Question about Juki 2-Needle Overlock Machine MO-734DE

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Machine is not sewing correctly.I just replaced my lower looper.It only sews straight lines now and they usually wont stay to the fabric.i've tried rethreading it a lot of times but it hasn't improved

Ive tried adjusting the lower looper. i've rethreaded it. i've changed the needles. i've adjusted the pressure foot. tried a couple different tension variations

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R.A. Ellis

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I have a singer ultralock 14u34. The lower looper will not stay threaded when I try to sew, just works for an inch then nothing is catghing and the looper is no longer threaded.

Some sergers will unthread themselves if the thread is not threaded through the throat plate right. Especially the lower looper because there is not a lot of space for it to move. Try bringing the thread from the looper straight up through the hole in the throat plate, not to the side of the plate. You can also talk to the professionals at the link that I have attached. They are very helpful and easy to work with. Good luck Sewing Machine Repair Repair Sewing Machines Sewing Machines Repair Fix...
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Kenmore 385 #3 thread breaks

Try removing thread #3 from the tension altogether. If this doesn't work, then try using a different spool of thread. Some break easier than others. If this doesn't work, try rethreading your serger from the the beginning. Upper looper first, then lower looper, then needle. Test on scraps.
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I take it this is a serger from the fact you have a looper. Try changing which looper thread is on top when you thread it. Mine jams if they're not done just right. BTW, the easiest way to thread a serger once you've got it once is to tie the new thread to the old and pull it through.

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Manual for overlocker

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Upper Looper, Lower Looper, then needle(s)

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I've not found a manual that doesn't cost.
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I've got a serger by Brother and I got fabric

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When i use my janome overlocker the needle is hitting the lower looper, and therefore breaking. This is happening with both needles. I have taken the covers off and the needles are hitting the metal. Is it...

Hello,
Here are a few things to try.

* When you insert anew needle, make sure it’s positioned correctly. Usually with the flat side
away from the bobbin, but consult your manual. Make sure that it goes all the way into the holder, and that the screw is securely tightened.


If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot
Make sure it’s attached securely.

* Change your pressure foot
Your pressure foot may be bent, causing your needle to hit it.

* Don’t sew over pins
A needle that hits a pin can break. Always remove the pins from your fabric before they reach
your needle.

* Don’t pull your fabric as you sew
You could be bending your needle back, causing it to hit your needle plate instead of going into
the hole. Just guide your fabric, letting it feed on its own.

* Check your needle plate
Make sure it's securely in position.

* Change your needle plate
If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for
sewing fine, delicate fabrics), switch to a needle plate with a wider hole.

* Check the position of your needle
Sewing machines with zigzag capability allow you to adjust the position of your needle – right,
left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or
pressure foot.

I hope one of these solutions help you.

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Just replaced my uppper looper on my white 1634....

Hi.
The upper looper goes just in front of the needles. I had issues with my machine when I got some fabric jammed and the looper moved so it wasn't catching the left needle and it was sewing a straight stitch on the left. The looper needs to be placed in front of the needles and very close to the needles without hitting them.

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Cherie
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I had the same problem with the blue thread- it would sew and inch then pop- mine worked wihtout breaking after I re threaded in this order: green, blue, red then yellow
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Make sure you have threaded the machine from right to left, it sounds like the needle thread is trapped under the lower looper thread and cannot form a stitch.........start the threading over from scratch like this:

  1. Lower Looper
  2. Upper Looper
  3. Left Needle
  4. Right Needle
Is there a diagram for how to thread on the inside of the door ?

Follow that slowly and carefully to make sure you have not missed any thread guides on the way, as each one needs to be followed through to ensure correct tension and thread progression.

If you are certain that all threaded correctly, did you have a fabric jam and pulled it loose ? If so, the timing may well be affected.

Post an update and we'll get this right.

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