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Check the stitching and confirm that it is in fact bobbin thread and not the top thread that is creating knots & loops under the fabric. This is usually the case and is called thread nests or bird nests. (You can search the internet for more information about this symptom.)
Install a brand new needle.
Remove the thread from the machine.
ALWAYS RAISE the presser foot while rethreading the upper thread.
Confirm the thread path is correct.
Verify the bobbin is installed facing the correct direction in the bobbin case and the bobbin case is threaded properly.
Set the upper tension to the midway point (factory standard) although it may need to be tweaked as machines change with use and time.
If the thread is still making a mess, then the machine most likely has a timing issue. There are multiple web sites and videos that discuss sewing machine timing. Or take it for service.
are you sure you followed all steps? Make sure you followed the
threading diagram correctly. You must pull your thread through a hole in the bobbin,threading from the inside of the bobbin to the out side .hold the thread on the outside of the bobbin and wrap thread around the bobbin shank twice. Hold the thread in place and find the groove on the bobbins' outside then match that to the "wire" on the spindle of the winder. You will then disconnect the drive by turning the small knob inside the hand wheel. Next ,you will push the bobbin spindle against the small wheel to create traction to turn and fill the bobbin. My guess is that either the bobbin was not in place or you forgot to push the winder against the traction area. Happy sewing.
The white bobbin thread was showing on the top of the material correct? Make sure bobbin thread is in the tension correctly, check the top thread spool and make sure thread is not caught around it, if you have a manual top tension make sure that is set correctly. Personally I would never use wd40 in a sewing machine, sewing machine specific oil is always better. You seem to be describing two different problems. The thread bunching is probably from the thread jump out of the take up lever.
Hello. What you have described presents a large number of possibilities. What I can tell you is this; A sewing machine that uses a bobbin is known as a lock stitch sewing machine. On a basic lock stitch machine, two threads are used to make the stitch - the needle thread and the bobbin thread. In order for the stitch to be made, the bobbin and it's thread are passed through a loop in the needle thread, or more accurately, the needle thread must pass a loop around the bobbin and it's thread, after which the loop is pulled back in and up, taking the bobbin thread with it right up to the underside of the fabric and securely holding it there and the process is repeated, many times over in the blink of an eye. The bobbin, weather placed in a case first or or set directly into, has a place in the center of a rotating hook, which can be oriented in either a vertical or horizontal position. It is the sharp, pointy hook that grabs the needle thread above the eye of the needle and loops the needle thread around the bobbin and it's thread. In less than one full rotation of the hook the needle thread is picked up, looped around the bobbin, and pulled back off of the hook, taking with it the bobbin thread and pulling it up tight to the bottom of the fabric. The process is then repeated, many times over in the blink of an eye. For a sewing machine to function correctly, every aspect of the process must be right, and if any part of the process is not spot-on, failure occurs. Process failure ranges in severity from one stitch out of a thousand skipped to catastrophic breakage of the machine and it's parts. I'm sorry I don't know of a White repair shop in your area. I am new to FixYa, so I'm not sure if it is appropriate to offer my services, but I think it is okay to give you my number if you want to call me. It is 574-808-9613.
Unlike some machines this one doesn't really need the bobbin threaded. Place the bobbin in the bobbin holder and leave about 5" of thread extended out from the bobbin holder. With the bobbin compartment still open, lower the presser foot and turn the handwheel to move the threaded needle through the stitch cycle. (I find holding the threads helps; normally, you'll feel them pulling under your fingers.) When the needle has returned to the top of the path, lift the presser foot. Then pull both threads around to the front (the bobbin thread should wrap around the top thread). Then move the threads to the back of the presser foot.
If the needle isn't catching the bobbin thread, first try a new needle (bent or dull needles don't always function properly). Next check the bobbin holder for nicks or other damage. There is a small hook on the bobbin holder that should be where the top and bottom threads intertwine. Under rare circumstances, you will find that the bobbin tension of the bobbin holder is misadjusted. This can interfere with the bobbin thread twisting properly. There is a little set screw that allows you can tighten or loosen the bobbin tension as needed. Adjusting the screw is to be avoided when possible and done in small increments (1/8 turn) if needed. It's easy to strip the threads for the set screw and end up needing to replace the bobbin holder.
IT PROBABLY IS THREADED INCORRECTLY. GO SLOWLY BY THE DIAPHRAGM AND MAKE SURE IT IS THREADED CORRECTLY. ALSO MAKE SURE SPOOL PIN HOLDERS ARE IN PLACE THAT HELPS TO GUIDE THE THREAD CORRECTLY.
I agree about the needle, took me forever to learn that one. I have a Kenmore Sewing Machine that would not pick up the bobbin thread every time I tried it after having it for a while. I would go to my other machine and use it. Then my daughter in law put in a new needle and it worked perfect until I tried to stitch a different type of material. It was then it clicked and I started researching needles for machines. You have to use the correct size needle for the material you are sewing or it will not work right. Also if your needle is dull or bent you will also have problems. Here is a site that may be helpful http://www.taunton.com/threads/pages/t00185.asp You can find more info by searching for "sewing machine needle information" Hope this helps.
Happy Sewer
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