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9. How to correct the main shaft reference angle
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.
1)
❶
2） Placing the dial gauge against the needle
3） Check the angle displayed on the screen.
Angle display
4） Press
5） Press
– 12 –
Press and hold down
screen and select "9. Hook timing adjustment
mode".
clamp, turn the handwheel to bring the needle
bar to its upper dead point.
to return the screen to the sewing
screen.
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 on the sewing
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