SunStar KM-1080 Series, User Manual

Page: 21 / 43

21
4.9) Back tack button (thread trimming type)
Pressing the back tack button or reverse button
①
during
forward sewing will start reverse sewing immediately.
When you stop the machine and restart it by stepping
down on the pedal with the reverse button
①
already
pressed down, you can perform reverse sewing from the
beginning. When the machine is in a
“
stop
”
mode, you
can change up-down position of the needle bar by
pressing the reverse button. Lightly pressing the button
once will stop the needle bar in a high position.
Pressing the reverse button
①
twice within less than a
second will stop the needle bar in a low position. In
short, the button delivers two functions: one for reverse
sewing and the other for converting vertical position of
the needle.
4.10) Functional description of function switches
1) : Stitch length conversion switch
While the switch is turned off, the set value of the
stitch count dial attached to the arm is applied. While
the switch is turned on, the set value of the stitch
count conversion cylinder is applied.
2) : Auto backtack select switch
The switch selects the addition or deletion of the
initial and last backtack sewing function.
3) : Presser bar overlapping change switch
When pressing the switch, the lamp is on. Then
regardless of the set value at the top cover dial, the
overlapping portion of presser bar becomes 7mm at
maximum. When pressing it again, the lamp is off
and the set value at the top cover dial is applied.
4) : Supplementary thread tension switch
When the switch is not pressed, the tread tension is
low. When the switch is pressed, the dish is closed,
and the thread tension increases.
5) : Needle bar upper stop switch(1-needle KM-1080)
Regardless of the machine stop position, the switch sends the needle bar to the highest stop position.
6) : Seam guide operation switch(2-needle KM-1082)
The switch is used in case of using two needles. It creates sewing lines in parallel along the seam of the sewing
fabric.
7) : Left auxiliary thread tension switch
When the switch is not in operation, the thread tension is released. When the switch is pressed, the left auxiliary
dish is closed, and the thread tension increases.
8) : Right auxiliary thread tension switch
When the switch is not in operation, the thread tension is released. When the stitch is pressed, the right auxiliary
dish is closed, and the thread tension increases.
[Fig. 4-23]
①
KM-1080BL
KM-1082BL
KM-1082BL-7
KM-1082BL-7
(Option)
[Fig. 4-24]
KM-1082BLH
KM-1080BL-7
KM-1080BLH
KM-1080BLH-7