7. STANDARD ADJUSTMENTS
BAS-326H-484, BAS-326H-484 SF
37
7-5. Adjusting the needle and rotary hook timing
Turn the pulley (1) by hand in the direction of the arrow to raise the needle bar from the lowest position until the lowest
reference line on the needle bar (reference line B) is aligned with the lower edge of the needle bar bush (2), and then
loosen the two set screws (4) and move the rotary hook to adjust so that the rotary hook tip (3) is aligned with the center of
the needle.
7-6. Adjusting the needle clearance
Turn the pulley (1) in the direction of the arrow to align the rotary hook tip (2) with the center of the needle, and then loosen
the two set screws (3) and move the rotary hook forward or back to adjust so that the clearance between the needle and the
rotary hook tip (2) is 0.01 to 0.08 mm.
4685M
4686M
4687M
4667M
4688M
4667M
