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9. How to correct the main shaft reference angle
1) Press and hold down
❶
on the sewing
screen and select "9. Hook timing adjustment
mode".
2
）
Placing the dial gauge against the needle
clamp, turn the handwheel to bring the needle
bar to its upper dead point.
After you have adjusted the origins of the motors (main motor, feed motor, presser motor and alternating vertical
movement motor), correct the reference angle of the main motor.
Angle display
3
）
Check the angle displayed on the screen.
4
）
Press
to return the screen to the sewing
screen.
5
）
Press
❶
on the sewing screen to select
"1. Memory switch", "1. Display all" and "U120.
Main shaft reference angle correction" in the
written order.
❶
