Question about Brother LX3125 Sewing Machine

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Tension for brother xl2120

My material does not move along when sewing, you really have to pull it along. The stitches are looping and the cotton keeps getting knotted on the underneath from the spool, it does not sound right either

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  • Expert
  • 276 Answers

Try removing needle thread completely and re threading the machine with pressure foot down. as sounds like top tension not working or simply too loose

Posted on Feb 17, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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bargainbox
  • 1388 Answers

SOURCE: stitching looping

This solution is for tension problems...if you cannot form any sort of stitch, the issue is quite different, so please let me know if you need a different problem solved.....the question you pose could have 2 meanings....this reply is for looping thread.

It is quite long, but just work through each section in order.

The "knotting up" can reveal a lot. If you have loose threads on one side or the other, the tension on the opposite side will be the culprit.

QUICK SUMMARY FIRST:
Ensure sharp new needle,
Thread guides and Bobbin are Clean & Clear of lint
Set Top Tesion to 4 ....then....
Balance Bobbin to suit.

TOP THREAD TENSION:
If the looping threads are on the underside as you sew, it is the top tension. Top tension ought to be between 4 & 6 (this variation to allow for the different weights of fabric in your projects).

IS YOUR NEEDLE SHARP ?
If you are using a needle that has seen quite a deal of work, or you suspect it may be blunt, change it for a new one !

TOP TENSION & GUIDES:
Make sure that when you thread the machine the presser foot is up so the thread goes between the discs and not to one side, top tension between 4 and 6, and that you have threaded through all the guides, including the last one, usually on the needle arm, just above the needle clamp.

It may be there is lint trapped between the discs, this will keep them slightly apart and reduce the actual tension, sometimes dramatically.

If tensions appear correct, and the thread is definitely in the channel between the discs, but still too loose and looping, try raising presser foot and remove your thread.

Now, with a 2" (50mm) wide strip piece of fabric 8 - 10" (20 - 25cm) moistened with methylated or denatured spirit, gently insert the fabric strip and clean between the discs with a see saw / to and fro action.

In the worst cases, gentle use of a needle to pick & remove the jam may be necessary, but be very gentle and make sure the tension is set at Zero and the presser foot is raised, (to disengage tension plates).... do not gouge or score the plates, they need a polished surface to work correctly.

BOBBIN TENSION:
Far less common, but if the loose threads are on the top, it is bobbin tension that is loose, it too may have lint in the spring and be giving a "false" tension.

I would not recommend fiddling with bobbin tension without good reason, it may end up with missing small screws and spring pieces, however, you can take the needle plate off to clean the hook race area (where bobbin case sits)

...this is just good housekeeping, my wife does this every time she replaces the bobbin....just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint. If there is a significant amount of lint, use a vacuum and small brush to get the worst.

Then wipe all this area with a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit, especially if there appears to be fine dirty deposits....oil and lint combine to conspire against you.

If it seems likely that you ......really ....do .....actually .....need .....to adjust the bobbin case, first check there is no lint trapped in the metal spring where the thread is tensioned.

TOP LOADER:
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....

cc3f045.jpg...the other screw at one end is holding it all together, so beware....it is not a tragedy to undo the whole lot and clean it, but very gingerly and lay the bits out in sequence and orientation, or you risk tearing your hair out !

FRONT LOADER:
....this is a bobbin case from a front loading machine and works in a very similar fashion to the top loader with drop in bobbin, again, if you dismantle it, take care so you can put it all back properly.

1eade63.jpg
FINISHING UP
GETTING THE BALANCE RIGHT:
When you are certain there's no trapped lint in top tension or bobbin, set the top tension to 4 and the bobbin tension to a point where you just begin to feel resistance.

Try using good quality thread of contrasting colours so you can more easily spot the changes. ie a different colour top and bottom just for the test.

Set your zigzag to one width less than maximum (eg. 5 of 6 ...or... 4 of 5 etc) and sew a sample for a few inches and check the result.... adjust the bobbin tension screw very little at a time, perhaps 1/16 of a turn.

