My mum bought me this machine brand new- and after a few hours of use the bobbin case is not sitting in the metal casing tightly, causing the thread to loop and bunch up around it, and on the underside of the fabric. I have tried re-threading it again and again, and taking the whole thing out and re-fitting it. It seems to stay put for 30 seconds of sewing then comes loose again. Is this something a Sewing Tech. can fix (permanently) or will it keep happening?
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Re: Re-curring loose bobbin case
According to the manual, this is a drop-in bobbin.
If the bobbin case came loose, the needle would probably hit it and brake.
Take the bobbin out.
Turn of the power and remove the needle plate (under the presser foot).
Raise the needle to it's highest position and lift out and reset the bobbin case into the shuttle. This should be in the maintenance section of the manual. The bobbin case should fit snug.
Make sure the thread is feeding from the bobbin, counter-clockwise and through the guides on the bobbin case.
For a rotary bobbin with a metal bobbin case.
Remove the bobbin case. Make sure the thread is feeding clock-wise and through the guide on the side of the bobbin case.
Raise the needle to it's highest position - this puts the hook at the lower left. Left the tab on the back of the bobbin case and slip the bobbin case back into the shuttle with the "arm" straight up. You may have to move the bobbin case a bit to the left or right for it to snap into place.
If the problem persits, take the machine back to the dealer - there should not be a charge for fixing this as it is brand new - keep your receipt and warranty information at hand.
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One reason would be the holder that pushes against the bobbin is too tightly pushing against the bobbin. If it is much too tight it won't allow the thread to go past that point and get stuck. Another reason would be the bobbin case has a small cut on it. This must be smooth all the way around since the thread has to ride on it. The tension on the bobbin case should also be checked. If it is too tight it won't be able to extend the thread from the upper thread.
You have two ways to adjust, 1. On the machine there is a adjustment knob..usually numbered between 1-9, set knob at 4 2. There is the bobbin case, usually metal which holds the bobbin, the bobbin sits inside this unit and there is a flat plate which the thread slides under when sitting the bobbin in case, there is a tiny screw which shouldnt be too tight but if you hold string while bobbin is in case and slightly yank the string while everything is dangling, it should only move a inch or so..ok
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
I assume you actually mean the metal ring that holds the small round case that the bobbin itself sits in. There are usually two arms that swing in to hold that larger metal ring in place and then there is a plastic and metal piece that sit behind the large metal ring. fit the plastic piece that may look somewhat like a scoop next to the metal piece that usually has the post the the bobbin fits onto and has a quite sharp tooth on it. The metal ring then goes on to hold those two pieces in place and the two arms swing in to hold the metal ring into place. The bobbin or bobbin case now can be put back in. Hint on metal ring placement: they almost always have a notch that goes at the very top where the arm on the bobbin case sits in when it is in place. You may find it easiest to do this with the machine laying on its back so you don't have to have 4 hands to hold everything in place while putting everything back in. Good luck!
Make sure there is no fluff/lint within the bobbin case causing the bobbin to stand proud. Pressure from the bobbin thread can sometimes stretch the bobbin itself.. replace the bobbin with a brand new one. Double check your threading be removing all thread and starting from scratch.
You might try adjusting your bobbin. You can do this with a tiny flat head screwdriver. Adjust in very small increments! There is a screw located on your bobbin case.
Here is the info directly from the manual: "To test if the bobbin thread tension is correct, suspend the bobbin case by the thread and **** it once. Correct bobbin tension will result in the thread unwinding by only one or two inches. If too loose it will unwind continuously. If too tight, the thread will not unwind at all. When adjusting the tension on the bobbin case, make only slight adjustments with a screwdriver."
That is usually the cause of garbled up threads on the bottom side. Sure hope this helps! (The 132Q is my third Singer, but will be my last. It's been a nightmare to deal with, and ALWAYS has something going wrong with it. I can never just sit down and do a project.... it is like the settings never stay put. There is also a LOT of plastic inside this model, and it cracks, breaks, warps, etc. We've replaced plastic gears/parts with metal parts, and it still acts up. Just a lemon model!)