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Can I buy a lower looper for my 334Ds overlockers and can I instal it myself

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  • Sewing Machines Master
  • 9,272 Answers

You probably can. Search for:

Make Model lower looper
or
Make Model parts

However, if the lower looper was damaged, it's possible the machine was also knocked out of time that may very well require a professional to repair.

Posted on May 10, 2017

Testimonial: "Thanks for that . Deanne"

6 Suggested Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: lower looper threader

check to make sure it is not wraping around the upper looper. just stitch without the material and you will see it. but then you must rethread the upper looper and the lower looper again in the right order. hope this helps

Posted on Jun 25, 2008

  • 1 Answer

SOURCE: thread continually breaking in lower looper needle

I was having this very same problem with my lower looper . I had been using the one needle stitching all afternoon and I was doing quite nice stitching. then I decided to put the right needle back in and do some overlock stitching and guess what I spent the next two hours fighting the looper problem. I had completely re-thread this machine at least 20 times now. I decided to take the needle out and re-insert it and re-thread it one more time (right lower looper- then upper looper- right needle- then left needle) was careful to pull all threads to the back and under the presser foot for about 6 inches.
Held on to the thread, lowered presser foot and did the chaining stitch. BINGO it didn't break, tried it with a piece of cloth and Perfect stitches. I have a Babylock BL402 and used tension settings left to right
4-3-3-3 and default settings for the rest.
Hope this helps someone someday.
Jo Griffith

Posted on Mar 29, 2009

WonderTech
  • 268 Answers

SOURCE: When i use my janome overlocker the needle is

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.

Posted on Sep 15, 2009

  • 1116 Answers

SOURCE: I have a 3/4 thread 234 model Bernette overlocker,

Newcastle where?

In the US, a sewing machine repair service can do the work - a Bernina tech would be better.

Service starts at about $100 plus any parts that have to be replaced.

If you go to the Bernina website, there should be a dealer locator option.

Posted on Mar 20, 2010

  • 1340 Answers

SOURCE: When using my Singer overlocker 14t554s the lower

Here is a link to Singer,however it doesn't seem very helpful.I saw a couple of your problem under the FAQ section.On my wife's machine which was a Brother,you could adjust the bobbin tension by sliding a plate on the bobbin metal jacket/casing where the thread ends up coming out.The hole/slot size could be adjusted and required very little movement and may not have a wide range of motion.Play with it and see if you can get it to do that or look and see what you find.I do not really know how to describe it but I was always doing the maintenance on it and she showed me stuff like that.Here is the link.If you do not get anything out of either,just comment back to this post and I will get an auto link.Good luck! Greg cms...Are you in Canada or Europe or something?
http://www.singerco.com/resources/

Posted on Sep 01, 2010

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1 Answer

Bernina 335 serger won't sew/overlock. carefully rethreaded the serger but that hasn't helped.


The 335 has a two thread chain stitch (stitch type 401), and the overlock side (right needle side), is a three thread plain overlock. If you are describing the plain overlock as the problem, I would first suggest the following in re-threading:

1. Thread the upper looper
2. Thread the lower looper
3. Thread the needle last (important)

If the needle threaded, you cannot re-thread the lower looper without breaking the thread.
In order to thread the lower looper, the lower looper must pass by the needle thus picking up the needle thread. So, instead of threading the lower looper thread underneath the needle thread, the looper would be threaded on top and cannot sew without breaking the thread.
Make sure that the threads are bedded between the tension disks. Check this by stretching the thread fore and aft of the tension disks as well as visually noting that the threads are not accidentally threaded behind the disks. You can also loosen the tension disks when threading so as to allow the threads to bed deeply between the disks.
Please reply with your observations.

Sep 27, 2015 | Bernina Sewing Machines

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Hi thanks for asking. I have a bernette overlocker model no 334ds/334s. the shop I bought it from is no longer in business, why I`m trying to fix it myself


Try MFG website for repair manual, or their customer service may be helpful, or try a repair manual from manualslib.com

Mar 26, 2015 | Sewing Machines

1 Answer

Loopers jamming


Overlockers require precision timing. Take it in and have it cleaned, adjusted and timed.

Sep 06, 2012 | 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

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I have a bernina overlocker and whenever I use it the lower looper (marked in red) thread breaks. How can I fix this? It was serviced yesterday and when other people used it before me it worked fine!


Then it's one of two things. First try setting your lower looper tension on 3 and see if that works. If not set it back on 4 and cut ALL your threads and re-thread the machine STARTING with the UPPER looper, then the lower looper, then the right needle, last the left needle if you're sewing a 4 thread overlock stitch. Make sure the threads aren't twisted in the thread guide. Make sure the lower looper thread is OVER the elbow on the upper looper and over the upper looper thread. Let me know if this works. We'll work until we get it fixed!

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Bernina 334DS serger - RH needle tacks lower looper into seam


You should take it for service. It could be slightly out of time.

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Lower looper threader


check to make sure it is not wraping around the upper looper. just stitch without the material and you will see it. but then you must rethread the upper looper and the lower looper again in the right order. hope this helps

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