Incorrect thread tension
- Even though the thread tension dial is set to the Standard/Basic setting, it may need to be adjusted depending on the combination of fabric, thread and needles being used.
- Make sure you use a bobbin that is best suited for your machine.
The first 2-4 stitches of a seam may become weak.Sew reverse/reinforcement stitches at the beginning of your sewing.
BM-3500/2600, GS2700, GS2786K, GS3700, GS3786K, Innov-is 900, Innov-is 950, Innov-is 980D, Innov-is 980K, Innov-is 985D, JS1750, XL-2120/2220/2230/2240, XL-5050/5060/5070
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