17
Clearance adjustment 2
1. Remove the base.
2. Loosen the setscrews A, B and C, and tighten
setscrew C lightly.
3. Adjust the clearance by moving the hook setting plate.
Turn the handwheel and make sure that the clearance
between the needle and the tip of the rotary hook is
-0.10 - +0.05 mm.
4. Tighten the setscrews A, B and C firmly.
* After adjusting the clearance by the procedure of
clearance adjustment 2, check the backlash between
hook drive gear and lower shaft gear, hook timing and
needle bar hight. Adjust, if necessary.
5. Attach the base, bobbin holder, needle plate, presser
foot and needle.
Setscrew C
Setscrew B
Setscrew A
Hook setting plate
Clearance between needle and tip of the rotary hook
The clearance between needle and the tip of the rotary hook should be between -0.1 and
+0.05 mm.
