Question about Brother LS-2125 Mechanical Sewing Machine

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I have tried to adjust the tension but I still keep getting a puckered fabric and the top stitch looks like a straight line...HELP! I adjusted it all the way down to zero...and still it is not helping...even changed the thread....

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I think that you have the wrong needle size for your fabric, also if it is real thin, put some tissue paper between your fabric and face plate and see if that helps. But, be sure to use the right size needle and thread weight. If, you do not have your manual, go to brother-usa.com and download one for free. They also have a great customer service number, 1-877-276-8437. Good luck and hope your problem is solved so you can get back sewing.

Posted on Sep 15, 2010

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Posted on Jan 02, 2017

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SOURCE: I have recently bought Singer Quantum 9940 and I

1. Make sure your needle is correct for the fabric. Go buy some good needles in several sizes. You'll need a 90 for jeans, rounded points for fine fabrics... get a few sizes. Your manual should provided you with clues to the right needle for the fabrics. (BTW... there really is no such thing as a Universal Needle... toss it.)

2. Re-read your manual and carefully follow the instructions on threading the bobbin and the upper thread...

3. Check your tension on the upper thread... it is too loose for the application. The tension on the bottom thread is handled by a spring on your bobbin case or race. If you do not have that threaded properly you'll have problems. Same with the direction the bobbin turns... have in it backwards... problems.

Barring all these things... It might be time for a qualified Singer repair person to look at it. Sadly Singer has seriously lowered it's standards in the last 20 years.

Posted on Feb 06, 2011

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2 Answers

I am having trouble with my Singer sewing machine 367. I can't seem to get the tension right.


You really need to get a manual. Trying to figure out the problems is difficult if you are not an experienced sewer. There is a manual on eBay right now for your machine.

A little about tension. 95% of the time it is the top thread tension. It will be the thread on the bottom of the fabric affected. If the the thread on the top is loose it is the bobbin tension. Do not adjust both at the same time. Start with the top tension making small adjustments and then doing a test on scrap fabric.

Check to see if it is threaded correctly, without a manual it may not be obvious if it is or isn't. Check that the thread is between the tension discs correctly.

Jul 11, 2017 | Singer Sewing Machines

1 Answer

Singer model 2638 puckers fabric when sewing straight stitch. Have to manually keep fabric taut behind needle to get anything accomplished. Why does this occur and how can it be fixed?


If the fabric is puckering when stitching, usually it is because the tension is too tight. You may need to loosen both the top and bobbin tensions.

Another time the problem occurs is when sewing fine fabric (like chiffon). The fabric does not have enough body to lay flat, so it puckers. You can utilize a stabilizer to help give the fabric body (washaway or tearaway stabilizer, or even use light-weight paper such as adding machine tape or even toilet tissue). Sometimes some spray starch is enough to help it lay flat.

How to Prevent Puckering Sewing Machine

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0ahUKEwih76G2yuHNAhVBVWMKHV-1DiEQFgggMAE&url=http%3A%2F%2Fwww.amefird.com%2Fwp-content%2Fuploads%2F2010%2F01%2FMinimizing-Seam-Puckering-2-5-10.pdf&usg=AFQjCNF6q0Pk13ZU4Hb3o3RiAGBbL04l-A&cad=rja

http://www.beaconfabric.com/vindex.html?SelectingtheRightStabilizer.htm

http://www.coatsindustrial.com/en/information-hub/apparel-expertise/seam-puckering


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Jul 06, 2016 | Singer Sewing Machines

2 Answers

Need help with tension as thr stiches are puckering.


If the fabric is puckering when you sew, it is most likely because the thread tension is too tight. Make sure you are using a brand-new needle compatible with your fabric--using a 70 or 80 needle and a lighter weight thread may work better as a 90 or higher needle is big enough that it can stretch the fabric before penetrating it, causing puckering.. Puckering also occurs more frequently when sewing light-weight fabrics and may necessitate using a walking foot or a stabilizer to help give the fabric more body as it is stitched (wash-away stabilizer would probably be good when sewing washable fabrics). Another thing that may cause puckering is when the bobbin is wound at a fast speed. Slowing down when winding the bobbin will reduce the amount of stretch added to the bobbin thread. If it is stretched going onto the bobbin, it will shrink back up when it is stitched to your fabric. Also check whether your machine has a presser foot pressure adjustment. The pressure should be lighter when sewing finer fabrics, ie silk, and heavier when sewing thicker fabrics like wool or denim.

