Brother International MD-817 Service Manual - Page 17

Operation, Instructions

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OPERATION INSTRUCTIONS Motor control and control box use 88 * , bCal lull ,..i. , 0 00 0 * The power lamp will light up when the power switch 0 is turned on. * Sewing speed will increase as the speed control 0 is turned toward HIGH (clockwise), and will decrease as the control is turned towards LOW (counterclockwise). The sewing speed range varies from a minimum of 215spm to an adjustable maximum speed. * Start backtack sewing speed will increase as the backtack sewing speed control 0 is turned clockwise, and will decrease as the control is turned counterclockwise. The start backtack continuous sewing speed range is 215 to 1800spm. The end backtack sewing speed is set at 1800spm and cannot be adjusted. When the slow start switch 0 is switched to ON, the first two stitches (after thread trimming and needle stopping in the upper position) will be sewn at low speed. Sewing speed after these first two stitches is regulated by depressing the treadle. When the correction switch 0 is ON, the machine will sew in the correction stitch mode (215spm) when the actuator 0 is depressed while the machine is stopped. If the actuator is depressed during machine operation, the machine will enter the reverse sewing mode. The machine will stop with the needle in the down position if the machine is stopped after setting the needle position switch o to the needle down position. Conversely, the machine will stop in the needle up position if the needle position switch 0 is set to the needle up position. - 13 -

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OPERATION
INSTRUCTIONS
Motor
control
and
control
box
use
88
*
,
,
,.
.i.
bCal
lull
0
0
0
*
The
power
lamp
0
will
light
up
when
the
power
switch
0
is
turned
on.
*
Sewing
speed
will
increase
as
the
speed
control
0
is
turned
toward
HIGH
(clockwise),
and
will
decrease
as
the
control
is
turned
towards
LOW
(counterclockwise).
The
sewing
speed
range
varies
from
a
minimum
of
215spm
to
an
adjustable
maximum
speed.
* Start
backtack
sewing
speed
will
increase
as
the
backtack
sewing
speed
control
0
is
turned
clockwise,
and
will
decrease
as
the
control
is
turned
counterclockwise.
The
start
backtack
continuous
sewing
speed
range
is
215
to
1800spm.
The
end
backtack
sewing
speed
is
set
at
1800spm
and
cannot
be
adjusted.
When
the
slow
start
switch
0
is
switched
to
ON,
the
first
two
stitches
(after
thread
trimming
and
needle
stopping
in
the
upper
position)
will
be
sewn
at
low
speed.
Sewing
speed
after
these
first
two
stitches
is
regulated
by
depressing
the
treadle.
When
the
correction
switch
0
is
ON,
the
machine
will
sew
in
the
correction
stitch
mode
(215spm)
when
the
actuator
0
is
depressed
while
the
machine
is
stopped.
If
the
actuator
is
depressed
during
machine
operation,
the
machine
will
enter
the
reverse
sewing
mode.
The
machine
will
stop
with
the
needle
in
the
down
position
if
the
machine
is
stopped
after
setting
the
needle
position
switch
o
to
the
needle
down
position.
Conversely,
the
machine
will
stop
in
the
needle
up
position
if
the
needle
position
switch
0
is
set
to
the
needle
up
position.
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13
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