Question about Brother LS-2125 Mechanical Sewing Machine

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Looping stitches on underside of fabric

I think it is threaded properly but top stitches are ok but underneath is all bunched and loose. Any ideas??

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Check the bobbin to ensure it is installed correctly. Your bobbin is probably in incorrectly. You shouldn't have to change your tention yet but it is possible. this may sound stupid but the other culprit may be that your forgot to put the foot down. Hope this helps. Let us know. If you found that the tension adjustment did help call your local service center and ask for the in-house tech, ask them where the original # position is when it came from the manufacturer and re-adjust the top tention to that.

Posted on Apr 27, 2009

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Thighten the top tension by turning the tension knob to a higher number.

Posted on Apr 19, 2009

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1 Answer

Phaff 1472 stitches are bunching up underneath


That is thread nesting or bird nesting. Could be the result of several things, but main reasons are upper tension too loose and the thread not being completely seated in the tension disk.

Sewing Machine Thread Bunching Up Here Why

What causes Bird Nests Superior Threads

Birds nest under the fabric big loops of thread top side looks good...

Nov 17, 2016 | PfaFF Sewing Machines

1 Answer

The tension on my machine is off.I don't know which thread to adjust.bobbin or top thread. on fabric top stitch seems ok,bottom stitch bunches up and is loose.How do I readjust the tensions?


If the thread problem appears under the fabric, it is a top thread issue.

If the thread problem appears on the top of the fabric, the bobbin thread is the issue.

Perhaps the upper thread is not seated completely in the tension disk. Remove the upper thread from the machine, ALWAYS RAISE the presser foot, then rethread from the beginning. Make sure the thread path is correct. Test your stitch.

If the thread is still looping under the fabric, the upper tension is too loose. Set the upper tension to the midway point. Test and adjust the tension until it is where you want it. Preferred tension is when both threads meet in the middle of the fabric.

sewing machine tension Google Search


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Oct 29, 2016 | Sewing Machines

1 Answer

Needle stitch fine. Bobbin stitch loops.


First, try a brand new needle.

Second, consider using a better quality thread. By all means, AVOID old or bargain bin threads. Coats & Clark used to be a standard, but thread quality has improved over the past few years, so you may want to check out other brands like Aurafil, Superior, Isacord, etc. Also, cotton wrapped polyester thread releases thread lint that contributes to build-up of gunk in the machine. Some sewists have noted that they experience more sewing issues when using C&C threads. However, some machines will do better with certain thread brands than others, so some experimentation may be beneficial.

Third, check the stitch on your sample again. Generally, when thread loops appear on the underside of the fabric, it is the upper thread that is the problem. If loopy threads appear on the top of the fabric, it is the bobbin thread that is the issue. You can even use a different color in the top to help distinguish which thread is the problem.

Fourth, when threading the upper thread, Always Raise the Presser Foot during the threading process so the tension disk is released and the thread can seat properly. "Bird nesting" occurs when the thread is not seated in the tension disk.
Sewing Machine Thread Bunching Up Here Why

Birds nest under the fabric big loops of thread top side looks good...

Fifth, when the upper thread appears on the underside of the fabric, the upper thread tension is too loose. If the bobbin thread appears on the top of the fabric, the tension thread is too tight (or the bobbin thread is loose). Start out with the upper tension set at the midway point and tweak it from that point. The tension is ideal when both upper and bobbin threads meet in the middle of the fabric.

Also, remember that tension is not static--a tension setting for chiffon will most likely not work on cotton or denim. Get comfortable adjusting the tension to suit the project you are sewing.

..

May 24, 2016 | Sewing Machines

1 Answer

Singer 2517c. When sewing, the bottom stitch is using to much thread, excessive amounts & the stitch isn't tight. I've tried all settings & have used a new bobbin. I'm at a loss......


Your description isn't very clear. When you say the "bottom stitch is using too much thread" Do you mean you see lots of loopy threads on top of the seam? Or do you mean you see loops on the bottom under the fabric? If your loops on the bottom, that means the top tension is too loose, you've not remembered to put the presser foot down, you have not threaded the top thread properly... Start by rethreading carefully with the presser foot UP. Then do a test stitch, remembering to put the presser foot down. If you still get loops underneath... tighten the tension.

If your loops are on the top of the fabric. loosen the top tension... then do a test seam... and if you still have loops loosen again and repeat. If you start to see loops on the bottom... tighten the tension a bit.

