White SuperLock User Manual

SETTING
DIFFERENTIAL
FEED
Differential
feed
control
lever
Set
by
simply
turning
the
differential
feet
control
lever
in
the direction
desired referrin
to
the chart
below.
The
adjustment
can
be
made
between
0,
(Minimal
effect)
and
2
(Positive
effect
These
settings
give
the best
ratio
of feeding
For normal
sewing,
the
lever
should
be
st
at
1.
The
lever
can
be
reset
even
while
sewing.
When
the differential
feed
control
lever
is
St
at
its
maximum
of
“2”
and
you
attempt
t
reset
the
stitch
length
dial
at
more
than
“4’
the
lever
returns
to
“1”
automatically,
th
avoids
jamming
which
may
be caused
b
excessive
material
feeding.
EFFECTANDAPPLICATION
TYPEOFFEEDING
SETTING
]
FEEDRATIO
REAR:
FRONT
Waver-free
seams,
Gathering
Positive
differential
1—2
feed
No
differential
feed
Neutral
feed
1
—
Pucker-free
seams
Minimal
differential
0.7
— 1
feed
20

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