How to Prevent Your Sewing Machine from Puckering Fabric Howcast

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0ahUKEwjcuq2nkIPMAhXlxIMKHVgUAqUQFgg1MAU&url=http%3A%2F%2Fwww.amannusa.com%2Fpdf%2Fnahtkraeuslen_gb.pdf&usg=AFQjCNE-YAZ5WB1V7bFGptxZojumhoodMQ&cad=rja

Stitching is puckering on lightweight fabric SEWING IN GENERAL

All About Needles

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Apr 10, 2016 | Sewing Machines

1 Answer

How do I adjust the tension for straight sewing?


First, be sure you are using a brand-new needle and that the needle, thread, and fabric are compatible.
All About Needles

When you thread the upper thread, be sure the presser foot is ALWAYS RAISED so the thread will seat properly in the tension disk. Also, confirm that the machine thread pathway is correct.

Remember that when fabric types/weights are changed, the needle/thread should be changed accordingly. (Needles should be changed often to attain the best sewing experience and minimize unnecessary frustration.) The tension may also need to adjusted. Tension is not static. It should be adjusted to fit the project being sewn. Unless one continuously sews with the same fabric, thread, and needle type would the tension adjustment remain at the same setting, but machines do change over time so a tension setting that worked last year may not look the same this year.

The factory standard tension setting is the midway point between the high & low numbers. However, please understand that machines vary and that sometimes this standard setting may change with time and use. The midway point should only be the beginning point and is most likely suitable for medium-weight fabric. Also, usually the bobbin tension does not require frequent adjustments unless a particularly heavy- or light-weight thread is used in the bobbin--sometimes the bobbin tension will get out of whack requiring adjustment (consult the owner's manual or search the internet for instructions for adjusting bobbin tension). In the majority of cases, the tension adjustment is made to the top thread.

Test your straight stitch on your fabric (may be helpful to use a different color thread in the bobbin so it is easier to see any tension issues). If the bobbin thread is popping up to the top of the fabric, loosen the upper thread tension. If the upper thread is looping or showing on the bottom of the fabric, tighten the upper tension. Keep adjusting until the upper and bobbin threads meet in the middle of the fabric.

FWIW, the same process would be used for zig-zag stitching. Just make sure that the tension is not too tight or it will cause the fabric to pucker (or tunnel).

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Mar 07, 2016 | Sewing Machines

1 Answer

My stitch is set on 4 for length and tension is on the red lines touching. Yet it is gathering instead of straight stitch. Why?


Your tension is most likely too tight. Loosen the upper tension and retest.

Re-thread from the beginning. Make sure the presser foot is RAISED before threading the upper thread. This insures the tension disks are released and the thread will seat properly.

The ideal tension is when the upper thread and the bobbin thread meet in the middle of the fabric, but there should not be any puckering. Tension disks can eventually come out of adjustment so the red lines on your stitch tension may no longer be accurate. The tension will also need to change depending on the needle, thread, and fabric of the current project. Upper tension is not static. It needs to be changed to fit the project and a sewist should become comfortable with adjusting the tension for successful sewing.


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Nov 19, 2015 | Sewing Machines

2 Answers

How to adjust the bobbin tension.


