How to Thread a Janome Overlocker

How to thread a Janome Overlocker (Serger)

 

Threading is not only the first step in using an Janome overlocker, but threading an overlocker is the most important step, as faulty threading will result in no stitches or faulty stitches forming. Threading an overlocker might look challenging but following a few simple rules, threading will become easy and take less time.

 

THREADING AN OVERLOCKER

The Right Hand Side Thread (The Green Tension Dial)

  • Following the thread guide (located behind the front flap) start with the thread on the right hand side of the thread stand first. With the telescope up at its highest position, thread this thread through the right hand side eye of the telescope.
  • Place the thread through the metal thread guide at the top of the machine and then through the guide which is above the green tension dial.
  • Place the thread around the green dial going from right to left, and give the thread a little tug (pull) to ensure that it has gone into the tension disks correctly.
  • Using the green markers on the five thread point (which are behind the front pull-down flap) pass the thread through these points, resulting in the thread being on the left hand side of the overlocker.
  • Thread the thread through the eye of lower looper and pull the thread behind the presser foot.

 

The Thread which is second to the right (The Red Tension Dial)

  • Thread this thread through the right hand side eye of the telescope.
  • Place the thread through the metal thread guide at the top of the machine and then through the guide which is above the red tension dial.
  • Place the thread around the red dial going from right to left, and give the thread a little tug (pull) to ensure that it has gone into the tension disks correctly.
  • Using the red markers on the two thread point (which are behind the front pull-down flap) pass the thread through these points, and then bring it up and behind the small metal bar which is next to the upper looper.
  • Thread the thread through the eye of upper looper and pull the thread behind the presser foot.

 

The Thread which is second to the left (The Blue Tension Dial)

  • Thread this thread through the right hand side eye of the telescope.
  • Place the thread through the metal thread guide at the top of the machine and then through the guide which is above the blue tension dial.
  • Place the thread around the blue dial going from right to left, and give the thread a little tug (pull) to ensure that it has gone into the tension disks correctly.
  • Hook the thread on the metal finger (which is below the yellow tension dial) and then place it over the take up lever (which is left of the yellow tension dial).
  • Bring the thread to the needle and place the thread through the eye of the right hand needle

 

The Thread which is second to the left (The Yellow Tension Dial)

  • Thread this thread through the right hand side eye of the telescope.
  • Place the thread through the metal thread guide at the top of the machine and then through the guide which is above the blue tension dial.
  • Place the thread around the yellow dial going from right to left, and give the thread a little tug (pull) to ensure that it has gone into the tension disks correctly.
  • Place it over the take up lever (which is left of the yellow tension dial).
  • Bring the thread to the needle and place the thread through the eye of the left hand needle.

 

SETTINGS

Setting the Janome Overlocker up to do a 3 & 4 Thread Overlocking Stitch is very easy with Janome Sergers and Overlockers. Simply follow the following settings when setting up your Janome Overlocker and you will be hemming to your heart’s content.

Tensions

o All four tension dials should be set to “3”

Stitch Length

o Set the Stitch Length dial to “3”

Differential Feed

o Set the Differential Feed Dial to “1”

Ensure that the upper knife is engaged and cutting the fabric

 

Tips and Tricks

► A threading diagram on the machine indicating the sequence and colour coding for each thread.

► Each thread’s path should be colour coded on the machine, from the thread stand to the needle or looper.

► Clip-off presser feet that enable you to reach the needles and loopers easily.

► Threading should always go from the right hand side thread to the left hand side thread

► Choose a good quality thread. (The original thread spools that came with machine are of a very high quality). To ensure that the tension is consistent on all four tensions, we recommend that you use the same type of thread for the loopers and the needles.

► Do not use woolly thread referred to as ‘flock’ or ‘floss’ in the needles, as this will keep on breaking, jamming, perhaps even breaking the needles.

► Thread one reel at a time, starting at the thread stand and following the indicated path up to the needle or looper.

► Bring all threads under the presser foot to the back and drop the presser foot.

