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③ Sensor detection adjustment
a. Turn the detection switch to the MAX.
b. Turn the detection switch 180 degree to the MIN in
reverse like the Figure 78.
c. Adjust the sensor detection to make sensor lamp comes
on when there is not sewing material and goes out when
there is sewing material like "② Check the normal
operation of a sensor".
Tip) When the sensor lamp does not show ON/OFF properly, adjust the detection switch by turning left or right (counterclockwise
or clockwise).
You must be well acquainted with the sensor detection adjustment method when adjusting the
sensor detection.
Caution
(2) Clearance between the sensor and the thread trimming
device
The clearance between the sensor and the thread trimming
device is about 36mm and the cutting stitch number should
be decided by considering this clearance and the stitch length.
The basic setting value is the 2mm pitch.
(Related parameter: Group A No.41, No.48)
Check the OFF-status condition of a power switch before adjusting.
Warning
44
a
b
[ Figure 78 ]
[ Figure 79 ]
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