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The thread is not tight. Very loose and loopy. Why is this?

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  • Sewing Machines Master
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Remove the top thread from the machine.
ALWAYS RAISE the presser foot and rethread from the beginning.
Verify the thread path is correct.
Set the top tension to the midway point (and tweak it for your particular machine).

Posted on May 06, 2017

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1 Answer

Why does the bottom tread come out loose and loopy


First, check the stitching to verify that it is in fact the bobbin thread that is loose & loopy. Usually, loopy thread under the fabric is the upper thread--which, if that is the case, is an indication it is either threaded incorrectly or the upper tension is too loose.

Make sure you are using a brand-new needle.
Always RAISE the presser foot and then thread the upper thread making sure that every guide and the correct path is followed.

Set the upper tension to the midway point between high & low number and re-test the stitching. Re-adjust as needed. The tension is correct when both upper and bobbin threads meet in the middle of the fabric.

Understanding Thread Tension Threads

If it is in fact the bobbin thread causing looping, it could be that the bobbin case is not threaded properly or the tension is way off.

Liz Kettle adjusting your bobbin case tension 1 wmv

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Apr 11, 2016 | Sewing Machines

1 Answer

What would a typical tension number be for a cotton fabric? mine is loopy or tight right now


you didn't mention the name and model number of the sewing machine or serger... is the loopy thread on top or bottom? when is the thread tight? what type of cotton fabric,, solid cotton--polyster cotton? normally mine stays on 4 or 5 --depends on fabric I'm sewing..

Dec 15, 2014 | Sewing Machines

1 Answer

How do I know where the tension needs to be on my machine? I thread it and put the presser foot down. I pull on the thread and it keeps coming out for a few seconds, then it will slightly bend the...


Tension is more a try it til you get t correct thing. Different types/strength threads require different tension, and there is a learning curve involved
We always start in the middle of the range with a thread we have not used before, if it is to tight it will break and if to loose the stitching gets loopy so we adjust.
Hope that helps some.

Mar 02, 2014 | Singer 7256 Sewing Machine

1 Answer

I have a Pfaff 7550 that has tension problems. The bobbin doesn't seem to be coming through and the top thread is all loose and loopy. I have tried everything I know and still it is not fixed....h


How are you threading the machine? Is it with the foot in the up position? If you "floss" your upper tension discs with some sturdy fairly rough fabrick like linen. The disc sometimes get clogged up with lint, thread, wax from the tread... and prevent them from providing proper tension.

good luck.

Oct 01, 2012 | Sewing Machines

1 Answer

Brother cs-6000 will not sew, the top thread go through and tangles on back, and the bobbin thread is a straight line and can be easily pulled out, please help, trying to make kids school clothes


Hi:

Ok... so try to remember that loopy stuff on top means the bobbin tension is too loose (or the top tension is too tight...)

Loopy stuff on bottom, means the top tension is too loose. (or it's not threaded right)

Now. Get some scrap of the same material. Loosen that bobbin back to where it was. RETHREAD the top, with the foot in the UP position.

Place your scrap under the foot, and sew. still have problem? clip your threads and try again only this time hold the top and bottom threads off to the side as you begin to sew. How did that do?

Adjust the top tension to the point where you start seeing the bobbin thread come up in loops to the top... then back off until the disappear.

Now... be sure you have the correct thread and needle for your fabric. A lot of problem are caused by not having the proper needle and thread.

Jul 09, 2012 | Brother CS-6000

1 Answer

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).

May 03, 2011 | Brother LX3125 Sewing Machine

1 Answer

The thread underneath when sewing is too loosed


Usually thread too loose on the bottom is caused by the upper tension being too loose. The top and bottom tensions work together with the top thread making the underside of the stitch seem too taunt or too loose and the bobbin thread causing the top side of the stitch to be loopy or too tight. Select a large zig zag stick and sew a couple of inches. Then examine the stitch. It should look identical on both sides. Look to see which side is drawn too tight, the zig zag being smaller on that side with threads from the bottom threads pulled through. Then adjust the two tensions so that they make a uniform, identical stitch.

Also, when the bobbin tension is right you can hold the bobbin dangling by the thread and it won't spool out to the floor but will let loose a bit with a slight flick of the wrist. Too loose it will just spool out. Too tight and it won't drop at all. When you get that set right then do the above zig zag test to see where the top tension should be set.

Mar 02, 2011 | Sewing Machines

1 Answer

Brother MB 2600


You should not have to adjust the bottom tension when using sewing thread.

There is a tiny screw on the side of the bobbin case - left/loose; right/tight.

Mark the screw head slot and edge of the bobbin case with nail polish or sharpie so you know where you started.

If you are having a stitching problem that appears to be loose bobbin thread, it may be that the machine was threaded with the presser foot down.

Always thread a sewing machine with the presser foot up.

When the presser foot is down when threading, the thread cannot enter the tension control and you get loose, loopy stitching.

Feb 24, 2010 | Brother XL-2600I

2 Answers

Tension problem


Set the top tension as recommended by the mfg - this is usually between 3 - 6.

Now re-thread the machine with the presser foot up and see if this doesn't eliminated the loopy stitches.

What appears to be an issue with the bobbin may actually be the top thread was not seated into the tension during threading and the tension cannot control the flow of thread to the needle and you get a loopy stitch.

Keep the bobbin case clean as built-up lint can cause stitching problems.

Feb 20, 2010 | Brother LS-2125 Mechanical Sewing Machine

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