Question about Craft Master 4400 Mechanical Sewing Machine
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Posted on Oct 17, 2011
Hi. Loops on the underside of the fabric are generally caused by the upper tension being too loose. Use a size 12 needle, and size 50 thread with different colors in the upper thread and in the bobbin. Sew an inch or so, look at the stitch and adjust, tightening the tension just a bit at a time.
There's more detail in the tip I wrote about adjusting tension.
Hope this helps!
Posted on Aug 06, 2010
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Posted on Jan 02, 2017
Your tension is way too loose on top or too tight on the bobbin. Try adjusting the top tension one number at a time until you get it right. (Only adjust the bobbin tension as a last resort). Also you could have different thickness of thread in the bobbin than on the top or are sewing a very heavy fabric. Try adjusting the tension with same thread in both bobbin and top and use a normal weight fabric until you find the right tension to get you back to a normal stitch before going to a heavier fabric or thread.
Posted on Nov 19, 2009
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