Question about Brother LS-2125 Mechanical Sewing Machine

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Tension sewing on cotton pants, the thread tension on top is fine but the underside has loops. where should the dial button on the front of the machine be set. I have not adjusted anything else. it is now on 0 what number should it be on?

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  • rbnelson03 Nov 11, 2008

    I took my machine in for repair and was told that this machine isn't worth the money to have it corrected. HELP! there isn't anything else wrong except the lower stitch has loops sometime. how do I get the bobbin tension right?

  • Anonymous Nov 13, 2008

    I have the same problem, top thread tension is fine, but the underside has loops. I've played with the top tension and the bottom tension, nothing has worked. At this point I fear I'm going to need a new machine.

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5 is the default tension.. if you are not satisfied with it try to adjust a little.it a try and error

Posted on Sep 13, 2008

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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

How do I adjust tension on a Necchi Lydia 510 sewing machine?


loops under fabric means top tension needs to be tightened
try cleaning the top tension dial with some unwaxed dental floss and see if that helps. if it doesn't then the tension dial may need to be replaced
also check to make sure the spool of thread is not getting caught on the spool holder
also try a new needle--one that is correct for the fabric being sewed

Feb 10, 2015 | Necchi Sewing Machines

1 Answer

Tension is loose underside


Loops appear on the surface (top side) of the fabric?
Reduce the tension by turning the upper tension control dial to a lower number. If the loops still appear on the surface of the fabric after you adjust the upper tension, the bobbin thread may be too loose. In this case, turn the screw clockwise, being careful not to over-tighten the screw, approximately 30-45 degrees to increase bobbin tension. After you adjust the bobbin thread, adjust the upper thread to match the bobbin thread.
Make sure you reset before your next project.

Apr 26, 2013 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

I have looping underneath. Top stitch looks great.


top tension is too loose,check threading up and tension dial. should be on 4-6. read manual and if possible clean tension device. if it is accessible you turn dial to zero and "floss" between tension discs using selvage edge of clean piece of cotton fabric. you can moisten it with denatured alcohol if very dirty. thread sheds dye particles, especially black or cheaper threads. needs to be removed regularly to keep tension discs clean. turn back dial to 5 after and thread up again. often this will resolve the problem

Aug 27, 2011 | Janome Memory Craft 9000 Computerized...

1 Answer

Sewing two pieces of cotton fabric with batting between. using NEW clark brand thread, NEW size 14 needle, during sewing the thread on the underside of the piece knots up jams the machine after sewing...


Threads underneath is the top thread coming down and not being tensioned enough by the top tension dial. So turn the top tension back to 5 and test sew. Does this produce an even stitch tension top and bottom.

If this then is still giving the looping underneath, recheck that the top thread has seated into the tension discs fully, always raise the pressure foot before threading the top of the machine so the tension discs are open fully.

Also cleaning top tension discs sometimes helps, to do this, turn tension dial right down to zero, raise pressure foot, remove all top thread and "floss" between the tension discs with the selvage edge of a clean piece of cotton fabric, if you get lots of gunk on the fabric edge from the tension discs, then keep cleaning with a fresh bit of fabric. Thread, especially, black or cheap brands, will shed dye particles and this will build up in the tension device with time. You can also clean with some denatured alcohol, just wet the fabric edge and floss again. Just don't get onto any plastic bits.

Now thread up again, set tension to 5 and check that the top thread is in tension by threading down to just before the needle, lowering the pressure foot, and pulling on the thread. It should be firm. If you can't get this to happen at all, then the tension device may have broken and will need to be serviced by a technician.

Also if you don't have a manual for your singer you can download at http://www.singerco.com/accessories/instruction-manuals, just type in your model number and click search.

Jul 03, 2011 | 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

Hi, What steps do I need to take to correct loops on the underside of the fabric. I have changed the needle, re-threaded the machine, switched the bobbin


Looping on the underside is usually your top thread coming through as its not under tension correctly. So rethread the top of the machine carefully, checking your threading diagram in the manual and checking the thread is going between the tension discs carefully.

You also should clean between the tension discs regularly as thread sheds dye particles and fine fibres and this will build up with time. Turn tension dial to zero, then carefully slide in the selvage edge of a piece of waste cotton and slide it back and forwards between the discs carefully to remove any buildup.

Now turn tension dial back to the medium number, usually 4 or 5 is the recommended setting, and rethread top and bottom as per your manual threading diagram, and try again.

There is good general machine maintenance and threading information at www.sewing.about.com, however if the above fails to improve the situation, then perhaps the top tension device has failed and needs replacing.

Mar 09, 2011 | Kenmore 19233 Computerized Sewing Machine

1 Answer

Stitches form loops below te work. i tried to tighten the thread tension & a used the pressure regulator but to no avail. kindly help


If you are getting loops on the underside of your seam, it is usually the top tension that is at fault. Check that the thread is under tension by pulling the top thread just before it goes into your needle with the pressure foot down (most machines don't apply tension until the pressure foot is lowered).

Check the tension dial - is it set to the middle number? usually 5 if the dial goes from 1-10?.

You can also clean between the tension discs - turn the dial to zero and slide the salvage edge of an offcut of light fabric between the tension discs to remove any build up.

Thread will shed particles of dye and filaments as it goes through the tension discs so you need to clean this area regularly.

Now rethread everything, check the tension dial is back to 5 and try again.

There is also good general sewing machine maintenance guides at www.sewing.about.com which I find very useful.

Mar 06, 2011 | 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

5932 knotting every other inch


Try oiling the hook if you haven't recently.
Check you needle plate and hook for damage, they may need to be buffed or sanded smooth.
Check your upper tension discs for lint and double check your upper thread path (proper threading).
There are other things like hook timing, needle clearance or broken check spring that may be wrong but you need a technician for those things.
best of luck!

Jan 28, 2009 | Singer 5050 Mechanical Sewing Machine

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