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Kenmore Sewing Machine Model# 3851551600 When sewing bobin thread gets knotted. What am I doing wrong?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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kent581
  • 87 Answers

SOURCE: 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.

Posted on Mar 18, 2009

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Mongo32
  • 111 Answers

SOURCE: When sewing the bobin thread tangles and jams

upper tension/threading wrong?

Posted on Jul 08, 2009

WonderTech
  • 268 Answers

SOURCE: my kenmore sewing machine model 385.18221 is not

Hello,
Here are several solutions to try.

- Re-thread your machine. It may be threaded incorrectly (backwards).

- Raise your feed dogs if your machine has this feature.

- When you start to sew a seam, hold the upper and bobbin thread tails. Hold them back and out of the way as you sew your first couple of stitches. This will keep them from getting caught in your machine.

- Reinsert your needle and make sure it goes all the way into the holder and that it’s positioned correctly – usually with the flat side away from the bobbin, but consult your machine’s manual to be sure.

- Change your needle, it may be blunt, bent, or otherwise damaged.

- Your fabric may require a different needle. Generally, heavier fabrics require larger needles and thinner fabrics, smaller needles. You may also need a larger needle if you’re sewing through many layers of fabric. And make sure to use a ballpoint needle for knit fabrics and a sharp needle for woven (or a universal needle for either). Make sure your needle is appropriate for the type of thread you’re using.

- Adjust the pressure of your pressure foot. It may be too light for your fabric.

- Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both. And use a good quality, brand name thread.

- Adjust your thread tension, It may be too tight or too loose.

- Change your needle plate. Try switching to a needle plate with a smaller hole (a straight stitch needle plate).

Important Note: After changing your needle plate, check to make sure your needle aligns perfectly with the smaller hole before starting to sew. A misaligned needle could hit the plate and break, which could be dangerous. And make sure to change your needle plate back for zigzag and other wide stitches.

I hope these solutions help you.


Posted on Sep 24, 2009

  • 1 Answer

SOURCE: how to stop bobin thread from knotting

cotton bunching behind material

Posted on May 08, 2010

  • 1788 Answers

SOURCE: when I thread my machine

It is your top threading, totally rethread, then with presser foot up, pull on top thread, it should feed smoothly, now put the presser foot down, pull thread, it should barely move. This should seat the thread in the tension discs.

Posted on Dec 24, 2010

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1 Answer

I have a Kenmore Model #385.12814490. Serial #307664. When I start sewing, the thread gets knotted up by the bobbin. My material comes out with lots of long looped knotted thread.


It's called bird nesting or thread nesting.

Install a brand new needle.
Remove the top thread from the machine.
ALWAYS RAISE the presser foot and rethread from the beginning.
Set the upper tension to the midway point and then tweak it.

...

Oct 12, 2017 | Kenmore Sewing Machines

1 Answer

My machine drops stitches, bobin hangs up, thread knots up. I have cleaned the bobin case and feeder. What can I do to fix the problem?


This may sound very simple, but try putting in a new needle. If the needle is blunt or has a burr on it, that could be the cause of your issues.

If it is a drop in bobbin style machine you may also have a "needle nick" on the plastic bobbin case. The thread can get caught up on those little knicks causeing it to get caught up or fray.

You can pollish down the little knicks with a very fine sandpaper to smooth them out.

Apr 21, 2011 | Elna 2007 Mechanical Sewing Machine

1 Answer

Putting the bobbin in. I keep thinking I am doing it right and then it winds up in a big knot underneath


There is a right way and a wrong way to wind the bobin and set it into the machine. You may also not have the threaded seated properly in the thop tension

Aug 14, 2010 | Husqvarna Scandinavia 100 Sewing Machine

2 Answers

How to stop bobin thread from knotting


When loading the bobbin there is most likely not enough tension on the thread letting it overlap incorrectly. Try wrapping thread around a tensioner when filling and that should help. That way the bobbin is rolled as tight as the tension on the upper thread when sewing.

Apr 13, 2010 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

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It might be tension to tight, threaded wrong or the bobin isn't thread the right way.

Apr 17, 2009 | Kenmore 15208 Mechanical Sewing Machine

2 Answers

I have model 8280 and the bobbin thread keeps bunching up on the bottom. I have tried to rethread it but it keeps happening.


i think your putting in your bobin backwards,
to check put your bobin in and hold bobin , and bobin case by thread if it unrolls its backwards,
hope this helps!!

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2 Answers

Upper Thread Breaks!!!


If you have not oiled your machine then it is best you do so, the machine is dry.or make checks on your bobin case it could be bend or needs to be ajdust.or worn out.good luck.

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