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3-14. Adjusting the material edge detector
Material edge detector
❶
detects the presence /
absence of the material at the beginning and end of
sewing.
When the material is present, the green LED (
A
) and
the orange LED (
B
) light up at all times.
When the material is absent, only the green LED (
A
)
lights up.
The detecting device of the sewing machine has
been factory-adjusted at the time of shipment so
that it detects the presence / absence of the material
without additional adjustment. However, the detect-
ing device may fail to detect the material properly
depending on the type of material used.
In such a case, adjust the detecting device of the
sewing machine by turning control knob
❷
.
[Adjustment procedure]
* The orange LED (
B
) lights up even when the ma-
terial is not present on the sewing machine.
→
Turn control knob
❷
toward the "min".
* The orange LED (
B
) goes out even when the ma-
terial is present on the sewing machine.
→
Turn control knob
❷
toward the "max".
Material is
present
Material is
absent
min
max
❶
❷
WARNING :
When adjusting the sensor, neither put your hand close to the needle entry area nor put your foot on
the pedal in order to protect against injuries.
D
L
min
max
A
D
L
min
max
A
B
