20
9500
(C)
(B)
(A)
Adjusting Clearance between Needle and Hook
The clearance between needle and rotary hook should be -0.10 to + 0.05 mm.
1 Remove the needle, needle plate, bobbin holder,
and bed cover, and attach the Test pin .
2 Turn the power switch “ON” and select the pattern
No. 8, then set the zigzag width at “ 7.0 ” by pressing
“ADJUST” key.
3 Loosen Screws (A), (B), (C) and tighten Screw (C)
temporarily.
4Turn the handwheel toward you and adjust the
clearance between the Test pin and the Tip of
rotary hook to - 0.10 to + 0.05 mm by moving
the Rotary hook set plate up or down.
5 Tighten the screws (A), (B), (C) firmly.
6 Check the rotary hook driver gear and the lower shaft
gear backlash.
If gears mesh or engage tightly or loosely, check
“Adjusting Backlash between Hook Drive and Lower
Shaft Gear”.
7 Reattach the bed cover,bobbin holder, needle plate,
extension table and needle.
q
q
w
e
q
w
e
–0.10 to + 0.05 mm