Jema JM-988, Manual Book

Page: 9 / 18

Button sewing machine(JUKI type):1900 and 1903 series
Proper position for installation of sensor fixing support
Fig.1 Before the button feeder machine sensor is installed Fig.2 After the button feeder machine sensor is installed
Button sewing machine brother type/438D series 438FX siries
Fig.3 Electromagnet connector position(438D) Fig.4 Electromagnet connector position(438FX)
Fig.5 After the sensor is installed(438D/438FX)
Installation method:
the lowest level. Then install the button feeder’s sensor on to the screws. Adjusting to make the
distance between sensor and connector is 0.5mm(Fig.2).
Take the white fastener out of the machine (Fig.1), Adjust the trimming rod to
8
Installation method:
with the automatic button feeder’s sensor, then connect on the PCB.(Fig.3 4 5)
Before installation, pill out the electromagnet sensor wires, connect together