7. ASSEMBLY
BAS-311H
80
After installing the needle plate while referring to “7-11. Thread trimmer mechanism”, carry out the following adjustment.
3362B
3363B
1. When the cam gear (60) is turned, the position of the top of the stepping foot driving lever (61) changes back and forth, so
turn the cam gear (60) to move the stepping foot driving lever (61) to the back position (the position in the illustration).
2. Loosen the two nuts (63) and turn the joint (64) to adjust the height of the roller (62) so that it is 155.5 mm above the top of
the needle plate.
3. Set the height of the presser bar (65) to 41 mm above the needle plate, align the center of the presser foot (66) hole and
the needle hole, and then tighten the bolt (67).
4. Set the height of the presser foot (66) to 22 mm above the needle plate, and then tighten the screw (68).
5. Turn the cam gear (60) in the direction of the arrow to move the stepping foot driving lever (61) forward (to the dotted line
position shown in the illustration).
6. Set the needle bar to the timing position.
7. Loosen the nut (69) and turn the bolt (70) to set the height of the presser foot (66) to 0.5 mm above the needle plate.
