ADJUSTMENT
AND
USE
OF
CONTROL
SYSTEM
1.
SELECTION
OF
POSITIONS
1
AND
2
Select
the
machine
stop
position by use
of
the
select switch on
the
panel.
Position
2
• • :
Position
1
When position 1 is selected,
the
thread is trimmed following a
turn
by a heel-down operation on
the
pedal.
2.
PEDAL
OPERATION
The 2-step pedal operation feature allows
the
operation of run, thread trimming, and automatic
rise
of
presser
foot.
Pedal
Operation
Position
Setting
Position
1
Position
2
Pedal
Operation
TOE
DOWN
to
NEUTRAL
Needle
stops
at UP
position.
Needle
stops
at
DOWN
position.
NEUTRAL
TO
SLIGHT
HEEL
DOWN
Pressure
foot
goes up.
Pressure
foot
goes
up.
11/
Step
2
' ' ' /
/'
Step
1
^
Toe
down
Neutral
(machine
start)
NEUTRAL
TO
HEEL
DOWN
One
turn
and
thread
trimming,
then
presser
foot
goes
up.
Needle
from
UP
to
DOWN,
half
turn
and
thread
trimming,
then
presser
foot
goes
up.
Heel
down
Neutral
Note 1: Variable speed run from low
to
high speeds is available depending on pedaling strokes.
Note 2: Since presser
foot
rise is
output
to
the
presser
foot
up
connector,
use solenoid valve (DC 24 V).
Note 3: Use optionally available Type LD-C2,
04,
or
06
solenoid box for tack-stitching.
3.
ADJUSTMENT
OF
PEDAL
OPERATION
PRESSURE
3.1
Adjustment
of
Pedal
Tow-down
Force
Pedal
tow-down
pressure
can
be
adjusted
by
changing
the
hooking
position
of
the
tension
spring
on
the
lever.
Note
that
too
weak
pressure
may
cause
malfunction
due
to
unstable
lever
stop
position.
B A
3.2
Adjustment
of
Pedal
Heel-down
Force
After
loosening
the
nut
"A",
turn
the
bolt
"B"
to
adjust
spring
pressure.
After
adjust
ment,
tighten
and
secure
the
nut
"A".
4.
ADJUSTMENT
OF
RUNNING
SPEED
Tension
spring
Lever
(1)
Adjustment
of
maximum
speed (speed
obtained
when
pedal is fully
stamped)
Two
volumes
for
changing
maximum
speed
are
provided
inside
the
control
box
and
on
the
exterior
panel
of
control
box.
The
external
volume
allows
adjustment
in
the
range
of
maximum
to
low
speeds
which
have
been
set
by
the
internal
volume
"H".
The
internal
volume
"H"
is
factory-set
at
the
following
speeds.
No.
of
Poles
Internal
Volume
"H"
Setting
Adjustable
Range
by
External
Volume
2
poles
2000
spm
Max.
speed
to
200
spm
To
select
speeds
which
are
outside
the
aforementioned
range,
adjust
the
internal
volume
"H".
Since
the
internal
volume
"H"
Is
marked
at
2
locations
(with
2500
spm
and
4500
spm)
as
shown
in
the
following page, use
these
marks
as guides.
For
finer
speed
setting,
use a
tachometer,
etc.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
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