Question about Singer Drop-In Bobbin 758B-28BH Mechanical Sewing Machine

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The bobin case does not fit tightly in the holder...

Hi there... the bobin case does not stay in place... to me it seems to move around more than it should. The bottom thread on the material is knotting up. This is a Singer Model 9010. Can you help me?

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Bobbins come in different sizes,try a larger size

Posted on Aug 17, 2008

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The bobbin won't stay in place


Your bobbin is too short. The correct bobbin must be even with the bobbin case. If it is the bobbin case that is moving around then you must adjust the inner rotary hook bracket assy. It must allow the thread to move between the corner (near screw) and the bobbin casing. Rotate the hand wheel towards you to make sure the thread fits between the corner and the casing. Make it as tight as possible without a snag taking place.
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Feb 14, 2015 | Brother SE400 Computerized Sewing and...

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Bobin ran out and when I replaced it the thread from the needle keeps getting in a wad around the bobin holder


Sounds like there are spare thread pieces stuck in the bobbin casing/ hook area. Disassemble (it is usually self-explainitory on most machines), clean it out, then re-thread your machine, being mindful of the tension settings. Does this fix it?

Jun 21, 2011 | White Sewing 312 FS

1 Answer

I have an Elna Carina Electonic machine. It was just tuned up, but got jammed up in the bobbin. I took it out, used brush to get all lint out but now cannot get the bobbin unit back in an working. No...


Lovely machine, don't dispair. You need to turn the rotary hook with your flywheel so that the open side of the hook is facing you. Now move the black inner piece around inside so that the cutout side is facing you too and just a bit to the left. Now lower the bobbin holder in with the metal arms facing towards you , they should slip in between the outer parts. You want the two bobbin case screws to line up with the holes underneath, just give it a bit of a wiggle until you feel it drop into place. Now screw in the two screws on the bobbin holder with your mini screwdriver from your kit to secure.

Now rotate the flywheel towards you, the bobbin holder should stay still while the rotary hook goes around.

If you have any issues feel free to email me on cwrogers@tpg.com.au and I'll try to elaborate or take a pic of the process tonight.

And remember to hold the two threads when you start a seam at the back for a few stitches to avoid the thread jams, just a quirk on these machines but I love them so much.

Hope this helps you.





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Mar 16, 2011 | Sewing Machines

1 Answer

My problem is with the bobin. The machine worked well two days ago. Now when I try to sew , the bobin thread is becoming caught in the lower area and produces tension that stops the machine after about two...


With out looking at the machine it is hard to determine the exact problem, but make sure your bobbin thread is placed in the bobbine case corretly, and pulled through the little tension area on the bobbin case.

Next make sure the upper thread is in the tension discs, if not this can also cause you a problem, plus if possible used a little canned air (with the pressure foot up, machine unplugged and thread removed) blow out the tension area.

Good luck.

Mar 12, 2011 | Brother SE350 Mechanical Sewing Machine

1 Answer

My thread is bunching up under needle when sewing therfore it locks the machine up. i've tried re-threading several times and it's still doing it.help! please! after this i have to take bobbin & bobin...


Check the bobbin tension and that the thread is tight around the bobbin. Make sure that the bobbin is in the right way around - the bobbin thread should double back on itself coming out of the bobbin holder.

Feb 22, 2011 | Husqvarna Designer I

1 Answer

Sewing with heavy thread, what should the tension be set on?


hi there
the tension depends on thikness of material but you must use heavy thread on needle and thin thread on bobin case .
- you must be sew fiew stitches firist and look if losse stitch from down you must tight tension slowly sloly and if there is losse stitches from upper you must tight screw for bobin case spring slowly slowly until stitch format be agood condation.
best regards
ashraf abozid
aabozid@hotmail.com

Jan 06, 2011 | Juki DDL-8700

1 Answer

I took out the bobin case and now when I put it back in it wont stay. The thread bunches up or the bobin case comes out of place. Any idea on how to get it to stay put?


The manual usually shows a pretty good diagram of how it should be, it snaps in place. Call singer at 1-800-4singer. Or go online at singerco.com and download a manual for free,

Sep 09, 2010 | Singer 5050 Mechanical Sewing Machine

1 Answer

Janome 11000SE - the bobin case keeps spinning and won't stay in place. I am on my 3rd one. I just had it in for a check up and they said nothing was wrong with it. They put in a new bobin case though, and...


Once the bobbin case is damaged you need to replace it or the problem only get worse. If you are on your third case then something is not right. This machine does not have that kind of history of problems with the bobbin case. Typically this kind of problem is caused by the thread not being inserted into the thread take up lever correctly. (this is the lever that moves up and down when you sew and you see it at the top when you thread it) There is a small spring gate that the thread needs to pass thru when you thread it, There could be a problem with the positioning brackets that hold the bobbin case in place so I would explain that you feel three bobbin cases replaced is excessive and you need some help in getting the problem corrected.
I have assumed that the dealer is replacing the cases for you, if you are just buying the case and putting in yourself, then the problem may well be the brackets, Good Luck!

May 25, 2010 | Sewing Machines

1 Answer

Thread bunches from the bottom while sewing.


Hello, sewing is a part of my income and I've encountered this problem before and managed to fix it on my own, by trying out these different things. I re-threaded the machine and checked to make sure that the tension is not too loose. Check the bobin and the sack the bobin fits into, sometimes it comes loose too, click it back into place and re-do the bobin. adjust the tightness of the stiitches, I usually put it on 2 .5 - 3. Hope this helps. Good luck to all. Nefishakh@hotmail.com

Nov 16, 2008 | Singer 5050 Mechanical Sewing Machine

1 Answer

Bobbin gets tangled up


Try taking the covers off again. Now check under and around the bobin case, thats the black plastic bit that holds the bobin. Look for any fuzz or stray bits of thread inside the machine and and around the feed dogs and under the needle too. I use compressed canned air to get in and really blow everything clean. For some reason if the machine is not totally clean, inside the bobin gets tangled up. If you have had even one knot, odds are parts of it are still floating around inside there somewhere and stopping some little lever from moving and jamming your whole machine. Clean under the bobin case too since lint can left it up and keep the bobin from being perfectly level. Also inspect your bobbin case to make sure it isn't scratched along the edge that rotates back and forth. Even a a tiny scratch will cause it jump its tracks and your bobin will lift up and become jamed. In that case you just have to buy a new bobin case. But most of the time your culprit will be some stray bits of thread or lint.

Sep 30, 2008 | Brother SE-270D Computerized Sewing...

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