Question about Juki MO-644D Mechanical Sewing Machine

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Tension settings juki mo-644d

Well I got it threaded, but any ideas on tension settings (ideal numbers)? I can't seem to get it right. Thanks.

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  • Anonymous Mar 17, 2014

    how to set the tension dials

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  • 48 Answers

-If the machine is threaded correctly and the thread is flossed into the tension discs,
-if the thread is high quality and not cheap thred
the top tensions should be at 5-6 and the looper tensions should be at 4-5
Be sure it is threaded correctly (follow the threading map on the inside of the front cover of machine
Also be sure you are using a size 14 or size 90 standard Schmetz needle do not use Klasse needles
as these are to short and affecdt the timing.
drtension

Posted on May 02, 2010

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Posted on Jan 02, 2017

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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

HI, I ve just got my Juki 644D yesterday. Brand new. Today I was using it and tried to adjust the tension. The front cover was open when I tried to do some stiches to see if the tension was ok. ...


take back the machine to the store you bought it from and get another machine.that is if you have warranty.you will have more problem later on.that needle like metal is from under the machine and it broke off the tension feeder. good luck.

Sep 25, 2011 | Juki MO-644D Mechanical Sewing Machine

1 Answer

I need to do a rolled hem on my juki and can't remember how to set it to do so.


You need to have only the right needle inserted, and have the stitch finger retracted. Set the stitch length on the smallest setting, tighten the lower tension up about 3 numbers, and you should be good to go.

Apr 27, 2011 | Juki MO-644D Mechanical Sewing Machine

1 Answer

JUKI MO 134 SERGER


How to Thread Juki MO-134 Serger from watching lady at Lyles. Turn upper blade up. Push in first then turn up.It makes threading easier. Blue Thread upper looper first. Pull thread through tension knob. Don'tjust lay it there. (She thought that is what I must have done) Orange Thread lower looper next. Pull thread through tension knob as inthreading upper looper. Adjust lower looper so it is right nextto upper looper so that their points are almost together and directly belowsewing needles. Lower looper will be in front of upper looper (I believe). With tread from upper looper pulledback, slightly lift lower looper above upper looper and thread. I think this isright. Pull thread back with other thread. Tension is the key. Remember that. Yellow: Thread left needle first.Remember tension. Pull thread through curled wire on left side of needle arm. Green: Thread right needle. Rememberabout tension. Pull thread through curled wire on right side of needle arm. b> Note: Before sewing turn the wheel tomake sure the stitches are going together correctly.

Apr 16, 2010 | Juki MO-644D Mechanical Sewing Machine

1 Answer

How can I use this machine as a MERROW machine ?


For best results, use Maxi-Lock cone thread.
Remove the left needle.
Slide the stitch forming finger towards you, away from where the stitch forms.
Set the stitch length to around 1.
Set the needle tension 4 or 5.
Set the upper looper tension at 4.
Set the lower looper tension at 7.
Adjust the stitch width, if needed.

Jan 24, 2010 | Juki MO-644D Mechanical Sewing Machine

1 Answer

How do I thread the Juki MO-644D?


Email me at sewingnz@gmail.com should be able to help.

Jan 19, 2010 | Juki MO-644D Mechanical Sewing Machine

2 Answers

I bought a second hand Juki industrial machine , model DDL 5550-7, but struggle to get the tension of the stitches right. where do you set the lower stitches tension


upper tension sets the lower thread tension (upper thread is what you see on the underside of the fabric). Bobbin tension is for the thread you see on the top of the fabric

Jul 01, 2009 | Juki MO-644D Mechanical Sewing Machine

1 Answer

My thread is breaking when I'm sewing on my Juki DDL 555


MAKE SURE YOU HAVE THE RIGHT NEEDLE FOR THE THREAD YOU ARE USING, AND THAT THE SAME THREAD IS ALSO IN THE BOBBIN. CHECK UPPER TENSION, BY PULLING SLIGHTLY, IF IT'S TIGHT, LOOSEN THE UPPER TENSION.YOUR THREAD MAY BE THE WRONG SIZE OR TYPE FOR THE SPEED YOUR SEWING., and the needle your are using( sorry about the caps lock)

Oct 18, 2008 | Juki MO-644D Mechanical Sewing Machine

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