Question about Brother LS-2125 Mechanical Sewing Machine

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Just wondering how do you set the tension for the bobbin?

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Page 21 Of The Owners Manual Download able Here

Decrease the thread tension by turning the dial
to a lower number. If the result is still not satisfactory,
then adjust the bobbin thread as explained below.

Increase the tension in the bobbin by turning the screw with a small screwdriver in a clockwise direction. However, do not turn the
screw more than one full turn.
Remember to return the screw to its original setting before
starting your next project.

Posted on Jan 08, 2009


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Related Questions:

1 Answer

Bobbin thread showing on top of quilt. how do I adjust tension?

Loosen your top tension. But, I usually have to tighten the bobbin tension too for quilting. That's why I have 2 bobbin cases. One is set for standard sewing and the other has the tension set for quilting...

Bobbin Tension How and Why Tension is Adjusted

Sep 06, 2017 | Sewing Machines

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Try sewing but bottom thread on fabric is crumpING UP

needle thread tension is not adjusted up properly tighten the setting until you have resistance when you pull the thread to thread the needle

Oct 02, 2016 | Sewing Machines

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I have a Bernina 145 S activa and I can't get my satin stitch to work , it brings the bobbin thread to the top , what can I do ?

Do you use stabilizer when you are satin stitching? I had a teacher who also hooped the fabric with a spring-loaded embroidery hoop (turned upside-down under the presser foot so the fabric is flat against the needle plate) that would keep the fabric taut.

It is not uncommon for bobbin thread to rise to the top when doing embroidery, satin stitch, etc., especially if you are using lighter-weight thread than usual. You would normally loosen the upper tension so the upper thread will sink into the fabric. However, if loosened upper tension is not doing enough, you may need to adjust bobbin tension when doing embroidery, applique... You might try tightening the bobbin tension just a smidgen to get the bobbin thread to stay below the fabric. Be sure to mark the bobbin case before making any adjustments so you can return it to the original setting when finished with the satin stitch. (If you do a lot of satin stitch or applique, etc., you may want to invest in a separate bobbin case that is set up only for doing that kind of work--saves having to alter the bobbin tension frequently.)

Sewing Perfect Satin Stitch Wildly Wonderful Wearables Patterns Notions...

Mar 16, 2016 | Bernina Sewing Machines

1 Answer

The tension will not stay set . It sews great and then suddenly starts looping!! Like carpet!!and no bobbin shows through on back side at all help!!!

Ewww! Wondering if the tension mechanism has gone haywire.

First, change the needle. (Is the thread still in the correct path or has it "jumped" out of place? If so, try slowing down the machine.) Remove the thread. RAISE the presser foot to insure the thread seats properly in the tension disk and rethread from the beginning. Check that the bobbin is threaded properly. Check the tension setting and retest.

If it is still malfunctioning, it may need service.

Mar 09, 2016 | Janome MB4 Four Needle Embroidery Machine

1 Answer

How do I set bobbin tension?

Generally bobbin tension is the last thing to try to adjust on your machine. Most sewists adjust the bobbin tension ONLY if they are using very lightweight or very heavyweight thread in the bobbin. Most sewists will advise to make all possible adjustments to the top tension before tackling the bobbin tension to resolve issues.

Try searching YouTube videos or this may be helpful:

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Setting the Bobbin Tension on your sewing machine

Liz Kettle adjusting your bobbin case tension 1 wmv

How to fix Tension Don Panic


Sep 27, 2015 | Janome Memory Craft 3000

1 Answer

Machine is 30+ yrs old and the tensions settings are ALL screwed up so it won't sew even tight stiches...need help setting all (3) tension dials...please help me!

Real Important: The objective is to even the top and bobbin tensions equally.
1. Remove bobbin case. Put bobbin in (rotating counterclockwise).
2. Put thread under the tension plate. Let the bobbin hang from finger and bob up and down lightly.
3. Adjust tension. The bobbin should extend one inch every time it is bobbed.
4. Put one drop of oil on race the bobbin case sets on top of. Replace the bobbin case and bobbin.
5. With the pressure foot up thread the top and give little tugs as you do this. There should be no snags or resistance. Make sure the thread goes in between the tension disc.
6. Now, put pressure foot down. Give a little tug to see if there is a resistance. Set the tension to four is a good start.
7. Try a piece of rag to sew. Set the tension on top to adjust for a perfect stitch.

Mar 04, 2015 | Sewing Machines

1 Answer

1957 Montgomery Ward Automatic Zig Zag machine...Tension is completely out of sink. Top thread cannot feed through the tension track properly and breaks when I try to sew. How can I readjust the setting. ...

Bobbin with right diameter with or without holes. The bobbin has to sit below the top of the bobbin case when it is inserted. Make sure it rotates counter clockwise when installed. If there is a peg in the center of the bobbin case then make sure the bobbin hole is big enough to rotate easily.

1. Top tension approximately four. Get a feel for this pull on your finger.
2. Now-Bobbin case has a small screw adjustment; on left probably. Adjust this to be set equally with the top tension set at four. To do this:
a. Feed thread through the spring area while the bobbin is installed.
b. Adjust pressure of screw until it is equal to the top tension set at four.
The machine can now be operated.
If the thread knot is under the fabric then tighten the top thread. Do the opposite adjustment if the knot is above the fabric. It should be in the center.

May 28, 2017 | Sewing Machines

1 Answer

Tension underside looks good, but top side the bobbin thread show

sometimes when you reset the top tension dont forget to reset the bobbin tension so try to tighten the bobbin tension

Nov 08, 2009 | Kenmore Sewing Machines

1 Answer

Cannot get tension balance correct

Try this. reomove thread and bobbin from machine.. Set thread tension to the middle number. Rethread machine carefully making sure the thread is thru the tension wheel. Replace bobbin making sure that thread is thru it's tensioner.
Rule of thumb. Loops on the bottom, problem is on the top. Loops on the top, problem is with the bobbin.

Apr 16, 2009 | Consew 199R-1A Sewing Machine

1 Answer

Tension problems

Hi bobbin....Because this machine is still unfamiliar to you, be certain that your upper thread is indeed completely threaded into and between the upper tension discs. Typically, raising the Presser Foot disengages applied tension upon the tension discs. It's quite possible that the lever which disengages your upper tension discs has slipped, and is no longer allowing the thread to freely position itself properly between discs. You may also firmly grasp the thread just before the discs, and firmly pulling with your other hand, thereby ensuring that the thread is completely within the discs. If those initial steps have not remedied your situation, examine your bobbin case, and ensure that the flat metal spring has not "cracked", paying particular attention the end where the thread exits the bobbin case under the spring. If the spring appears whole to you, using a screwdriver, in a counter-clockwise direction, turn the set-screw which fastens the spring to your bobbin case 1/5 rotation, and rethread. Set your upper tension to 4, and test sew using a straight stitch with medium stitch length. The knot after each stitch should appear to be in the center of your fabric. If the knot is still well below the center, loosen the bobbin case spring set screw by another 1/5 turn and repeat your test. If you must, you can repeat the process ONE more time, but no more. Remember, the set screw that secures the spring is very short, with little room for error. ****I recommend that you place a towel directly under the bobbin case prior to turning the screw, which will catch the screw and or spring for easy retrieval should you unintentionally dislodge them.....good luck my friend

Jul 18, 2007 | Simplicity Performer S110 Mechanical...

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