SunStar KM-1170BLX, User Manual

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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
When the switch is turned on, the lower positioned
dial among the two stitch length setting dials
attached to the machine is applied. When the switch
is turned off, the higher located dial among the two
stitch length dials 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 the
presser bar overlapping volume is changed to the value
set at the top cover dial B. When pressing it again, the
lamp is off. Then the value set at the top cover dial A
becomes the presser bar overlapping volume.
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
Regardless of the machine stop position, the switch sends the needle bar to the highest stop position.
6) : Seam Center Guide Operation Switch (KM-1172 Only)
The seam center guide operation switch works at the 2 needles and it is used to stitch symmetry line on the
material with stitching line.
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.
①
[Fig. 4-28]
[Fig. 4-29]
KM-1170BLX
KM-1172BLX
KM-1172BLX-7
KM-1172BLXH
KM-1172BLX-7
(Option)
KM-1172BLX-7
(Option)
KM-1170BLX-7
KM-1170BLXH