Question about Sewing Machines

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I have tried to thread this machine, that i have done many times before. i follow the manual. every mm along the way. when i get to the back looper i don't know which side of the "bar to put the thread on. it's the mechanism that sits under the needle section. the one in the front is for the chain stitch, then the one in the back is the one that keeps messing thing -up , bunches -up and breaks the thread.

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click this link directly to check out the detailed instructions.
the brand is different from your machine but the system is same as will give you the fair idea Please do rate the solution. Thank you for using fixya.keep updated. thanks
Here's How:

  1. Place a spool of thread on the spool holder.
  2. Traveling from the spool holder, across the top of the machine, look for a minimum of one thread guide.
  3. Insert the thread in the thread guide(s).
  4. Now look for a tension mechanism.
  5. Bring the thread downward to the tension mechanism, slip the thread between the metal disks of the tension mechanism, and travel back upwards with the thread.
  6. Look for a take up mechanism.This is the area on the front of the machine which will go up and down, when you turn the hand wheel.
  7. Place the thread through the take up lever. Some machines are set up so the thread will slide in to this, others require you to place the thread through a hole.
  8. Now the thread will go downward on the left side of the take up lever.
  9. Locate and thread any thread guides, leading down to the sewing machine needle.
  10. Thread the sewing machine needle.
  11. Hold the thread with your left hand and turn the hand wheel.
  12. Watch for any thread to flap around. If this happens, you have probably missed a thread guide.

  1. Always thoroughly clean and oil any machine before running it.
  2. Every sewing machine is a little different, however the basic threading is the same. Always start sewing slowly, to test your machine threading.
  3. Use good quality thread, to prevent excess lint in the machine.

Posted on Jul 19, 2009

  • charlymonty Jul 19, 2009

    1. First you'll need to , which is a small spool of thread. See the linked article for detailed instructions.2. Place your spool of thread on the rear arm or post. For taller spools, you can usually pull on the arm to extend it.For some machines, there also may be a spool holder that slides onto the post. Place this on after the spool, making sure the spool can still spin freely.3. Place your bobbin on the bobbin winder, as pictured. Sometimes this will be a swing arm that you push to the right against another arm so that the bobbin doesn't get too full.4. Unwrap a few inches of thread from the spool. You'll need to pull that thread around the tension arm or button on the left-hand side of the machine and then pull it back to the right side of the machine to the bobbin.5. Pull that piece of thread up through one of the pinholes in the bobbin. I usually cheat by wrapping one or two rounds of thread around the bobbin by hand to get started.6. Press your floor pedal to get the machine started winding thread around the bobbin. Keep the machine going until the bobbin is fully wrapped but thread is not overlapping the bobbin edge.7. Cut the thread so that the bobbin has a short tail and remove the bobbin from the top of the machine.8. Now you can prepare the machine to actually sew. The main spool of thread will stay in the same spot on top of the machine. The bobbin's home is under a small door that is below and in front of your needle.9. Unwind a few inches of thread from the bobbin. (Note that in the pictures, I have switched over to a teal colored thread on the bobbin, just so you can differentiate between bobbin thread and spool thread.)10. Drop the bobbin into the space such that if you pulled on the thread, the bobbin would spin counter-clockwise. (You should be able to pull on the tail of thread to the right and the thread should unwind fairly easily.)11. There should be a cutout that you will lay the bobbin thread into. In my machine, there is a C-shaped loop with a blade at the end to cut off the thread.12. Close the trap door. There should be no thread protruding from it.13. Now we need to wind the thread from the spool through the machine. Unwind about a foot long length of thread from the spool. You'll need to keep tension on the line as you wind it through the areas of the machine described below, but only so tight as to hold it in place, otherwise the thread will break. This image shows the path that the thread needs to go as explained in the next 3 steps.

  • charlymonty Jul 19, 2009

    1. Take the thread and pull it through the top left hand arm of the machine.

    2. Next the thread goes straight down through a gully cut into the sewing machine. The thread then goes back up so it's making a U-shape.

