Question about White Sewing Superlock 1934D Mechanical Sewing Machine
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Posted on Jan 02, 2017
Couple of things I could think of: tension disks need cleaning, there is a site that tells how to clean them, maybe 2 as I recall. Other thing is it is a much older serger, (I have one I am slowly working on to bring up to working level), so it could be that a tension spring internally has lost its tension. It might need a trip to the repair man if that is the case. Another thing is are you using correct needles for the machine? Have you changed them recently? Even new needles can be bad, so if you have to change three times to triple check it can be worth it.
Posted on Sep 09, 2008
I was having this very same problem with my lower looper . I had been using the one needle stitching all afternoon and I was doing quite nice stitching. then I decided to put the right needle back in and do some overlock stitching and guess what I spent the next two hours fighting the looper problem. I had completely re-thread this machine at least 20 times now. I decided to take the needle out and re-insert it and re-thread it one more time (right lower looper- then upper looper- right needle- then left needle) was careful to pull all threads to the back and under the presser foot for about 6 inches.
Held on to the thread, lowered presser foot and did the chaining stitch. BINGO it didn't break, tried it with a piece of cloth and Perfect stitches. I have a Babylock BL402 and used tension settings left to right
4-3-3-3 and default settings for the rest.
Hope this helps someone someday.
Posted on Mar 29, 2009
Are you threading it correctly? I've had this problem twice, the first few times the thread was wrapped around different items (below the spool holder and then around the needle) the other times I threaded it wrong. Double check that the machine is threaded correctly with the manual. I've missed a step here or there and it does make a difference.
Posted on Jul 29, 2009
Sounds like the timing is off. Take the bobbin out of the bobbin case and lower the needle into the needle plate. As the needle starts on the upswing, the hook should meet the needle just above the needle eye on most machines. If it isn't meeting at that point then your hook timing will need to be adjusted.
Posted on Mar 17, 2010
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