Question about Sewing Machines

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How to adjust tension on a baby lock BL1556

Have tried loosening and tightening the tension and it will sew correctly for a brief time then it starts acting up again, leaving knots and loops on the bottom, breaking the thread or snarling up inside the machine, have tried new better thread, redoing bobbins and actually replacing the bobbin, replacing the needles etc. it is a constant battle to get it to do any repair work....again any solutions.

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  • 152 Answers

On your bobbin case there should be a tiny screw to adjust the tension of the bobbin thread. loosen that screw if heavy thread, or tighten for thinner thread. Play with it and try getting the correct tension that will continue.

Posted on Aug 05, 2017

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Posted on Jan 02, 2017

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  • 46 Answers

SOURCE: Thread loosens underneath intermittently. Stitches not consistent.

take it to a serviceman.

Posted on Oct 24, 2008

  • 30 Answers

SOURCE: Bottom (bobbin thread) makes loops

I don't have the same brand as yours, but on my machine there is a little screw on the bobbin case that you tighten to increase the bobbin tension. If you've got one, turn it 1/8 to 1/4 turn at a time.

Posted on Jan 24, 2009

  • 1 Answer

SOURCE: Thread in needle or bobbin keeps on breaking

The tread only breaks in the needle. what can i do . i don't get to sew anything . I tread the needle and get everything ready and start the machine and as quickly as that the tread is broken and the machine has not sewn at all.

Posted on Apr 07, 2009

Mimito7
  • 128 Answers

SOURCE: Top thread stitches correctly but bottom thread loops.

FYI---- Loops on the bottom-- problem is in the threading..
Loops on the top--- problem is with the bobbin.

Posted on Apr 19, 2009

  • 980 Answers

SOURCE: bobbin thread keeps breaking

Could well be that the bobbin tension is too tight, you should only just be able to pull the bottom thread through with slight resistence, if it is too tight slacken the screw on the bobbin case anti clockwise about a quarter of a turn at a time and test until you get it right,

Posted on Mar 07, 2010

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Regular sewing - I cannot get the thread tension correct. The bobbin seems too lose. How do I adjust? I've tried using the adjust key but I still get loose thread and puckered fabric.


Be sure to RAISE the presser foot BEFORE threading the upper thread. Set the upper tension to the mid-point which is generally the factory setting. Test. If thread is looping or bunching under the fabric, the upper tension needs to be tightened. If there is a problem above the fabric, try loosening the upper tension.

NOTE--sometimes the stitching problem is a result of the type of fabric being sewn. Most machines have a presser foot pressure setting that can be tightened or loosened to accommodate the fabric.

The tension is correct when the two threads meet in the middle of your fabric.

Sep 26, 2015 | Sewing Machines

4 Answers

Trying to sew zigzag but the bobbin thread is showing up on top


1. Try to loosen the top tension first.
2. If this doesn't work remove the bobbin and tighten the bobbin.
3. The purpose of this is to have the top and bottom tension even. This is similar to a tug of war. Whichever way is stronger is where the knot will be going. You want the knot in the middle of the fabric.
4. Test your top tension by leaving the foot up. Pull the thread through back and forth. It should be easy. If it isn't you will need to adjust the tension mechanism.

There is a tension set document added to help you.
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25699235-atjq0avj50lhlou12xfzw2eu-3-2.jpg

May 16, 2015 | Husqvarna Viking Emerald 116 Sewing...

1 Answer

Singer 2517c. When sewing, the bottom stitch is using to much thread, excessive amounts & the stitch isn't tight. I've tried all settings & have used a new bobbin. I'm at a loss......


Your description isn't very clear. When you say the "bottom stitch is using too much thread" Do you mean you see lots of loopy threads on top of the seam? Or do you mean you see loops on the bottom under the fabric? If your loops on the bottom, that means the top tension is too loose, you've not remembered to put the presser foot down, you have not threaded the top thread properly... Start by rethreading carefully with the presser foot UP. Then do a test stitch, remembering to put the presser foot down. If you still get loops underneath... tighten the tension.

If your loops are on the top of the fabric. loosen the top tension... then do a test seam... and if you still have loops loosen again and repeat. If you start to see loops on the bottom... tighten the tension a bit.

Good luck

Dec 30, 2012 | Sewing Machines

1 Answer

Machine starts to sew then upper thread knots up on underside of fabric


Do each of these steps one at a time and then test a seam on scrap fabric of the same type.

