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(19) Thread trimmer presser lifter cam connection/disconnection
1. Loosen 2 setscrews
securing the presser lifter and thread trimmer cam (hereafter called “cam”)
.
2. Loosen the 2 setscrews
and remove the sensor slit
.
3. Remove the 4 setscrews
and take out the presser lifting motor
in the direction of the arrow. In some
cases, the bearing
and the motor shaft seem to be tightly coupled. Pull out the motor shaft in the direction
of the arrow straightforward in order not to hurt the bearing
.
At that time, the cam
may come down. Handle it with care, not to damage it.
(20) Thread trimmer and presser origin sensor adjustment
At the time of origin retrieval (Start Switch ON) in the test mode I07 (IP-410), the reference holes
A
and
B
of
the sewing machine frame come in coincidence with the reference hole
C
each of the thread trimming and
presser lifter cam
.
Standard Adjustment
Procedures of disassembling
E
D
A
A
B
C
A
Flat section