UTILITY
STITCHES
3-Thread/4-Thread Overlook
- Using the left needle, a 3-thread over-
lock 7.0 mm wide can be sewn.
- Using both needles, a 4-thread over-
lock 7.0 mm wide can be sewn.
- Using the right needle, a 3-thread over-
lock 3.7 mm wide can be sewn.
N.B.
Whenever sewing with 3-thread, remove
the needle and tighten the needle clamp
screw you are not using.
3-Thread Rolled/Narrow Hem
By disengaging the instant rolled/narrow
hem device, your machine is ready to sew
a rolled or narrow hem on light weight
and sheer fabrics.
The tension settings for the rolled or
narrow hem are slightly different from
those of the regular 3-thread overlock.
Refer to the following illustrations.
(A) Rolled hem (Right needle only)
Decrease the upper looper thread
ten-
sion slightly and increase the lower
thread tension as required so that the
upper looper thread (a) is completely
rolled down to the underside of the
fabric.
(B)
Narrow hem (Right needle only)
Increase both looper thread tensions
slightly so that the looper threads are
firmly locked together on the edge of
the fabric.
Sew on a scrap of fabric and adjust
the tensions according to the illustration,
depending on the desired finish. It is
recommended to use stretch threads,
such as woolly nylon in the upper looper
or both loopers.
N.B.
If the fabric tends to pucker, guide it
by gently pulling it to the back with your
left hand, and at the same time lightly
holding it with your right hand, for good
stitching results.
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