47
5-thread safety-stitch seam
Program 09
Since the 5-thread safety stitch seam con-sists
of the 2-thread chainstitch and the 3-thread
overedge seam, you can refer to the correction
possibilities of these seam below and on page
49.
4-thread safety-stitch seam
Program 08
Since the 4-thread safety stitch seam consists of
the 2-thread chainstitch and the 2-thread
fl atlock, you can refer to the correction possibi-
lities of these seam below and on page 51.
Note: Attach the converter (see page 32), when
sewing a 4-thread safety stitch seam.
2-thread chainstitch
Program 01
When all tensions are correctly set, the needle
thread (blue) is just slightly visible on the
tunderside of the fabric.
The needle thread (blue) is too loose, causing
larger needle thread loops on the underside of
the fabric.
Set the blue thread tension to a higher value.
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