Question about Janome MyLock 634D Mechanical Sewing Machine

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My Lock 134D Lost Manual

I have lost my manual for my overlocker, and would like to know what the differential feed and stitich length should be for standard overlocking tasks. Can anyone help. Thanks

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  • mensor Nov 21, 2007

    My machine is a Toyota SL 3404D overlocker

    I have been trying to set the tensions on my overlocker for two different types of fabric - but I am finding that whatever fabric I use the chain is not consistent - ie, I could overlock a 60inch piece of fabric and will get a very uneven stitch with parts of it that look fine... what can I do to correct this? I have tried altering my tensions as per the guide book... but this is not rectifying the problem - the stitches are just not consistent.

    Please help.

  • jackovtrade Dec 24, 2007

    cant believe how hard it is to acquire the manual for the 134D overlocker. Any help would be appreciated. Even a manual that is simular would be helpfull.

  • grannyhooley Mar 29, 2008

    I too have purchased a second hand 134D overlocker. Can anyone help with a manual. I eill pay for copies.

  • Anonymous Jul 28, 2008

    In June 2008 I was able to purchase a new manual for the New Home MyLock 134D Overlocking machine by sending an email to The cost was £6.00 + £5.00 P&P. I received the manual very quickly.

  • neekbunny Nov 04, 2008

    i am having an issue with the left needle [thread 4] seems to be catching the thread above the eye of the needle is and causing the thread to break, have tried adjusting the tension and i have tried different colours thread to try to work out which part is causing the problem but it is a different thread catching it each time.

  • dancinglass Jan 07, 2009


    I need a manual for a Janome 534d Serger. Does anyone have one I can buy or copy?

    Pat H

  • Nestori Miikkulainen Jul 22, 2014

    neekbunny: I had a similar problem and i tried to figure it out just like you did. I installed new needles, that did not help. I found a solutions online: correct threading order is 2, 1, 3 and 4. It is NOT 1, 2, 3 and 4. This solved my problem. I don't kow if it will help you, but you can try it.



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Follow the link and you can view the instructions online

Posted on Jun 30, 2008

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Here is the link to the PDF file of the manual for what appears to be the 134D Model on Bernina's website. It says it is for a 43D but it looks very close to my 134 model. It is out of print, but you can save it to your computer and print it if you want!

Posted on Jun 01, 2010

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The feeder foot no longer moves ,is something broke? thanks

Posted on May 06, 2010

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The manual states that 1.0 on the differential feed is the neutral position,(no differential feed). Turn the dial counter clockwise toward 2.0 if the stitch is stretched and toward 0.7 if it is puckered. The larger the number on the stitch length dial will give you a longer stitch, this can be adjustted from 1 to 4. R is for rolled hemming. A lot will depend on the type of fabric you are using, but these are the basic instructions from the manual. Hope this helps.

Posted on Apr 25, 2009

I am in the phils..& have a janome 134d manual or instruction me at

Posted on Apr 07, 2008

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I emailed Janome and they have recommended visiting local store and they will order your manual for RRP $20. cant say I was happy about that.

Posted on Dec 24, 2007

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I have the instruction book for the Janome My Lock 134D differential feed serger and will make copies and mail to you just for postage. I live in the U.S.

e-mail me at


Posted on Jun 15, 2008

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I have this manuel for the 134d Janome email me and I will make a copy and send it free to you I have a nice printer I can do this for you, my email is

Posted on Sep 20, 2008

  • Leah Kennedy Sep 20, 2008

    The differential feed is 1.0

    The the stitch lenght is factory set at 3


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Posted on Jan 02, 2017

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1 Answer

I need help in good tension for rolled hem in empisal 606D overlocker

Your owner's manual should have instructions for rolled hem settings. My Bernina manual has a the following settings:
Medium weight fabric
80/12 Universal needle
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Stitch length 1-1.5
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Can use woolly thread in the upper looper, but the tension may need to be loosened since the woolly nylon thread will stretch.

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How to use the differential adjustment knob on the Juki MO-644D. Not seeing instruction in the manual

Found the manual here on features page
Differntial feeding is covered on page 25, and the diagram showing location of the differential feed knob and stitch length knobs inside the cloth plate is on page 2.

So swing open the left cover (cloth plate) to access these controls.

Differential feed means you change the feeding speed of the two feed dogs so the front one feeds at a different speed to the back one. Effectively, this either streches the fabric as you seam, or pushes the fabric together as you seam. So if you want to do a rolled hem "lettuce" edge you are stretching the fabric with the differential feed to achieve this, turn the numbers up. If you are sewing a loose knit and it is "waving" then turn the diff feed down to 0.7 or so to squeeze the fabric back together.

That's basically it! Like anything on an overlocker, test sew, adjust, test sew, adjust until you are getting the right effect.

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Janome 134D Overlocker

Set you differential at 1.0 and your loopers at about 3-4 the needle thread tensions are usually around 5 to 6.
 I would also suggest that you place four different color threads on machine to make it easier to adjust all. Now if you are using only 3 threads the same applies.

Oct 09, 2007 | Janome MyLock 634D Mechanical Sewing...

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