This is something that is very common with machines that do not have the automatic "needle up" when the machine stops stitching. Don't be put off by having to raise the needle bar up to remove your work. It is all part of the process and once you get used to doing it, you'll do it automatically without thinking. You can also slow your stitching so that when you do stop, you will get better at stopping when the needle is all the way up (takes some practice). Something else that helps release the thread is raising the presser foot which releases the tension on the thread.
Not to familiar with the industrial machines. However, even with domestic models. the position of the 'needle' bar at the time you remove your fabric, does make a difference as to weather it pulls our smoothly or, you are going to get that "extra" loop. Needle should be half way up or all the way. maybe this might help
Sewing Machine Tech
SOURCE: Thread is bunching underneath fabric
Needle in correct? Be sure your bobbin is not in upside down and turning the wrong way. Possibly the hook that the bobbicase fits in/on has been hit by a needle and caused a burr that is catching the thread as it comes around. The burr would have to be polished off or hook replaced. The machine could be slightly out of time also.
SOURCE: Bottom thread will not catch
Unplug the machine and remove the needle plate so that the bobbin case if fully exposed. Lift out the bobbin case and the cup that it sets in will be visible. Locate the "hook" on this cup. It is a finger with a sharp point at the upper edge of the cup. The hook is what grabs the thread from the needle while sewing.
If the hook passes by the needle AFTER the eye of the needle is above it, you timing has slipped and the machine must be taken in for repair.
If the hook catches the thread from the needle, put everything back together and try threading again.
SOURCE: Jammed thread.
To address my needle thread tangling (horribly) in the bobbin compartment, I rethreaded the bobbin. I cleaned the bobbin and the feeder feet, I changed the bobbin and the thread. I changed the tension on the needle thread and the bobbin thread. NO FIX! Then, I changed the needle - the problem was fixed instantly. I sewed awhile and then put the original needle back in. No problem. I think perhaps that the problem is being caused by the needle getting out of alignment somehow during sewing. If you are having the same issue, try it. It can't hurt!
SOURCE: thread from the needle wraps around the bobbin case and knots
hi! there,
wrong set up made this thing goes wrong,well
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instruction follow specielly set thread and
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SOURCE: Top thread gets caught on crescent piece holding in bobbin case
If you have the manual take a better look at how to put the bobbin in the case,
sounds like you are putting it in wrong,
make sure you put the bobbin in with the thread com-ming off the bobbin in the right direction (left or right) if not put in the right way you will get what you are saying
ALSO: bring up the bobbin thread your self by turning the hand wheal and bring the thread a few inches to the back of the needle and hold when starting to sew the first 2-5 stitches.
when you do not hold the thread the machine will pull the thread in the bobbin area and cause problems.
you will get use to holding and it will get easier.
hope this helps
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I'm actually having the same problem. I'm having to turn the hand wheel every time to release it, which really takes away some ease of use. The needl position hasn't made an difference.
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