Needle Keeps Moving While Sewing and Bobbin Wont Thread

The top thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle
8. Try a different spool or cone of thread
to find a manual, we have to know the model number of the machine
to to

The needle thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle

Hi
You seem to have done everything as correctly as expected.
There are some minor things that could be disturbing yet.
Make sure that needle is exacly correct in her place and that the thread isthread from the correct side. One thing I knowworks wellwhen sewing thick parts is to hold the fabric in such a way that it is a bit streched under the needle and to let the machine go slowly over the thick bits.
Hope this will be of some help
Kolbrun

Upper thread breaks
1.needle may be in backwards
Correct needle insertion
Correct needle insertion is mandatory for proper use of sewing machine.
Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
2.upper tension may be to tight--try 3 to 5
3.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
4.thread may be hanging up in bobbin case--check area for loose threads or lint
???
Lower thread breaks
The most probable cause of lower thread breaking is improperly wound bobbin
1.always start with a empty bobbin
Never wind one color over the other
2.choose thread that is identical in color & type as the one to be used for upper threading
3.wind the bobbin evenly across & in layers
4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
5.bent bobbin--replace
6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin .

try changing the top thread tension to 3 or 4

also rethread the machine just in case the thread is hung up somewhere

take the bobbin out & put the bobbin in reverse of what you did before

you said you changed the needle, check to make sure it in correctly,, the flat side goes to the back of the machine, push it all the way up before tightening the screw

Most machines can sew on jeans fabric, but you may need to go slowly or even hand-turn the needle when crossing thick seams to keep from bending or breaking your needle.

Bobbin: It won't matter if you use plastic or metal bobbins.

Needle: You should use a heavier needle - you can purchase 'jeans' needles, or use the heaviest sharp or universal needle you have.

Tension: For tension adjustment, you can follow the guidelines in your sewing machine manual but you'll also need to adjust the tension based on sewing on scraps of the fabric. If you are sewing light-weight denim, the settings are pretty much the default/normal settings. As you increase the weight/thickness of the fabric and seams to cross, you'll need to loosen your pressure foot tension. If you use decorative 'jeans' thread or topstitching thread, you'll need to loosen your needle tension.
*Always test on scrap fabric to make sure the stitches are forming properly. It is best to make small adjustments to your tension settings, then test, then adjust and test, until it is right. If you sew that weight of fabric often, make note of your tension settings inside your machine manual to save you some time the next time you sew.
I hope this helps.

I called the Bernina dealer and they said the timing was probably off and needed to brought in. 4-5 day turn around and about $70. That's if it doesn't need parts. The dogs don't get new halloween costumes this year. I don't have 4-5 days to wait.

Hello,
Here are several things to try.

* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but consult your manual), 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 and 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 and 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.


* Un-thread your machine and remove your bobbin. Clean any loose thread or lint out of your
bobbin case. Re-thread your machine, reinsert and re-thread your bobbin.

* Change your bobbin. There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.

Also, before 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.

I hope these solutions help you.

if your machine's needle threads from front to back, make sure that the flat part of the needle shank points to the rear of the machine. If it threads from left to right, the flat side should face right, etc.

Be sure needle is inserted correctly with the flat side in the proper position. Rethread the machine and try again. If it still won't work you have a timing problem which requires a technician or a good mechanic.
sewman7