Question about Brother LS-2125 Mechanical Sewing Machine

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I'm having troubles with my brother sewing machine

The stitching is perfect on the top, but very loose on the bottom, please help!

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  • jill May 11, 2010

    is the bobbin in the casing to unwind the correct direction?  what is loose on the bottom?  the top thread or the bobbin thread?



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Your tension is loose on top. Adjust your tension dial up a little at a time until you have a desirable stitch. Before adjusting the tension, you may want to look into the tension and see if there are any threads caught between the disc. If so remove them. Another common problem is that your machine is not threaded properly, make sure the pressure foot is in the up position when threading and if needed consult your manual for the proper threading diagram.

Posted on Feb 07, 2009


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When stitching on my Juki 1541 the top stitching is perfect but the stitching from the bobbin is loose. how to fix, I did try sighing the screw on the bobbing , did not work please help!!!!!!!

When the bobbin stitching is off the problem is usually with the top thread. Unthread and rethread the machine making sure it is threaded correctly and is securely in the tension disk. If you still have trouble try using a new needle.

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I am having trouble with stitches bottom stitches are coming out loose , my model is vx 1435

do you have a manual for the machine?
try adjusting the top thread tension one number or letter higher
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The stitches on my brother 3125 sewing machines are loose. On the top and bottom. Ive tried to redo my stitching and nothing has worked . Please help !!!

Make sure presser foot UP position. Rethread making sure thread is taut so it can locate tension slots. Rethread needle making sure its up in the needle bar shaft--flat side BACK--thread goes through needle eye front to back. Tension: 4 Jimmy

Apr 04, 2012 | Brother LX3125 Sewing Machine

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How do I find out why my sewing machine isn't sewing right?

We can sew about 2 to 4 inches then the thread that goes through the needle snaps off & when you examine the back of the material the bottom stitch is loose. What is wrong?

Nov 14, 2011 | Brother XL-5500 Mechanical Sewing Machine

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The bottom stitch is very loose. I've tried tightening and loosening the screw and the problem remains...HELP!

The bottom stitch is affected by the TOP thread tension :) First go back and make sure your bobbin tension is correct since you adjusted it. It should drop slightly when held suspended by danging it by the thread. If it reels out to the floor it is too loose. If it doesn't drop at all it is too tight.

Now that you have that adjusted look at your top tension. If it is loopy on the bottom side of the stitch the TOP tension is too loose. Increase the top tension.

Now take some scrap material and set machine to a wide zig zag, medium length stitch and sew a bit. Compare the top and the bottom sides of the stitch. They should look identical. Remember the TOP side effects the bottom and the BOTTOM tension effects the top side. Adjust accordingly until they look identical with no loose threads or loops and no puckering (puckering means it's too tight).

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I cannot get the tension right on my 2600 Brother machine. I am stitching in the ditch with three layers of material. Can you please help?

Make sure you have the right size needle...not to small. Then do a simple seam through three layers (doesn't need to be a seam just sewing through 3 layers of scrap) using a wide zig zag stitch. Examine the stitch looking at both sides. Do they look even, identical?

Think in opposites, ie the bottom thread tension affects the stitch on the top side and the thread tension on top affects the stitch on the bottom side. If one side is loopy then the opposite side tension is too loose (or, sometimes that side's tension is too tight). Adjust until both sides are identical looking. Then try stitching in the ditch like you wanted to.

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I have the Brother 2600i sewing machine and am having problems with the blind hem stitch being too loose on the top & bottom. I currently have it on the 2 setting for stitch length, 4 for stitch width...

I would put my tension at 3, length at 2 and 3-5 for width. Make sure that your machine is actually on the blind hem stitch pattern, If this does not work, call Brother at 1-877-276-8437 and have them tell you where to take it, if they cannot guide you through it. I hope that you are under warranty, or that you can return it, if there is a mechanical problem.

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Top stitches look fine, bottom stitches loose and loopy

check your top thread tension, set to 3 or 4
if that doesn't help let me know

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Loose bottom stitch on brother se 350

Hi, general rule of thumb:: loops on the top, problem on the bottom.. Loops on the bottom, problem is on the top.. When threading your machine, stop just before you thread your needle, put the presser foot down. Try pulling the thread. If it pulls easily, the thread is not thru the tension wheel right. If it pulls hard, you got it right.

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