Good luck

Dec 30, 2012 | Sewing Machines

1 Answer

The top stitch is perfect but underneath the material there are many loops. I am assuming this is from the bobbin. How do I correct this?


no, more likely your top tension is too loose causing the loops on the underside of your fabric, loops on top would be bobbin too loose. raise presser foot and rethread top thdead pulling thread into tension fully. set top tension dial to 5 and test sew. if still looping underneath try tightening top tension by turning dial up to 6. but usually top tension should only need minor adjustment tweeks. you can test top tension by lowering pressure foot to engage tension and holding thread just above needle thread guide, pulling thread downwards . there should be resistence on it to your pull. if you cant feel any then tension device may be faulty, and require service.

Jun 25, 2011 | Sewing Machines

1 Answer

How do i adjust the loose thread on top? Using the 3 thread stitch the top loop is loose and bulging over edge instead of smooth with rest of stitches. Setting is set to recommended setting but is still...


I always adjust my overlocker stitch in several ways. I start test serging with the blade set right out to the right so that it "fills" the stitching. I'll set all the thread dials to the middle setting, ie. 5. Then I test serge, and check the stitch formation. If the needle is looping underneath, then I'll tighten it "A LITTLE". If the looper threads are lying off the cut edge of the fabric, then I'll dial both the top and bottom looper numbers up a little to make those threads tighter.

Each fabric behaves differently depending on its "hand" so the right stitch settings do vary, ie. organza is different to heavy weight cotton or denim. So if my inital setting is then "bunching" up the fabric within the stitching, I will then lower the numbers for the top and bottom looper to release the thread some. And if the fabric is very soft and light and still bunches up, then I will move the blade over to the left some, cutting a narrower edge within the overlocking so the threads lie better.

So revist the settings, check that the cones are flowing freely, thread is into the tension devices fully, then retest the stitching. If it is the top looper only that is looping off the edge, and not the bottom as well, and they are both set to the same number, then I'd be a bit suss about the tension dial.

Feb 28, 2011 | Singer 14SH654

1 Answer

Stitches are looping on the underneath and missing some stitches


Refer to the manual for cleaning.

Replace the needle with the size recommended for the type of fabric being sewn. The flat side of the needle is usually facing the back of the machine - check manual to be sure.

Always thread any sewing machine with the presser foot up. This opens the tension control so the thread can properly enter this device.

When a sewing machine is threaded with the foot down, the tension control closes and the thread cannot enter as it should

You then get loose stitches because the top thread and bobbin thread cannot make a proper stitch and the tension of the bobbin thread is pulling the top thread to the underside of the fabric.


Mar 07, 2010 | Janome Sewing Machines

1 Answer

THREAD GET BUNCHED UP UNDERNEATH THE FABRIC, THE STICHES SEEM TO BE INCOMPLETE THE TOP LOOKS GOOD THAN I TURN IT OVER AND THE THEAD IS BUNCHED AND LONG LOOPS OF THREAD ARE LEFT. THANKS LOU


Hi Lou! This sounds like a tension problem--the tension on the top thread is too loose. Try using different color threads on the top and bobbin, then carefully rethread everything. Stitch a couple of inches and check the underside. If the top stitches look fine and the bottom ones are loose and loopy, and with the pressure foot down, tighten the tension. Move the knob or dial (whichever you have) just a little bit. Sew a couple of inches more, and recheck. Continue to sew and recheck, gradually tightening the tension, until you see little if any bobbin thread on the top or top thread on the underside of the fabric.

Let me know if this helps, ok?


Robbie

Jan 27, 2010 | Singer Sewing Machines

1 Answer

Singer 301a...sews on top of fabric nicely...bottom is just loose loops of thread...it's like the bobbin is not sewing...I put 2 different colors in to see...top is perfect...on bottom of fabric I see the...


This is a tension adjustment problem. It's good to use two different colors of thread, like you did. From your description, the top thread (needle thread) tension needs to be tighter. As you tighten the tension of the top thread, you'll see that the top thread pulls the bobbin thread up into the fabric so it's no longer laying loose on the bottom of the fabric.

You'll need to have the pressure foot down when you tighten the tension. Tighten it a little, sew a practice seam, check to see what the stitch looks like. Tighten it a little more, sew, check, etc etc--until both top and bottom look the same--you shouldn't see much (if any) of the bobbin thread color on top of the fabric or the top thread color on the underside.

Let me know how this works for you, ok?


Robbie

Jan 25, 2010 | Singer Sewing Machines

3 Answers

Won't stitch properly


ever tried adjusting the thread tension control? clean if possible
tighen it more, loose tension adjustment causes loose stitch and tangling of the thread.

Jun 25, 2008 | Janome D'cor Excel 5018

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