Operation Instruction SC201(1900A/1903A)
20
(3) When the type of lower plate that material does not come in closely contact with throat
plate is used, needle thread on the wrong side of material may be rolled in the seams
regardless of needle thread play or sewing length.
(4) When the thread clamp is used, and bobbin thread at the sewing start appears on the right side
of material, reduce thread tension at the sewing start (2 to 3 stitches) and bobbin thread
becomes less conspicuous.
[Example of setting ] Tension of 1 to 2 stitches at the sewing start is “20” when sewing
tension setting is “35”.
1. When the sewing length is short(less than
approximately 10mm), the end of needle thread
may protrude like beard even adjusting needle
thread shorter.
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