Skips stitches doing straight and zigzag stitching. Had it serviced 3 or 4 times for this same problem and it works fine for a short time then starts to do it again
Also check that you are using the correct type needle, ie 130/705. If the needle is the incorrect type, it will not meet the hook at the correct time to pick up the bobbin thread.
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It sounds like it might just need a new needle which is the easiest thing to try. Also make sure it's threaded correctly. Happy sewing.
Check that your needle is inserted correctly.
SOURCE: Zig Zag Skip Stitch
your machine might have a problem with the rotary hook, it might need to get timed by a professional.
SOURCE: Zig Zag Not working on my Bernina 830.
Basically it is a matter of a stuck part. Flip open the top by prying up on the front or ends of the lid. You already noticed the hinges on the back. When you get it open, exercise the right hand lever on top (marked ZZ at bottom and 1-20 at top. If you look just to the right of this lever against the back wall you will see that it moves a little part back and forth into triangle shaped grooves. The part is not going completely into the grooves so drop some oil in there and exercise it a few more times, using your fingers if necessary to make the part move into the triangle grooves at the front and back. After a while it will loosen up where it should operate by itself smoothly . Hope this helps.
SOURCE: Bernina 830 won't zig zag, won't buttonhole, no decorative stitch
Basically it is a matter of a stuck part. Flip open the top by prying up on the front or ends of the lid. You already noticed the hinges on the back. When you get it open, exercise the right hand lever on top (marked ZZ at bottom and 1-20 at top. If you look just to the right of this lever against the back wall you will see that it moves a little part back and forth into triangle shaped grooves. The part is not going completely into the grooves so drop some oil in there and exercise it a few more times, using your fingers if necessary to make the part move into the triangle grooves at the front and back. After a while it will loosen up where it should operate by itself smoothly . Hope this helps, I know it will.
SOURCE: Skipping stitches while zig-zagging
If you have put a new needle in then the chances are the machine has gone out of time, you can either take it in to the repair shop or you can contact me and I will attach timing instructions [email protected]
SOURCE: Zig Zag Stitch not working
THis problem occurred as I was sewing on Neoprene. I was using Gutterman all-purpose thread and a size 80 needle. Tried switching to a size 70, then to size 90. Still unable to zig zag. After inserting a test sample of cotton, the zig zag worked perfectly, so I knew it was not a mecahnical problem. I switched needles again. This time to size 90 for stretch fabric. Voila! Problem solved.
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