1. Make sure you thread the machine correctly with the feed dog lever in the up position. (this opens the tension discs, allowing the thread to seat correctly)

2. Make sure your needle and thread are the correct size for the fabric and that you've oriented the needle correctly and have it fully seated into the needle bar.

3. When beginning to sew a seam, always grasp both threads and hold them as you begin to sew.

4. Loops on the bottom of the fabric means that the upper tension is too loose. Tighten the upper tension a little at a time until loops disappear.

Good luck.

Sep 22, 2012 | Brother XL-2610

1 Answer

Whta is the answer to the curvy's thread/bobbin problems. super infuriating


If by "bobbin thread is usually too loose." you mean that you are seeing loopy stuff on top of your seam... then first you need to make sure your bobbin is un-spooling in the correct direction.

Also make sure that the tension spring on your bobbin case is not missing it's screw. Don't mess with the tension there yet... loosen your top tension first... sew on scrap fabric of the same type as your project. Loosen the top tension until you stop seeing loops on top of your seam. If you have loosened it enough to see loops on the bottom... tighten it a bit.

If all else fails make sure you re-thread the top thread with the pressure foot up position so you make sure you are getting the top thread in the tension discs and try test sewing again.

Jul 26, 2012 | Singer Curvy 8770 Electronic Sewing...

1 Answer

My singer curvy 8780 has a timing issue the needle is scraping on the bobbin casement and will not sew,cleaned and oiled, changed needle turned off and on. any suggestions?


Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Jun 06, 2011 | Singer Curvy 8770 Electronic Sewing...

1 Answer

Keeps skipping stitches and knots thread


Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Jun 06, 2011 | White Sewing 2037 Mechanical Sewing...

1 Answer

I cannot get the bobbin to wind on my Model 1260 Euro-Pro. It was working fine the last time I used it. Any ideas?


Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Jun 05, 2011 | Euro-Pro 1260DX Mechanical Sewing Machine

1 Answer

I am trying to make a rag blanket and the tension on my machine loops on the underside. I am about ready to throw it in the ditch. How do you fix the tension on a 9410 singer machine?


How to fix the tension on 'any' sewing machine. I may know how (family in the sewing business for 50 years-all now retired).

To begin with:
1) Put in a new needle;
2) Re-thread the top thread;
3) Lower the foot;
4) If the needle threads from front to back (or r. side to l. side); begin pulling the thread through the needle in the direction it threads, while slightly tightening the top tension knob, wheel, or other tightener. The tension on the top thread should bend the needle quite a bit, without breaking it (for cotton material sewing). If you're sewing a lighter fabric, the top tension should be slightly looser;
5) Once you have the top tension adjusted, re-thread the bobbin case, with the thread coming to you, out of the bobbin, having the thread escapement on the 'top,' while the bobbin case is in your right hand, and the bobbin is visible on the left side. Your instruction book may say the opposite way, but this is really the correct way to do it, as the new threads have many knots in them, and the bobbin case will stay correctly threaded doing it this way; next,
6) loosen the little screw on the flat spring, that presses against the thread on the thread escapement of the bobbin (if it is currently tight);
7) If the thread is easily pulled through the thread escapement, slightly tighten the tread, so a firm pull is needed to bring the thread out of the bobbin case. Not to tight though (or you will get loops on the bottom of your seam. You may have to tighten a little, or loosen a little. The 'knot' of each stitch should be in the middle of the cloth. If the bottom tension is too tight, the knot will be on the bottom; if it's too loose, it will be on the top. When it's just right, it will be in the middle;
8) When you change weights and types of fabrics, you may have to re-adjust your tensions; but, the process is the same.

Just remember: Always begin with a new needle, and always 're-thread' your machine.

I hope this helps.

P.S. My father set up many of the Viking dealers on the East side of the Mississippi. I worked in the business all the time I was going to school, and a couple of years after the service (early 60's). I used to 'dream' about sewing machines, and finally got out of the business, but I still fix machines for my family.

Good Sewing, and
God's Blessings,

J. W. Stevens

Nov 03, 2010 | Singer 7442 Mechanical Sewing Machine

1 Answer

Looping underneath


I watched a 'You Tube' demo that showed ........if you loosen or tighten the very small screw at the base of the bobbin this gives you the correct tension & stops the looping under the fabric........I didn't even know this screw existed ! It is trial & era at first re the correct tension but you do get there.... the art is to do it in small mini stages.....like you hardly move it ! Thanks to 'You Tube' I can now get on and finish my drapes !

Nov 23, 2009 | Riccar R651 Mechanical Sewing Machine

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