► If you have a problem it is always better to remove the threads and start right from the beginning.

13 thoughts on “How to Thread a Janome Overlocker”

    1. Hi Kerry,

      The lower looper – the far right hand spool – uses the most thread, as it has the longest track to pass through. It is then followed by the upper looper on the third spool, and the two needles are exactly the same.

      Cheers,

      Ryan

  1. I have a Janome ezy lock 604D. My problem is my left needle thread doesnt seem to be sewing the thread just comes out straight. I have rethread i dont know h ow many times and im convinced i have threaded it correctly. Very frustrated. Any ideas what im doing wrong or could it be the machine. Louise

    1. Hi Louise,

      Thank you for your comment.

      There are three possible reasons that your overlocker might be missing the left hand needle when stitching relates to either the needle or the timing of the machine. Most likely, the needle(s) might be either slightly damaged/bent or may not be push up completely. As this is the easiest potential solution, I would recommend changing the needles and seeing how it chains.
      The other potential cause is that the timing of the loopers on your 604D is slightly out. If this is the case, I would recommend taking your overlocker to your local Janome Service Centre.

      Kind Regards,
      Adam

  2. I have tried everything and can not get the left thread needle to loop. I have re-threaded dozens of times, I heard about timing on the loopers but can budge the screw on my lower looper without scarring the screw slots on my Juno Janome 3434D serger, I recently was serging too thick of materia and it ws jamming so after a day of trying to find the problem, I noticed a broken needle on the needle plate and replaced it, but still cannot get the left needle to loop, thought that was gonna fix the problem, help please!!!

      1. Hi Nola,

        Thank you for your comment.

        From the sounds of what you are describing, there are several possible causes of your issue. If you would like to drop us a line on 07 3355 5522, or on our email address [email protected], we will be able to assist you properly.

        Kind Regards,

        Harrison

  3. My 3434D has decided to just not work properly this morning after years of perfect use. I can’t get the rolled hem function to operate correctly. I’ve done this many many times with great results but this morning the top threads still want to not roll up. I’ve rethreaded MULTIPLE times. I’ve checked and rechecked tensions. All is in proper place. Crazy thing is that only the wide 4 thread serge function is great. I remove that left needle and go to 3 thread serge or rolled hem and that’s where things go crazy.

    1. Hi Sheila,

      Thank you for your comment.

      There are a couple of possible reasons that your overlocker could be having that particular issue. Without having the machine to have a look at, at this stage I would recommend that you go through and try a fresh set of needles in your overlocker, and also check the forming needles on your needle plate. If those have become broken, it can potentially cause an issue with 3-thread and rolled hem overlocking.

      Hopefully this helps Sheila, but if you do have any further questions, please let me know on [email protected] or on 07 3355 5522.

      Cheers,

      Harrison

  4. The lower looper needle seems to come unthreaded. I have ‘re threaded every thread several times, changed needles, cleaned needle plate of any fluff, checked tension. It seems to go for a while then jam. Help! What am I doing wrong? Used this machine for over 4 years with no problems until mow

    1. Hi Lorna,

      Thank you for getting in touch with us. There are a couple of possible causes for those issues that you mentioned there. The most likely cause is that your threads have become brittle due to age, or that your tension has become worn due to extensive use. I would recommend that you take your machine along to an authorised Janome technician, as they will be best able to assist you. Please let me know if there is anything else I can assist you with, on 07 3355 5522 or at [email protected].

      Kind Regards,

      Harrison

  5. Hi my janome 744d is intermittently skipping stitches. It’s the left needle that is skippping. I’ve changed needles, threads , cleaned , oiled . I’m at a loss, any ideas? Thank you

    1. Hi there Janet-Ann,

      Thank you for getting in touch with us. There a couple of reasons as to why your overlocker could be skipping stitches, including the threading of the machine or that the threads themselves have become brittle due to age. If you would like to get in touch with us on 07 3355 5522 or at [email protected], we will be able to assist you.

      Cheers,

      Harrison

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