobbin being wound too loosely, or the tension on the top thread is too loose. This just happened to me the other day, and I thought it was the bobbin thread, but then I put another bobbin in with a different color than the top thread (this is a huge help in diagnosing thread issues), and I was surprised to find that it was actually the top thread that was a big loopy mess on the underside of the fabric. I fixed it by tightening the tension on the top thread (quite a bit), and everything was fine.
SOURCE: Top thread won't pick up the bobbin thread
re insert the needle, maybe you did not put the needle up as far as it is to go. Make sure the flat side of the needle is to the back of the machine. Without any thread in the machine hand turn the wheel and look to see if the hook of your bobbin would/could catch the thread (to see if timing is right)
then thread the machine and hand turn the wheel and see what it is doing.
Your timing might be off, but I do not think that is likely. Though it is possible that when the needle fell out, it hit something hard, broke, and pushed the machine out of timing. then you need to bring it in.
SOURCE: will not pick up lower thread
DId you check for lint or thread fragments under the plate? This can cause all kinds of problems. Bush out any such materials. See if that helps.
SOURCE: bobbin thread gets bunched up and loud clicking sound
The problem is never the bobbin when you have this problem. It's the top thread. Take the thread off the top of the machine and rethread the top. Make sure the small tension dial is on 4 or 5 (the larger dial on the front left is for the pressure on the foot, not the thread tension.) After you thread the machine, put the pressure foot down but NOT on the thread. Then pull gently toward the back of the machine. When you do, the needle should bend slightly backwards before the thread comes through the machine. If it pulls with no resistance you could simply have "fluff" or remants of thread between your tension discs. If you do, put the dial on zero and using an old needle, clean between the discs and try threading the machine again with the "pull test" I described earlier.
No tension on the top of the machine, lets the bobbin tension win and it pulls all the thread to the bottom of the fabric.
SOURCE: freesia 415 - bobbin thread is jamming up will
1. Put in a new needle
2. Take the thread off the top of your machine and rethread the top. Make sure the presser foot is in the up positon when you thread your machine because that is when the tensions discs separate so your thread gets deep into the unit where it belongs. The tension dial (the small dial) should be on 4 or 5.
3. Inspect the bobbin area. Do you see the thread laying across the bobbin itself? You should alway see the thread laying across the bobbin in that model. That tells you that you've threaded the bobbin case correctly. The thread must be pulled into the metal guide of the bobbin case, from approximately the 6 O'clock postion to the 7 O'clock position.
4Never turn the handwheel away from you with the 415. You'll notice that the take up lever is of a more open design. If you turn the handwheel backwards (away from you) the thread will jump out of the lever and jamming will result.
Now thread the top down to the needle and holding the end of the needle thread, hand wind the fly wheel towards you to lower the needle and pull up the bobbin thread. Close the bobbin cover.391 views
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