You may find you are playing with this balance for some little while and if you are putting the needleplate on and off each time begin to think it cannot be correct to do this.....BUT....it is, and eventually, you do get a "feel" for the correct tension and then it happens quite quickly.....as a user you won't be doing it very often unless there is lint built up (or are there small hands at work around the house !?!?!)

OTHER ISSUES:
If you live near the ocean as we do, salt air can play havoc with metalwork inside and out, so to help minimise this, keep a few small packets of dessicant (silica gel) in your machine case....no case ? then make some sort of cover ! Same applies in any damp or humid environment, keep your machine dry and dust free.

Budget for a proper full service every couple of years (more often if heavily used) and if you don't use your machine for a few years, be aware that old oil will dry out and combining with dust and form a "clag" like glue (another reason for some sort of cover, even a teatowel !)

FINALLY, A WORD ON THREAD:
If it is worth spending the time, energy and money on making something that you would like to give lasting enjoyment......use quality thread, .......it may seem to cost a little more at the time, but the results, ease of use and added longevity will be worth the extra, and as a bonus, your tension troubles may be fewer and further between, because there is a more consistant diameter with good thread, and less compensating to be done by your tension plates and less thread breaks !

If you need any more help with this, just post back here, or, drop a line through the "Contact Us" page at www.bargainbox.com.au

Posted on Feb 23, 2008

  • 2 Answers

SOURCE: Brother Industrial Machine Tension

This is an answer to another person with a similar complaint. Try the suggestion below, it may fix the problem.

From your description it appears that you have tried tension settings on the upper tension control adjustment knob without success.
Check that the bobin tension is adjusted correctly by taking out the bobin complete with the spool.
Pull the cotton thread and it should be a smooth light pressure if the tension is correct. If it is tight to pull or pulls freely then adjust the tension screw which is found on the outside of the bobbin. The screw is very small and requires a minature size screwdriver. The adjustment will only be a slight turn of the screw one way or the other to obtain the correct tension(depending if it was loose or tight).
Once this is set reinstall the bobin and tread up the machine, hopefully with the upper tension set at approx."2" the machine will sew correctly.

Posted on Nov 30, 2008

  • 69 Answers

SOURCE: Brother vx790, my stitches are reversed ( top is on botom & bottom is on top )

It sounds like your tensions are out of adjustment. Your upper tension should be between 3-5 and make sure the tension in your bobbin case is not too tight as well. Pull the thread through the bobbin case and make sure it comes out with a small amount of resistance. If no resistance, tighten the tension just a bit, if too much resistance, loosen it just a small bit at a time.

Posted on Feb 12, 2009

  • 1 Answer

SOURCE: Brother LS-2125 Upper Thread Snapping

I had the same problem and it was so frustrating! It was happening to me because I wasn't using the right size needle. Go up a couple of needle sizes and see if that helps.

Posted on Mar 09, 2009

kent581
  • 87 Answers

SOURCE: I have the Brother ls2125i and LOVE the

Here are some things to try:
Big loops are actually easier to solve usually. 1st know this: Loops on bottom means the top is too loose or the bottom is too tight. With loops that big its probably the top is too loose. 1st look in tension disks, there is likely a chunk of thread in there. A toothpick is handy to dig it out (the flat kind) 2nd make sure that the thread is getting between the disks when threaded. 3rd Make sure the thread is in the take up lever (the thing that moves up and down in front and not the needle bar or any part of the needle bar.) If neither, then the bobbin case could have a burr on it and the thread is hanging on that burr. Also the bobbin case may be in wrong. I hope this helps
Tension:
If the thread is loose on the bottom of the fabric, it's actually the top thread is too loose. Think of 2 little elves playing tug of war in your machine, one on top and one underneath. If you have loops on bottom, the top needs to pull harder (tighten top tension
Thread test
Test your thread quality to start, thread your machine and LIFT the presser foot (this opens the tension disks). Pull your top thread straight back. If you feel no tension no matter how much thread you pull, your thread is good. If that your machine passes that test, we can go to step 2. If not, try different spool of thread, do the same test until you get a smooth pull (tip: always check your thread this way when you thread your machine)
Step 2:
Pull on your threaded bobbin thread while it’s in the machine. Does it pull smooth and even? If so, go to step 3. If not, try a new bobbin (bobbins get bent or distorted if wound too tight).
Clean thoroughly in the hook and bobbin case area and oil 1-2 drop is all.
Kent

