Question about Brother LS-2125 Mechanical Sewing Machine

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I was given Brother Sewing Machine with the serial #C21113145 on the plate. I don't have a manual. The tension wheel will not move (adjust). I'd like to know if there's something I'm missing adjusting the tension or if I can get a manual.

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Hey if you need a new manual go to this link and dont forget to put this code (150t) so you can get $1.50 discount. Hope this help.. By the way the manual cost only $10. BYE

Posted on Jul 29, 2009

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I have gone through 3 needles and I've never had an issue before. The machine ate my fabric and I pulled it out (big mistake) and now my needles keep breaking.

1. Put one drop of oil on race. The bobbin case has two screws to adjust to keep it from moving either clockwise or counter clockwise. You will need to adjust these. It is tricky but once in the right position it will only move slightly. Give just enough free movement to allow thread to fit through.
2. Adjust the bobbin tension. The screw on the bobbin will need to be adjusted so it has a tension which equals four on the upper tension. This is a little tricky but if you're off a little you can adjust the upper tension to correct this. NOTE: You are trying to adjust the upper tension and the bobbin tension to be equal. This is similar to a tug of war.
3. Try to turn the hand wheel. Watch to see if the needle thread will ride across the top of the bobbin. It should do this without the thread getting stuck. If it gets stuck you will need to adjust the bobbin case screws to allow a little more movement allowance.
4. Replace the needle.
5. If you still notice the needle striking something under the throat plate you will need to have your machine timed.



Jun 28, 2015 | Brother CS6000i Computerized Sewing...

1 Answer

Top tension with the brother Pe 770 embriodery machine

I had many problems with tension until I moved the thread spool to the back on an outside stand. Check the thread guide path for lint. If everything is good then read the manual about adjusting the tension.

Oct 29, 2012 | Brother PE770 Computerized Sewing Machine

1 Answer

Top thread don't look right when i pull it it comes out

try changing the needle
try rethread the top thread
use every thread guide
use the right thread & needle for the fabric
adjust the top thread tension just a little forward, if that doesn't help
(write down where the top tension was before you moved it)
if adjusting the top thread tension doesn't help put the tension back
where it was
clean under the needle plate & in the bobbin are for lint
here is a link for a free manual

it's also possible that the machine could be slightly out of time
& it needs to be checked

Sep 07, 2012 | Brother CS6000i Computerized Sewing...

1 Answer

When sewing hems and coming across a thick seam, the pressure foot seems to not allow the material to run through, keeping it stalled while the needle continues to pump into the material eventually...

I don't think you can adjust the feed pressure on this machine. I have the same machine and the same problem and my solution is the same as you've already mentioned - raise the foot and move the fabric by hand. I would do it by turning the wheel by hand until the seam is clear of the foot to prevent breaking a needle or sewing my fingers.

Feb 06, 2011 | Brother XL-2610

1 Answer

I have a Brother LS-1717 Sewing Machine, it was given to me, without the manual. My thread keeps jamming and the thread is lose on the fabric. Also I have these dials on the front and I can't figure out...

You really need a replacement manual and Brother is excellent about providing them. Go to if your machine was sold in the U.S. If not, you'll need to contact Brother International.

Loose thread and jams usually mean the tension needs adjusting. If the loose threads are on the underside of the fabric, it means that the tension on the top thread is too loose. Be sure to have the pressure foot down when you adjust the tension and only move the dial a tiny bit at a time. Also, when you begin sewing, hold the top and bobbin threads securely in your left hand for the first few stitches. That bit of tautness helps prevent 'birds nests'.

Hope this helps!


Aug 10, 2010 | Brother LS-1717 Mechanical Sewing Machine

1 Answer

I don't know how to adjust the tension on my brother cs-6000i.

It is the wheel on top of the machine near the thread guide.

I believe you will find more information on page 29 of the manual.

Mar 11, 2010 | Brother CS6000i Computerized Sewing...

2 Answers

Machine No. K1831(256) No.28 how do you set up the stop motion wheel to wind bobbins. It either winds bobbins whilst sewing or just free wheels. I think there must be a way of adjusting this action....

Oct 26, 2008 | Singer 7462 Mechanical Sewing Machine

1 Answer

How to adjust the thread

Here is the user manual from which I will quote
Page 19 has how to adjust the tension of the thread
There should be dial to which you can turn to adjust up or down your tension , use a piece of scrap fabric to ensure it is set at the right tension that you need ..
The upper thread tenison wheel is located on the left side of the machine above the needle ( top/front of machine shown on their diagram of the machine as #5 )

Sep 17, 2008 | Brother XR-31 Mechanical Sewing Machine

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