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Re: On my Singer Scholastic, the thread jams in the...
It sounds like it is not threaded properly through the tension disc. Try rethreading and make sure the presser foot lever is in the up position. If it continues, once threaded and with the presser foot down, pull on the thread through the needle. If it has resistance, it is threaded properly. If it pulls easily then there is a problem in the tension area. Check to see if there are peices of thread broke off in between the tension disc.
Re: On my Singer Scholastic, the thread jams in the...
My model 6704 won't pick up thread 'cause the drive gears broke so the bobbin won't turn... the horizontal gear can be seen from above the bobbin carriage or both gears seen from below the machine by removing the bottom cover. gear set can be ordered from www.sewingstyle.com
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Always turn the handwheel TOWARDS you (counter clockwise) as turning it in the opposite direction (away from you, clockwise) may knock the timing out requiring repair from a service center.
Always be sure your presser foot is in the DOWN position before sewing. Sewing with the presser foot in the up position will cause your thread to tangle and your bobbin to jam.
Change needles regularly (after 16 hours of use) as dull/weak needles can cause damage to your machine and fabric. Only use SINGER needles on your SINGER sewing machine.
Always be sure you are using the correct bobbin for your machine. Class 66, Class 15 and Class 15J bobbins look very similar. However, using the incorrect bobbin class in your machine can cause damage.
You may have a burr from an errant needle strike on your bobbin case or even on the bobbin itself. Check to see if there are any rough spots on or around the bobbin.
If you don't find anything, you may want to remove the bobbin assembly and clean the lint out from the lower assembly. Sometimes the smallest amount of lint or pieces of thread can cause problems with the bobbin.
You didn't mention if the tangled thread happens on the top or the bottom of the fabric. If it is on top, then it is a bobbin issue. If it is on the bottom, then it is an upper tension/thread issue.
Try removing the bobbin, thread, and needle. Rethread the entire machine using a different bobbin and a new needle. This may solve your problem. Good luck!
Clean under needle plate where feed dogs are for lint
Clean bobbin area for lint or loose threads
Rethread machine top thread make sure to get every thread guide
Check tension 3 or 4 is usually good
My Husqvarna started having problems with the bobbin. The thread from the bobbin side is a tangled mess when I stitch. The top looks fine, but the seam falls apart easily and the backside is all tangled. I cleaned underneath the bobbin holder but it didn't help.
Something is not threaded right on the top, or the thread is tangled. Take the thread completely out and rethread. Also, make sure that no thread is caught in the bobbin area, if necessary take bobbin casing out and clean with a brush. Always turn the handwheel towards you, never away from you because it can mess up the timing, Also google Singer 401a there is a great blog on this machine
* Un-thread your machine and remove your bobbin. Clean any loose thread or lint out of your bobbin case. Re-thread your machine, reinsert and re-thread your bobbin.
* Change your bobbin There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.
* When you start to sew a seam, grasp 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.
Try these time savers:
Test your thread quality to start, thread your machine and LIFT the presser foot (this opens the tension disks). Pull your top thread straight back. If you feel no tension no mater how much thread you pull, your thread is good. If that your machine passes that test, then let me know, we can go to step 2. If not, try different spool of thread, same test until you get a smooth pull (tip: always check your thread this way when you thread your machine)
Pull on your threaded bobbin thread while it’s in the machine. Does it pull smooth and even? If so, go to step 3. If not, try a new bobbin (bobbins get bent or distorted if wound too tight).
Clean thoroughly in the hook and bobbin case area and oil 1-2 drop is all.
Stop sewing! You need to adjust your tension. Your book will explain exactly how to do this. If you can't find your book, try setting the tensions to the same number. If your tension adjustments have a mark at a certain number, use that setting for most materials. If not, try setting it to about 3.
To test your settings, thread your bobbin with a different color, then do a test stitch. Check the top and bottom stitches for a spot of the other color thread showing through. If the bobbin thread shows in the top, raise the bobbin tension setting a bit and try it again.
Ok, this is real simple. pull the thread from the bobbin up through the bottom of the machine near the needle. also, hold the thread that you threaded through the needle with the other strand on the left of the needle. hold them there for a few stitches... and wahla! no more birds nest.
This is a bit late, could the bobbin case not be seated properly? You need to put it into place and then turn it clockwise until it seats soundly in the opening.
Also, check for burrs...the needle may have left a rough mark on the plastic or metal in the bobbin area. A piece of batting, or even an old knee hi should snag on any rough areas.