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

1 Answer

Bobbin has no motion

I ran out of bobbin thread.  I reloaded the bobbin.  I replaced the bobbin in the exact same spot it always goes, threaded the thread according to the diagram as always, and now the bobbin does not move, not even to catch up the thread with the needle-thread.  It just sits there looking stupid.  I've now taken the whole damn apparatus apart, but I cannot figure out what *ever* made the bobbin move when it was working!    The only previous symptom was an occasionally loud "chunka chunka" sound from the bobbin along with botched lower stitches.  Any ideas?

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  • MelAlewine1 Mar 08, 2008

    none yet, i was wondering could there be a screw missing that makes the bobbin jump around

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  • 84 Answers

The bobbin will not move unless the thread is being drawn up by the top thread. If the top thread is not bringing up the bobbin thread, but was doing so just fine before it ran out of thread, then most likely the needle has somehow been bent.It may not look bent, but change it anyway. If it was sewing fine before running out, most unlikely that the timing is out. If you removed the black plastic bobbin holder, it may not be seated correctly. Check it for ANY scratches or needle strikes as well. The slightest mark on it will cause dramas. Good luck!

Posted on Oct 22, 2007

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Posted on Jan 02, 2017

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1 Answer

After cleaning the hook system which for which a problem was indicated., it still wouldn't work.


1. Clean the hook area again. Put one drop of oil on the race that the bobbin case rides on.
2. Make sure the holder on the bobbin case area is held secure while it is turning. It will need to be adjusted if the bobbin case wants to fall off of the race or has a lot of room when you move the handwheel back and forth. Test this by turning the hand wheel back and forth.
3. Once this is finished thread the machine through a new needle. a. Place the tension on four.
b. Now, turn the hand wheel towards you and hold the thread in back of the needle.
4. While doing this watch to see if the bobbin thread is pulled by the hook around the needle thread without getting stuck. (Needle now in rising motion still under plate.)
**If the bobbin thread cannot be pulled above the plate try to increase the top tension a small amount.
**If it still can't be pulled above the plate then loosen the bobbin a bit.
This may take a little while to get it right. Always, try to adjust from the top tension first.

Feb 15, 2016 | Sewing Machines

1 Answer

Why does my thread keep bunching up?


That is called "thread nesting," and several things can cause it. The upper thread enters the bobbin area during sewing, catches the bobbin thread, and as the needle goes up, pulls the stitch tight. Something is catching the upper thread as it goes around. The most common reasons are the bobbin or bobbin case (or both) is improperly inserted; the bobbin is warped (roll it down a flat surface--if it wobbles, it's warped), either the case or the bobbin is not seated evenly, there is a rough spot on the bobbin case that is catching the thread, or your bobbin is loosely/badly wound. You need to rule out the possibilities step by step until you find the cause. First, review your threading procedures from start to finish, using your user's manual. Then, without fabric, turn the hand wheel by hand (ALWAYS towards you) to see if you can see it start to catch. The top thread should rotate smoothly in the bobbin area. You should be able to pin-point the cause that way.

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1 Answer

My bobbin thread keeps looping up on the bottom, and after adjusting the tensions both ways I can't get it to stop making a mess.


try this:
Tension:
If the thread is loose on the bottom of the fabric, it's actually the top thread is too loose. Think of 2 little elves playing tug of war in your machine, one on top and one underneath. If you have loops on bottom, the top needs to pull harder (tighten top tension)
Thread test
Test your thread quality to start, thread your machine and LIFT the presser foot (this opens the tension disks). Pull your top thread straight back. If you feel no tension no matter how much thread you pull, your thread is good. If that your machine passes that test, we can go to step 2. If not, try different spool of thread, do the same test until you get a smooth pull (tip: always check your thread this way when you thread your machine)
Step 2:
Pull on your threaded bobbin thread while it’s in the machine. Does it pull smooth and even? If so, go to step 3. If not, try a new bobbin (bobbins get bent or distorted if wound too tight).
Clean thoroughly in the hook and bobbin case area and oil 1-2 drop is all.
Jamming bobbin case:
If it is damaged from turning out of place once, it could have rough spots on it that makes the thread hang on it, and keeps making it turn over and over. Use a finger nail board (fine sanding) and smoothall rough spots. Then reset the bobbin case taking care to put the notch in the bobbin case in alignment with the proper spot in the machine (basically 5 o’clock) when looking at the round area where the bobbin case goes

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1 Answer

Thread is 'snagging' in the bobbin case


If it is damaged from turning out of place once, it could have rough spots on it that makes the thread hang on it, and keeps making it turn over and over. Use a finger nail board (fine sanding) and smoothall rough spots. Then reset the bobbin case taking care to put the notch in the bobbin case in alignment with the proper spot in the machine (basically 5 o’clock) when looking at the round area where the bobbin case goes.

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1 Answer

Upper thread knots up with bobbin thread when sewing a stich


Thread test
Test your thread quality to start, thread your machine and LIFT the presser foot (this opens the tension disks). Pull your top thread straight back. If you feel no tension no mater how much thread you pull, your thread is good. If that your machine passes that test, then let me know, we can go to step 2. If not, try different spool of thread, same test until you get a smooth pull (tip: always check your thread this way when you thread your machine)
Step 2:
Pull on your threaded bobbin thread while it’s in the machine. Does it pull smooth and even? If so, go to step 3. If not, try a new bobbin (bobbins get bent or distorted if wound too tight).
Clean thoroughly in the hook and bobbin case area and oil 1-2 drop is all.
Thread knotting on the bobbin can be a lot of things but here's some guidance:
Tension:
If the thread is loose on the bottom of the fabric, it's actually the top thread is too loose. Think of 2 little elves playing tug of war in your machine, one on toip and one underneath. If you have loops on bottom, the top needs to pull harder (tighten top tension)
Jamming bobbin case:
If it is damaged from turning out of place once, it could have rough spots on it that makes the thread hang on it, and keeps making it turn over and over. Use a finger nail board (fine sanding) and smoothall rough spots. Then reset the bobbin case taking care to put the notch in the bobbin case in alignment with the proper spot in the machine (basically 5 o’clock) when looking at the round area where the bobbin case goes.

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1 Answer

Baby lock EMP6 problem. Machine works great then suddenly bobbin thread starts puling through the design. I have ajusted the tension on the thread, removed all of the thread, cleaned all of the tension...


Have you tried changing out the bobbin case? you may have a small burr or scratch. A new one cost about 20$ I think. I have had to replace mine before and it is always good to have a new one on hand.

hollie

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