Question about Juki DDL-8700

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Thread knotting up at needle

It was sewing fine then all of a sudden the thread strted knotting up right at the needle, now i cannot get a tight stitch please help

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  • Juki Master
  • 7,365 Answers

My suggestion is to try different thread
check the tension
make sure there's no loose thread's caught up in the tension spring

Posted on Jul 29, 2010

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Posted on Jan 02, 2017

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2 Answers

I have juki 1541industrial machine . It started sewing upside down . Instead of nice stiching on top show side it on bottom. Any ideas


This is caused by the tension between the bobbin and needle threads being out of balance. If the knots between the stitches are on the bottom side, then you need to tighten your needle thread tension a little at a time until the knot is in middle of fabric. The reverse of this is if the knots are on the top, then either your bobbin tension is too loose or your needle thread tension is too tight. If this occurs, then loosen your needle thread a little at a time to see if knot goes down in middle of fabric. If it does not, then you need to increase the tension on your bobbin thread. This done by taking bobbin case out and tighten the small screw located in the middle of the spring on the side of the case. You only need a slight, steady pull on the bobbin thread - the more you put on the bobbin, the more you are going to have to put on the needle thread.

Feb 13, 2015 | Juki Sewing Machines

1 Answer

Sews 1/4" and then sews in place


1) remove upper and bottom threads. Try sew without threads.
Is fabric transported corectly?

NO:
- Drop feed dog button is OFF
- Dust under stitch plate
- Transporter malfunction (must be taken for a service to the BERNINA dealer)

YES:
- Upper or bottom thread jammed
- The upper thread tension is too tight.
- Wrong needle used (probably small ...)

Nov 20, 2013 | Bernina Bernette Deco 600

1 Answer

Needle thread knots up under fabric.


I have the same problem but i have not watched it. I does not seem that anyone wants to help us here, I am going to other sites until i find someone knowledgeable. apparently we are the smartest here at the moment ;)

Mar 31, 2013 | Sewing Machines

1 Answer

Top thread knots up and breaks on memory craft 8000


The top thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle
8. Try a different spool or cone of thread

Feb 18, 2013 | Janome Sewing Machines

1 Answer

Thread keeps breaking using husqvarna


try these suggestions
The needle thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle

Oct 30, 2012 | Husqvarna Sewing Machines

1 Answer

Can't set the tension on needle or bobbin to match


1. make sure your machine is threaded right.2. set the tension between 3 and 4 and play with the tension as you need it to adjust it.3. make sure the bobbin is threaded right.make sure to visit the site below; it has solutions to multiple problems and instructions how to thread the needle or bobbin. Good luck.htt://Fix Looping/Knotting Thread Fix Knotting/Bunching Thread Looping Bunching & Knotting Thread

Aug 03, 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

2 Answers

Bobbin continues to pose problem - knotting thread underside of fabric,


In 99% of all problems with "bird's nesting" or "knotting" it is an issue of the thread coming out of the take up lever (at threading guide #3) (from the spool; through the first thread guide at #1 down to #2 and up to # 3) when the thread comes out of the take up lever, the machine can not regulate the thread and it floods the machien with thread and wraps itself around the bobbin case. OR! Your tension is too loose. Raise it. Your machine should preform perfect at tension #4 unless you are using speciality threads or fabrics.

ALWAYS be in the habit of threading your machine with presser foot up so that while threading between paths 1 and 2 you are certain to have the thread pass throught the tension disks.

This will happen on a $50.00 machine or a $5,000 machine. The thread needs to be regulated.

USE GOOD THREAD!

Thanks,

Bonnie

Oct 25, 2008 | Kenmore Drop-In Bobbin 16231 Mechanical...

2 Answers

Needle won't grab bobbin thread


Check the position of the needle. Some machines have to have the needle in a certain way or they won't pick up the thread from the bobbin. Make sure the screw on the bobbin is tight but not to tight you may have to adjust it a few times to get it where it needs to be. Also make sure the bobbin is wound tight

Jun 17, 2008 | Kenmore 15208 Mechanical Sewing Machine

1 Answer

Sudden knotting under fabric


I have an Elna 2005 machine and had a similar but opposite problem whereby the tension up top was too tight - thread wouldn't pull smoothly. I found adjusting the feed dog lever slightly helped the stitches a lot, even though the needle tension up top is no better. Hope that helps! :-s

Jul 01, 2007 | Elna 2007 Mechanical Sewing Machine

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