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Juki MO-735 Mechanical Sewing Machine Questions & Answers
How do I adjust the bottom thread tension on the 2 needle cover stitch?
Go back to the tension adjustments that were doing well with other fabrics.
You may need to go to a smaller size needle, and a finer thread. Sometimes I use a wooly nylon in my looper because it is very stretchy, but be careful when you pull it through as you are threading it because it will also break easily if you don't have your tensions full open as you are pulling it through.
Start out by buying a sheet or roll of Solvy. You can either cut it into strips to lay on top of the material as you sew or under it if you prefer. It should make the material lay flat as it sews. I have used tissue paper before under it to make it lay flat and keep it flat to make the looper thread stretch itself out as it sews.
If your looper thread tension was too tight on other fabrics too, that is a whole other problem.
I bought Juki MO-735 serger on eBay (new, brom
Go back to the seller. If it was listed as new and does not work, the seller should either repair, replace, or refund. Note--you may need to get eBay involved in case the seller refuses to address the issue. EBay will refund your money and reverse the charge to the seller.
Machine breck Dowan
Have it repaired by a trained Juki machine technician....
Too expensive to try yourself.
My yuki serger run too
Domestic sergers usually sew 1500 stitches per minute, you can't increase this. You can make the stitch longer which will move a bit more fabric through with each stitch but obviously you need the stitch to hold the fabric too.
If you find this is not fast enough for the volume of work you need to do, then shop around for an industrial machine. Usually built into a table, and designed to feed very fast. Try the Juki website, they do a big range of industrial machines such as these
http://www.juki.co.jp/industrial_e/products_e/apparel_e/cat6/
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