ADJUSTMENT
AND
OPERATION
OF
CONTROL
UNIT
I5 I
Optional
Functions
Bysetting
the
internal switchesand connecting external switches to
the
option connectors
as
required,
each
control box
can
be used with various sewing
machines
with underbed trimmer and allows
the
sewing
machine
to
be
used
as
a
standing-work
machine
or
an
automatic
machine.
For
further
details,
contact
the
service
agency.
1.
Internal
switches
ssssSsoci
cf+SsSo-fie
aa
SW1
tu
swzumuH
swHnmn
s»4
XC-AM
Internal
Switches
G1: Gain
switch
(to be
set
at
"ON")
A;
Standing-work
sewing
machine
high-speed
switch
(Not required for
the
external knob)
SL, +1:
Slow
start
switch
US:
Needle
UP
control
by back
tack
switch
PCS:
1-2
POSITION
switch
TB:
Back
tack
solenoid
at
thread
trimmer
S3L: Presser foot liftingcancel switch by lightheeling
RU: Reverser needle lifting switch
Usedto stopthe sewing machinenear the needle bar topdead center byreversing the motor
after
thread
trimming.
S6/TL: Thread trimming safety/thread trimming cancel select switch
Usedto switchthe sewing machineconnector 5 - 6 signalbetweenthe thread
trimming
safety S6 and thread trimming cancel TLfunctions.
IL:
Thread
trimmer
interlock
cancel
switch
Usedto cancelthe operationrestart disablecommandat the timeofthread
trimming.
Set toON
to restart operation after interlock
time
has
passed.
BM: Backtacking stitch
change
switch
Usedto set the backtacksolenoidoperation timingto matchthe length ofbacktacking stitch.
UP
DN-
N-2
~LJ
T_r
N-1
T_r
0
1
stitch
2
stitches
SL
OFF
ON
ON
+1
OFF
OFF
ON
N
i_r
i_r
BM
Backtack solenoid operation timing ON or OFF
OFF
ON
i \0\-\-
ON
On
OFF
-
22
-
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
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