A) BUTTONHOLE LEVER GUIDE
1. Attach the automatic buttonhole foot R.
Loosen the set screw A and leave the clearance of 2.9 mm between the spring holder C
and slider B by moving the buttonhole lever guide C in this condition the buttonhole lever E
should touch the spring holder C slightly.
Tighten the set screw A.
B. BUTTONHOLE SENSOR
Turn the power switch on while pressing the reverse button, and then press BH1 at once.
"BH SENSOR H or L" will appear in the screen.
Lower the buttonhole lever E. Then leaves the clearance of 1.6mm between the slider B
and spring holder C.
Loosen the set screw G and move the buttonhole sensor base plate F from the right to
left slowly. At the position where the screen message changes from "BH SENSOR L" to
"BH SENSOR H", tighten the set screw G.
When the clearance between the spring holder C and slider B is:
* 1.4 mm, the screen shows "BH SENSOR H".
* 1.8 mm, the screen shows "BH SENSOR L".