    3. Most machines will have a hooked wire arm above the needle that goes up and down in time with the needle. This arm pulls the thread off of the spool with gentle tension. Wrap the thread up and over the arm, then take it down towards the needle.

    4. Now we'll send the thread through the areas that will help us thread the needle. At the top of the needle is a hook. Pull the thread through that hook and out toward the left-side of the machine.

    5. Next you will see a gray lever that is to the left of the needle. Run the thread under the inverse V-shaped part of that arm.

    6. Pull the loose thread across the front of the eye of the needle. At the same time, pull down on the grey lever. You'll see a little arm swing forward like a hand grabbing a stick. The goal of this is that the barbs on the hand will grab the thread and pull it through the eye of the needle. This may take a few tries. Make sure that the hand is grabbing at the right spot on the needle by turning the manual wheel on the right side of the machine. This will move the needle up and down.

    7. Once the needle is threaded, grab the excess thread and pull it under the 'foot' of the machine that will sit on the cloth. When you first start sewing, be sure to hang on to that thread, so that it doesn't get pulled right out of the eye of the needle.



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I need help with threading the necchi 857 overlocker imhave spent 5 hours trying to get it to work

Um-hmm. Been there, done that! Hopefully, you have a manual (I'm not able to find one online).

Here are a couple of hints:

Remove all the thread from the machine.
Recommend using the colored threads that match the machine's guide--will help you figure out which thread is misbehaving.
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With each thread, grasp the thread below the thread tree and also below the tension disk and give a gentle tug. Sometimes the thread will pop when it seats in the tension unit.
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You might try contacting the Necchi Support service.

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I have a white speedy lock serger model 7340. I completely pulled all threads out and now trying to re-thread new thread. I have tried around 15 times. It will not loop. Threads don't interlock at all

Be sure that you are threading each thread in the correct order. The manual should have those instructions.

ALWAYS RAISE the presser foot when threading the machine!!!! For most machines, the upper looper is threaded first, the lower looper second (the lower looper thread finishes by draping OVER the top of the upper looper and then pulled toward the back of the machine), then thread the needles. Give each thread an extra little tug when threading the tension disk to make sure it is seated completely.

Even if you are unable to locate a tutorial for your particular machine, most models from the same era will thread the same.

Don't be surprised if it doesn't work the first, second, or even the third try. It took me most of a day to get mine threaded correctly the first time!!! Patience!

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You can search YouTube for other videos.


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There is a user manual available here:

Babylock Sewing Machine Manuals Instruction and Repair Manuals

This may be helpful:
Babylock BL3 418 Sewing Machine Threading Diagram

Most sergers are threaded in the following order:

Upper Looper
Lower Looper with the final thread tail draped over the upper looper and then pulled toward the back of the machine
Then thread the needles


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Upper looper thread keeps breaking

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I am unable to get the machine to 'chain'and just have four straight threads. What have I done incorrectly?

Sounds like the machine is not threaded properly. Consult your owner's manual and follow it step by step from the very beginning. Most of the time the threads must be threaded in a SPECIFIC order (ie upper looper, lower looper, right needle, left needle--or whatever order your manual specifies). The order MUST be followed or it will probably never sew correctly.

Also, make sure you are "seating" the threads in the tension disks (hold onto the thread above the disk and pull down gently on the thread below the disc--it should make a "popping" sound when it seats.

Raise the presser foot BEFORE you thread the needles.

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Your serger should be color coded for threading. Just do one at a time either left to right or right to left with the cones. And you should be all set.

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These things are always complicated when you try to write them down, so I suggest a call to your local Bernina dealer to arrange a quick lesson on how to do it.

If you can go back to the dealer whence it came, so much the better..........perhaps you could go in and buy some things you need and then as you are leaving, make the enquiry with the machine in your car, they may be able to show you how to do it right away......building relationships is a very good way of feeling comfortable about asking for help.

If the manual diagram is too small, a local library or stationery supplier should be able to magnify a photocopy for you to see it all more easily.

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1 Answer

Machine not sewing

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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