Bernina Artista 640 - While embroidering, the sewing needle hit a pin and broke. Now that I have replaced the needle, the alignment is off. The needle point comes down onto the embroidery presser foot.

Bernina calls this the stitch plate (where the feed dogs come up and the needle goes down). To remove the plate, turn off the sewing machine. Remove the sewing table if it is in place. Take off the presser foot and remove the needle. Open the free-arm cover (bobbin cover in the sewing machine front view, page 4) by tilting it down towards you. Press down on the back right corner of the stitch plate and lift the stitch plate off to remove it. See page 68 of the manual for the Bernina Artista 170 for the pictures that go with the above steps. Bernina has the manual on the product page: https://www.bernina.com/en-US/Machines-US/Series-Overview/BERNINA-artista/BERNINA-artista-170 . The current link to the manual is https://www.bernina.com/BERNINA/media/Support/Sewing_Quilting_Embroidery/artista/artista_170/Documents/EN/008853-73-04_Naehen_a170_EN_online.pdf .

I hope this helps.

Cindy Wells

Perhaps this will help:


https://www.bernina.com/en-US/Support-US/Machines/BERNINA-artista/BERNINA-artista-185


...

Hears the first video that came up on a youtube search: https://youtu.be/hJCRfpO_MVo

There is a way to adjust this though it is quite labor intensive and takes some specialized tools. My first recommendation would be to change the needle. The timing on BERNINA machines is far less likely to be off than on most other modern machines. The chances are far greater that your needle may be bent and is hitting the hook.

Most machines have a stitch counter, stitch forward and step back features. Check your manual and embroidery machine's screens for this.

IN case you have misplaced your manual I found this one for you. It's big so allow time to download.
http://www.itsastitchonline.com/mastery_on_the_web/Mastery_170_180_1-10-02.pdf

If you remove the hook on a 640, the timing of the machine will need reset, and that involves pinning the machine for precise timing!

Have you removed the broken pieces? The bobbin holder snaps out with 2 side holders to remove broken needle pieces. I don't think that the timing can get off by a broken needle. My first original bobbin holder got damaged which was made of hard plastic, from embroidering, and I ordered a stainless steel model which is available from a Bernina dealer, and all works very well for the last 2 years, there was never any problem.

your needle is too long

Best scenario is that the needle hit deflected and hit the hook that the bobbin snaps on to. When needles hit hooks they can leave a mark or burr that the thread will catch on when it comes around. Take out the hook and run your fingernail over the edge from the point back. If you find a burr get some crocus paper (very, very fine sanding paper and polish the burr off.
Next would be that your machine is knocked out of timing meaning a trech will have to reset it.

For a 640: Make sure the machine is off then Press the reverse button and the needle up/down button at the same time and keep pressing while turning on the machine until the service screen come up. Select the "i" icon and then the icon that has a picture with the clock and a question mark. That will show you the hours and stitch count used. To exit the service program just turn off the machine.
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