Question about Janome D'cor Excel Pro 5124 Mechanical Sewing Machine

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The machine was working fine then all the sudden I have too much thread on the bottom of the machine where the bobbin is.

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  • 208 Answers

That usually indicates a total loss of upper thread tension.

Take the bobbin out, un-thread the machine and start over.

Place the bobbin back in to the bobbin case, making sure to follow the illustration on the bobbin cover.

Then, with the presser foot up and the take-up lever in the highest position, re-thread the machine.

The upper tension dial should be set on 4 or 5.

Posted on Jun 17, 2009

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1 Answer

My Brother PE770 was sewing fine and all of a sudden started looping on the upper embroidery. I have cleaned the bobbin case, rethreaded etc.


The bobbin case sounds like it became loose for some reason. You need to fix this. Somehow the thread isn't under the tension spring. Check that bobbin! The only other reason is the top tension became too high. When you are threading the top do it with the pressure foot up. As you are threading the top apply little tugs to see if there are snags. This will tell you if you are having problems on top.

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14SH654: Singer 247 Machine runs fine and then bottom bobbi...


Try using a style 60 or 66 bobbin. I had the same problem at first, and someone on-line suggested the different bobbin. I use a style 66; instead of having a flat bottom and top (and all those holes), it's shaped something like a bagel. Now my machine works beautifully.

May 16, 2010 | Singer 14SH654

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Sewing a bunch of thread from the bottom, this stops the machine from actually sewing


Yes, it does. There are a couple of reasons the bobbin thread could be bunching up on the underside of the fabric. It could simply be that the machine needs cleaning. Take the bobbin assembly out, brush all the old lint out as best you can, reoil the machine once it's all clean, and make sure there aren't any little bits of thread caught in the bobbin assembly. Rethread the machine (carefully) and change the needle. This solves the problem usually--especially if the machine was sewing along fine and the problem develops suddenly. '
The other thing to check is your tension. It could be that the top tension is too loose. But different color thread in the top and in the bobbin, stitch a few inches (be sure to held the top and bobbin thread ends behind your needle as you start to stitch) and check. WIth the pressure foot down, adjust the tension, and stitch again. Keep stitching, checking, and adjusting until you see little if any bobbin thread on the top or top thread on the bobbin.
Another thing to reminder: use the appropriate thread and needle for the fabric you're sewing.
Let me know if this works, ok?

Robbie

Jan 31, 2010 | Elna Sewing Machines

1 Answer

Sewing a straight seam will be going well until the bottom thread suddenly becomes very loose and loopy. The top thread is completely fine. The only clue that this is happening is the spool "jumping"...


Hello,
Here are some solutions to try.

* Increase the upper thread tension on your machine. It may be too loose.

* Decrease your bobbin tension if your sewing machine allows you to adjust it. Consult your manual.

* Reinsert your bobbin. It may be inserted incorrectly.

* Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both.

Although you did this, it won't hurt to re-check. Make sure bobbin is threaded correctly.

Hope this helps.

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The uper thread dose not catch the bottom thread


If there is a screw on the side of bobbin case try tightening it up.This usually worked on my old machine.

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Thread jamming on the bottom of fabric


The tension must have gotten loose during use, try adjust the tension on the thread, and the bobbin casing.

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No tension on bobbin thread


You might remove the bobbin assembly looking for a broken tension spring (maybe a piece of it lying in the bottom the bobbin case.

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Spool is bouncing on spool pin


Get a stand alone spool holder, sometimes the spool pins arent high enough to support the thread or you can try a thread sock

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Brother ls2125 bobbin not picking up thread


OK...I have an old singer (from 1964) so I am not sure whether you can do this...

I thread the upper thread as directed.

I stick the bobbin in the bobbin assembly as directed.

LEAVING THE SLIDE DOOR OPEN...I, by hand turn the wheel on the right hand of the machine counter clockwise (towards me). I want the needle go down. The thread from the upper part will enter the bobbin area and will form a loop that goes OVER the top of your bobbin to catch the thread from the bottom.

I keep turning until the machine has complete a cycle where the needle has started from the highest point, dropped to the lowest point (thus forming the loop that passes over the bobbin) and returns back to the highest point).

At this point you will notice that the thread is coming for from the bottom of the machine..I use a scissor to pull the the ends of the thread through. To the top. There should be two ends, one from the top thread, one from the bottom. If you dont believe me..jsut use a bobbin with a different color of thread...you will see what I mean..there will be two threads...one the first color and one the second color.

Good luck!!

Jan 17, 2009 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Bottom (bobbin) thread suddenly loosens


Good morning,

A few steps to help you troubleshoot:
  1. Bobbin in the right direction: when looking at the bobbin in the bobbin case, pull the thread tail. The bobbin should turn clockwise.

  2. One of the biggest causes of what you describe is simply a burr/rough spot on the needleplate or hook.

    Remove the needleplate from your machine and inspect the opening for any rough spots... run your finger over the area to feel for any sharp bits. If you discover some rough spots, they can be smoothed using a fine emery cloth. Use this gently - don't want to distort needle opening, just smooth the roughness.

    If no rough spots on needleplate, open the bobbin cover and turn the handwheel towards you until the hook (little pointy part of bobbin area) is towards the bottom of the machine. Run your finger over the point to feel for any rough spots. Again - a fine emery cloth can smooth this. Be VERY careful to not flatten the hook - just a little smoothing to get rid of rough bits. Too much can ruin the hook. If you're uncomfortable with this, don't hesitate to take to your Pfaff tech and point out the rough bits.

  3. Hold the bobbin case/bobbin between finger/thumb, making sure you're not pressing on the bobbin tension (little flat metal piece on side of case). Pull the thread smoothly out of the bobbin case to see if you feel any little glitches. If you do, there may be a bit of fuzz/broken thread trapped under the bobbin tension.

    You can loosen the large setscrew on the side of the case to allow you to blow out whatever may be trapped.

  4. While your top thread may appear fine, there may be a bit of fuzz or broken thread wrapped around the take-up lever. This would interfere with the smooth feeding of the upper thread, also causing an inconsistency in the bobbin.

    Use a flashlight and look down into the top of the machine/takeup lever area. You may be able to see a bit of thread and remove it. If you can't see an offending bit, try "Flossing" your upper thread path by grasping the thread close to the spool and after it comes out of the needle. Run the thread back and forth through the thread path to see if you can dislodge anything

  5. If none of the above help, we'd suggest you have your local Pfaff authorized tech take a look. It's always a good idea to take your machine to it's respective authorized service person as they'll be the ones to know the most about it and have access to any repair parts.
Please don't hesitate to respond if you need further help or clarification.

Happy sewing,
Kim & Linnette

Jul 10, 2007 | PfaFF Hobby 4260

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