Posted on Mar 22, 2009

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1 Answer

What is the tension settings for normal over locking with the Elna 4de


First of all ensure that the serger is threaded correctly.

The two setting which you mention are really a 'range' for an 'average' setting.

Using 'average' fabric such as a medium weight cotton, flannel, etc.; set each of the tensions in the middle of the range and test the stitch. There may be minor adjustment required to get a perfect stitch.

Once you have stitched that first sample, here are some possible minor adjustments required:
1. Tear-drop shaped loops on the underside: Check that the thread is firmly set in the tension dial by giving the needle threads a good snug pull above the tension dials while the presser foot is down.

2. The zig-zag like thread on top should meet the ziz-zag like thread on the underside right on the fabric cut edge. If the meeting happens on top: reduce the upper looper tension slightly and increase the lower looper tension slightly ... test sew and recheck. If the meeting is on the underside: increase the upper looper tension slightly and decrease the lower looper tension slightly ... test sew and recheck.

3. If the meeting does happen along the fabric cut edge but the meeting is hanging beyond the fabric cut edge: increase the blade position (that is, move the blade to the right). If the fabric is creating a ridge or tunnel; move the blade to the left slightly.

Please let me know if this has solved your problem. Otherwise let me know what is happening with the stitch quality.

Sep 16, 2014 | Sewing Machines

1 Answer

The cotton on my bernina 801 keeps jamming


Loops on bottom indicate a top thread tension problem.

Make sure needle is the correct size and not bent or broken
Make sure it is threaded properly with the lever UP.

Do a test stitch.

If it still loops below... tighten the top tension and do another test stitch... keep doing this until the stitch is balanced.

BTW... always grasp and hold both threads when starting a seam.

Jul 30, 2012 | Sewing Machines

1 Answer

When sewing, the top stitch and thread is fine. when you look under it is a huge mess of upper thread. I have cleaned shuttle, fixed the bobbin, replaced bobbin and upper thread. A number of times.


Recheck the tension on the top thread. Test it before you put it through the needle to see if there's any tension. It should pull but with some resistance. Also check the needle and make sure it is the right type for the fabric and not bent etc.

Looping on the underside of the stitch is from the upper thread, usually tension problem. But do check the bobbin tension and make sure it isn't too tight, though that's not usually the problem you're describing. The two tensions need to work together in order to get a nice, flat (not puckered or loopy) stitch.

One last thing you might check too, though again this wouldn't typically be the problem - is the dogfeed moving the material along under the presser foot correctly?

Most of the time the problem you're describing is due to not enough tension on the upper thread.

May 31, 2011 | Brother Sewing Machines

1 Answer

I am sewing a cotton piece of fabric for a dress and i do not know how to set the tension for cotton


The tension for cotton is set the same way tension is set for any fabric:

1. The thread should pull freely with a small resistance before/after it goes through the needle, on many machines that's half way on the tension adjustment.

2. The bobbin thread when dangled by the thread with the bobbin inside the case should drop down a bit when slightly flicking your wrist like you do with a yo-yo. If it reels out to the floor the tension is too loose. If it doesn't drop at all it is too tight.

3. Now make sure you use the right type of needle. For cotton you want a "sharp" and for reg. weight cotton about a size 10 maybe 12.

