Adjusting The Clearance Between Needle And Hook - Janome MC230E Service Manual And Parts List

Adjusting the Clearance between Needle and Hook

The clearance between the needle and the rotary hook should be -0.10 to +0.05 mm.
Setscrew (A)
Rotary hook
set plate
Test pin
-0.10 to +0.05 mm
Setscrew (C)
Setscrew (B)
Tip of rotary hook
1. Remove the bed cover.
2. Remove the presser foot, needle plate and
bobbin holder. Replace the needle (#11) with the
test pin.
3. Loosen the setscrews (A), (B) and (C) and tighten
the setscrew (C) slightly.
4. Turn the hand wheel to bring the tip of the rotary
hook behind the test pin.
Adjust the clearance between the test pin and the
tip of the rotary hook to -0.0 to +0.05 mm by
moving the rotary hook set plate up or down.
5. Tighten the setscrews (A), (B) and (C) firmly.
6. Check the backlash between the rotary hook gear
and lower shaft gear and adjust the backlash if
necessary.
7. Attach the bobbin holder, needle plate and
presser foot. Replace the test pin with the #11
needle.
8. Attach the bed cover.
8