White SuperLock User Manual

Pucker
or waver-free
seams
Puckering
DIFFERENTIAL
FEED
APPLICATIONS
On
an
overlock
machine
with
no
differential
feed
feature,
puckering
and
wavering
are
always
unavoidable
on
some
materials.
For
example,
woven
fabrics
tend
to
contract
when
sewn.
On
the
other
hand,
knit
fabrics
tend
to
stretch
when
sewn.
Differential
feed
is
designed
to
minimize
puckering
and
wavering.
It
is
also
very
effective
for
gathering.
1.
Puckering
Puckering
tends
to
occur
on
woven or
sheer
fabrics.
To
obtain
pucker-free
seams,
set
the
adjustment
lever
at less
than
1.
2.
Wavering
Wavering
tends
to
occur
on knitted
or
stretchable
fabrics.
To
obtain
waver-free
seams,
set
the
control
lever
at
more
than
1.
3.
Gathering
Differential
feed
makes
gathering
easier.
Use
it
on
waistlines,
sleeve
heads,
sleeve
bottoms
and
ruffles,
etc.
Set
the
control
lever
between
1.5
and
2
to
obtain
the
best
gathering
effect
for
your
use.
IMPORTANT
The
exact
adjustment
depends
on
the
thickness
and
elasticity
of
fabric.
Even
the
stitch
length
can
influence
the
setting.
The
longer
the
stitches,
the
more
the
fabric
is
contracted.
Always
do
a
test run
with
a piece
of
actual
fabric
you
use
and
find
the
best
settings.
Wavering
26

White SuperLock Specifications

General

Brand	White
Built-in Needle Threader	Yes
Model	SuperLock
Stitch Width	7mm
Stitch Length	4mm
Buttonhole Styles	4-step
Warranty	25-year limited