Don't know what machine you have. With my machine, I can pull the finger back a little so that the thread still wraps around it but is able to slip off the end of the stitch finger, ie do not push the stitch finger all the way in so there is no outlet for the thread. You can serge without the stitch finger, but it does change the character of the stitch, ie it may cause the fabric edge to buckle.
SOURCE: My brand new Kenmore serger
The loopers must be threaded before the needles.
Make sure that the needles are not threaded. Thread the loopers and have the loose ends behind the presser foot. Then re-thread the needles and place a scrap of fabric under the foot and sew. Make sure that the edge of the fabric is not to the right of the plate, but where it would be if the knife had cut it.
SOURCE: threads keep getting tangled when I try to serge.
If you mean the threads get tangled behind the presser foot then maybe this can help. Try pulling the threads gently as you guide the fabric through the first time. Also, I sometimes put a scrap piece of fabric under the presser foot with the edge lined up with the needles (so it is further back than normal). Then I gently press the speed control foot and pull on the threads. This allows the needles to start sewing right away on the fabric rather than giving the thread a chance to get tangled. Hope that helps!
SOURCE: Changed thread on serge pro SW 432. Now no chain or stitch.
Sergers can be tricky to thread.
Remove the thread.
Raise the antenna to it's highest position.
Open the tensions - setting zero.
Lift the presser foot.
Open the door on the serger and turn the handwheel until the upper looper is at it's highest point.
There should be a threading guide on the front of the machine or on the inside of the door.
Follow the threading sequence as this greatly affects the stitching.
Testimonial: "Did as you suggested--no luck. Then watched chaining process carefully--needle was too long to catch a loop. Reinserted needle. Voila!"
SOURCE: Where can I get parts
I don't know if you still need this information but you're looking for the stitch finger. If you contact Ron at a1sewingmachine.com he can get you the part.
SOURCE: My serger sews what looks
Without seeing it I would say that it has slipped out from the tension discs on top. Rethread and use both hands to pull on your thread as you are passing it through the tension discs so that it catches. I know, it is a pain but it is your best bet. This happens more frequently than you know.
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