Question about Juki MO-654DE Mechanical Sewing Machine

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My overlocker thread tension is not correct how do I adjust it Juki Mo634de threads are looping to loose

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EBAY ITEM 160454752052

Posted on Jul 11, 2010

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Threading diagram needed for the looping needles


There are quite a few pictures of threading diagrams on the internet. Just perform a search for the make + model + the word "threading."

Be sure to follow the threading order specified in your owner's manual. If the order is not followed accurately, the machine will most likely not work properly. Also, be sure to RAISE the presser foot BEFORE threading. While threading each thread, grasp the thread with one hand between the thread tree and the tension disk and grasp the thread below the tension disk with the other hand and gently tug the thread to make sure it has seated in the tension disk. With most sergers, the lower looper thread MUST drape over the top of the upper looper in its final threading process Before being pulled under the presser foot.

Juki MO 816 threading Google Search

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwiOt_7mqbHKAhVK52MKHc5XB5MQFggdMAA&url=http%3A%2F%2Fwww.raichert.com%2Fadobe%2FMO804-12-16%2520Inst.pdf&usg=AFQjCNH1vfonoEQ29McTsOItvQoW8ECZag&cad=rja

If any either looper thread breaks or comes unthreaded, it is the best advice to unthread all the looper threads and re-thread from the BEGINNING. Just bite the bullet and do it. It will save a lot of frustration.

Jan 17, 2016 | Juki Sewing Machines

1 Answer

Juki DDL 8500: Bobbin thread is not coming up to the top side and the top thread is looping on the underside. Bobbin thread slides right out, and I've had no luck adjusting the top thread tension.


What thread are you using and what are you sewing? I'm assuming the machine is stitching correctly and it is just a tension issue. I would test each thread seperatly by hand and see if one thread is too tight or too loose. Thread on the bottom usually mean the top thread is too loose however it could by the bobbin is too tight. It could also indicate a slight timing issue or a burr on the hook. Is the thread shredding or getting damaged?

May 02, 2015 | Juki Sewing Machines

2 Answers

I have a brand new Juki MO-50e and the threads are loose on the back of the fabric, how do I fix this?


  1. . re-thread your machine with a rainbow of colors. (important that you remove the existing threads if you are not sure it is threaded properly.) make sure you are lifting the presser foot while rethreading.
  2. Sew a good 6 inches.
  3. Look to see which threads are the offenders and tighten the co-responding tension knobs a little.
  4. Sew another 6 inches. Examine the result. Adjust tension again if needed.
  5. Work this way until you have the stitch balanced.
  6. Finally when your stitches are perfect. clip the threads at the spools in back. And tie on the coordinating colored thread for your fabric.
Get used to this procedure since it is common to have to adjust tensions when you change fabric. Good luck!

Oct 23, 2014 | Juki MO-644D Mechanical Sewing Machine

1 Answer

Janome 9200d overlocker


Serger thread breaks

1. Is the serger threaded correctly?

2. Is the needles inserted correctly?

3. Is one of the needles bent or damaged?

4. Is the tension adjusted too tightly?

5. Is the tension adjusted to accommodate thickness of thread being used?

6. Are you using inferior quality thread?

7. Is the thread feeding of the cone/spool freely?

8. Is the needle size correct for the type of fabric being used?

9. Are the needles being used the correct one for the serger?

Aug 18, 2013 | Sewing Machines

1 Answer

Correct threading for 4 th. Juki ind. overlocker


Overlockers and or Sergers are ALWAYS threaded the same way. Upper looper, Lower looper, right needle, left needle. If you have a model number for your Juki we might be able to find you more information.

The best way to figure out tension problems is to thread each thread in a different color so you can determine which thread is giving you problems.

These machines can be frustrating and EVERY time the thread breaks you MUST start the threading problem from the beginning... upper looper, lower looper, right needle left needle.

Aug 31, 2012 | Sewing Machines

1 Answer

Back thread loose and loopy - tension


If you have the instruction manual, you might read the chapter which describes the proper adjustment for threads and fabrics.
If you do not have one, try to find it on eBay. It is the huge source of everything.

Feb 20, 2012 | Juki MO-644D Mechanical Sewing Machine

1 Answer

BOBBIN TREAD LOOPING UNDERNEATH


looping thread on the bobbin side means that the upper tension is too loose... make sure it's threaded correctly.

Jun 14, 2009 | Feiyue FS288

1 Answer

Juki HZL-E61: cannot get tension right on straight stitch


Loops on the bottom of the fabric direct the problem to the top thread. Rethread again and make sure the thread goes through the tension discs. Lift the foot, because this is what opens the discs. When sewing and the foot is down, the discs should be closed and thus giving the upper thread the tension it needs.

May 25, 2009 | Juki HZL-E61 Computerized Sewing Machine

1 Answer

I can't get the tension on the right looper to work


Check the tension disks. Sometimes a piece of cotton breaks off in between the disks and prevent the disks to tighten properly. When you pull the thread with your left hand and adjust the tension with your right hand you should be able to feel if there is any resistance. If no resistance can be felt, it certainly is a problem with the tension disks.

Nov 15, 2007 | Juki MO-644D Mechanical Sewing Machine

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