7. STANDARD ADJUSTMENTS
41
BAS-341H, BAS-342H
7-10. Adjusting the position of the movable knife
1. Open the top cover and tilt back the machine head.
2. Turn the pulley (1) by hand to lower the needle bar to its lowest position, and push the thread trimmer solenoid (2) as far
as it will go.
3. With the collar (3) inserted into the groove of the thread trimmer cam (4), turn the pulley (1) by hand to set the driving lever
(5) to the reverse position (when the thread take-up (6) is close to its lowest position).
4.
Remove the rubber cap (7).
5.
Loosen the bolt (8).
6.
Move the movable knife connecting plate (10) back and forth to adjust so that the distance from the ridge on the right
side of the needle plate to the ridge on the movable knife (9) is 9.5 to 9.9 mm.
7.
After tightening the bolt (8), check the above position once more.
＜
View from side of thread trimmer cam
＞
5255Q
5233Q
Reverse position
5232Q 3499B
3482B
3500B
4041M
(position where driving lever
is at its lowest point)
