Brother bas-311hn Instruction Manual page 51

3353B
7. Loosen the two screws (9), and then remove the cover (10).
8. Loosen the bolt (11).
9. Move the movable knife connecting plate (13) 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 (12) is 9.5 to 9.9 mm.
10. After tightening the bolt (11), check the above position once more.
* Ignore the index mark on the needle plate.
11. Replace the cover (10).
12. Check that there is a gap of about 0 - 1 mm between the outside of the hole in the movable knife (12) and the ridge line
on the shuttle race thread guide (14).
BAS-311HN, BAS-326H
7. STANDARD ADJUSTMENTS
3354B
3356B
43