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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
Standard Adjustment
Procedures of disassembling
A
Flat section
When origin retrieval (at start switch on) is conducted in the test mode I07 the standard holes of the sewing
machine frame (
A
(ø3) and
B
) are aligned with the standard hole
C
of the thread trimmer and presser lifter
cam
.
B
C
E
D
A
(ø3)