Question about Juki MO-644D Mechanical Sewing Machine
thread the upper looper first, then the lower looper. Next thread the needles. Always thread in this order.
Make sure you have the right needle for the thread you are using,and same thread is also in the bobbin.
. CHECK UPPER TENSION, BY PULLING SLIGHTLY, IF IT'S TIGHT, LOOSEN THE UPPER TENSION.your thread may be of the wrong size or chek the type of speed of your sewing, and the needle your are using.
thanks for contacting fixya.com
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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