Now take a piece of strap cotton material like you're going to sew a seem and sew with a wide zig zag. Example the top side and then the bottom. They should appear identical, flat with needle holes at each side where the thread disappears to the other side. You should see no loop where the threads over lap each other and the material should not be puckering in the middle.

If that is not what you see then think this way:

The TOP side of the stitch is effected by the BOTTOM thread. the bobbin tension.
The BOTTOM side of the stitch is effected by the TOP /needle tension.

Adjust the responding tensions until the stitch looks the same on both sides. Now you are ready to sew your cotton! :)

Apr 26, 2011 | White Sewing Sewing Machines

1 Answer

My zig zag stitch is puckering fabric. I even went to the multiple zig zag, same problem. I decreased tension. What should I have double. Note: this was on single layer, along edge of fabric so I could...


Check the bobbin tension too. It could be too tight. Make sure you are using the right size needle for the material as well. Sheer, thin fabric needs a smaller needle, thicker material requires bigger needles. Bobbin tension is the typical problem as most think to adjust the top tension but don't check the bobbin tension.

Is your quilt peices cotton? Cotton shouldn't cause as much trouble sewing along the edge but don't use too long of a stitch length else it will seem to gather up. Puckering side to side however is a tension problem usually. With sheerer fabrics that cause a problem sometimes you can put thin paper underneath, sew through both and then pull the paper off after sewing. (thin like the iron on type interfacing type fabric but like paper).

Mar 25, 2011 | Janome Sewing Machines

1 Answer

The thread on the top side of my material starts looping after 4-5 stitches. I've tried every number of thread tension, and even on 0 it loops on the right side of the material, not on the back.


Check the tension on your bobbin thread. When you hold it by the thread and let it dangle does it just drop down without any resistance at all? If so then you need to tighten it a bit. If the bobbin thread is too loose it can not pull the top thread down enough thus puts the loops on the top side of the stitch.

Feb 25, 2011 | Brother LS2125i Sewing Machine

1 Answer

While sewing the thread will break


Take a small piece of material and take several practice runs of a straight stitch. If the cotton breaks try adjusting the small tension wheel (numbered 1234 etc) . To decrease tension turn to a lower number. Adust as necessary until you get a satisfactory stitch.

Jan 30, 2011 | Brother SE350 Mechanical Sewing Machine

1 Answer

Appearence of loop and no zigzag stich on ls-2125i brother


The loopy stitching is usually do to threading the machine with the presser foot down.

Raise the presser foot and re-thread or pull about 8" of thread through the needle and see if the loopy stitches go away.

This may also be the issue with the zig-zag stitch.

When the machine is threaded with the presser foot down, the tension is closed and the thread cannot enter as it should for the tension to control the flow of thread to the needle. The thread then feeds too fast and the stitching is distorted.

Feb 17, 2010 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Tension problems


Hi, check that the thread tension knob makes only one rotation from 0 to 9 and stops at each ends, see that it moves in and out as you increase or decrease the tention, see that the small tension wire to the left of the knob is still in place, in any of these fail you need to replace/repair that assembly.

Aug 11, 2009 | Singer 7462 Mechanical Sewing Machine

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I have a Huskystar C10. I cannot adjust the tension properly since having a sewing jam-up while I was satin stitching. The top thread leaves loops on the bottom on the fabric and the bobbin (which is a...


There is one way out. Give the sewing m/c a thorough servicing job, Clear all the pieces of cloth/fabric/threads, etc Remove the bobbin and load afresh. Clear out the toothed sliders which pulls the cloth while stitching. the thread being used for stitching passes a sort of loop, the tension being controlled by how much the pressure the spring can exert such that depending on the material being stitched. Specially after stitching satin, which is tricky material to stitch in a sewing m/c since the cloth is slippery. Also clear sewing jam and the metal teeth like rack which pushes the cloth for the next stitch to start. This area if cleaned up properly and a little bit of oiling on the spring loader and the spindle assembly which moves up & down...............................sudeep

Aug 07, 2009 | Sewing Machines

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