According to the manual, you should not need to adjust the bobbin tension (and I located other sites which stated the bobbin tension cannot be adjusted on this machine). Apparently, all the tension adjustment is accomplished through the upper thread::
"EN Thread Tension Upper thread tension Basic thread tension setting: "4". (1) To increase the tension, turn the dial to the next number up. To reduce the tension, turn the dial to the next number down. A. Normal thread tension for straight stitch sewing. B. Thread tension too loose for straight stitch sewing. Turn dial to higher number. C. Thread tension too tight for straight stitch sewing. Turn dial to lower number. D. Normal thread tension for zig zag and decorative sewing. Correct thread tension is when a small amount of the upper thread appears on the bottom side of fabric. Lower thread tension The bobbin tension has been set correctly at the factory, so you do not need to adjust it. Please note: - Proper tension setting is important for strong seams. - There is no single tension setting appropriate for all stitch functions, thread or fabric. - A balanced tension (identical stitches both top and bottom) is usually only desirable for straight stitch construction sewing. - 90% of all sewing will be between "3" and "5". - For zig zag and decorative sewing stitch functions, thread tension should generally be less than for straight stitch sewing. - For all decorative sewing you will always obtain a nicer stitch and less fabric puckering when the upper thread appears on the bottom side of your fabric. 1 A B C 22 D"

Doing further research, I found this statement on a machine review site:
"After reading reviews online from where I've bought my drop-in bobbin machines, I think many of the negative reviews are due to the bobbin thread coming up without laying across the bobbin. It can cause the stitches to look very sloppy and no amount of tension adjusting can fix the stitches."

There are several machine review sites wherein 4423 owners stated their disappointment in the 4423's performance. Some said the machine failed almost immediately and others said the machines developed problems when sewing heavy fabric.

Apr 26, 2015 | Singer 4423 Sewing Machine

2 Answers

I have a Singer


Which stitch are you using?

To check thread tension for straight stitches, use different colors of thread in your top thread and bobbin. If the top thread shows on the bottom of the fabric, turn the dial counter-clockwise (towards a lower number). If the bottom thread shows on the top, turn the dial clockwise. Do not adjust the tension too much (for example, go from 2 to 2.5 if increasing the tension) at a time; test another set of stitches. Alternatively, you can adjust the bobbin tension in the reverse directions. However, it's very easy to damage the set screw in the bobbin case so do this as a last resort. Since this is a vertical bobbin case, put the bobbin in and hold onto the thread. If the thread moves when you dangle the bobbin case, tighten the screw. Loosen the screw if the thread doesn't pull out of the bobbin when you hold the unit.

For zig-zag decorative stitches lower the tension until the puckering stops. Usually the top thread will show on the bottom of the fabric.

If the tension is not changing when you turn the dial, make sure that the presser foot is down. The sewing machine may need repair. The tension mechanism depends on a spring and that can break. See the Singer site for a parts breakdown and contact your Singer dealer for the parts.

If the top and bottom fabric are not moving at the same rate, you can get a different type of puckering. You may want to get an even feed foot if there are several layers of fabric.

The manual for the 3116 is available from Singer: http://www.singerco.com/uploads/download/438_3116.pdf .

I hope this helps.

Cindy Wells

Dec 08, 2011 | Singer 3116 Simple

2 Answers

I am sewing on 100%polyester silk and using a 65 needle and the tension is on 4.2, stitch length 2. The fabric keeps wrinkling. I've tried rethreading, checking the bobbin and changing the tension. Nothing...


There is a pressure adjustment for the presser foot.

This is usually on top of the machine, over the presser foot.

If it resembles a screw head on this model - a dab of nail polish or mark of a sharpie will help when you reset after sewing sheer fabrics.

If you move the adjustment to the left it will reduce the pressure and should also reduce the wrinkling.

Adjust and then test on a sample of the same fabric you will be sewing.

Be sure to re-set after sewing thin fabrics.

Refer to the manual or download a free one at Brother's website.

Feb 22, 2010 | Brother XL3750 Mechanical Sewing Machine

1 Answer

Singer 221-1 stitching is good on bottom but not on top


pucker is caused by too loose or, to tight adjustment of: the thread tensioners both the bobbin tensioner and, the needle tensioner need to be adjusted: to adjust the needle tensioner turn the side knob clockwise is tighter counterclockwise loosens; the bobbin tensioner is a tiny screw on the bobbin holder adjust both tensioners until your stich loops' both top and, bottom are tight but, the machine does not break the thread

Feb 16, 2009 | Singer Featherweight II 117

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