Question about Bernina Sewing Machines
Most sergers on the market have needles that decend on an angle. Only a few are not made that way. Don't try to straighten it, the rest of the machine is designed with that "slant" in mind. Breaking thread in a serger can be many different things. Here are a few simple checks:
1. Change the needles
2. Make sure the thread is pulled deep into each tension unit, sometimes the thread will "ride" on the outside of the discs instead of being deep between the discs.
3. Check the needle plate and the loopers for rough areas. Sometimes the needles strike these parts and cause "burrs" which can grab the thread and not let go of it properly and it breaks or shreds the thread.
4. Some needle plates have pin like guides pressed into them. The sewing needles decend between these plate guides, however sometimes when a serger jams they can be broken. Verify that they are still there. They are very important for proper stitch formation, If they're gone, a new needle plate is needed.
I hope this helps
Posted on Oct 07, 2009
Testimonial: "was very interesting reading thanks. since I asked the question I have had the machine back together and my wife has done a fair bit of sewing."
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Posted on Jan 02, 2017
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