11
Adjusting Clearance between Needle
and Hook Point
• The standard clearance between the needle and hook point should be
-0.10 to +0.05 mm.
<To adjust>
Select the maximum width zigzag stitch ( ).
Remove the base cover (see page 2). Remove the needle plate and bobbin holder.
Replace the needle with the test pin. Loosen the setscrews (B) and (C). Slightly loosen
the setscrew (A).
Turn the handwheel toward you to bring the hook point behind the test pin.
Adjust the clearance to -0.1 to +0.05 mm by moving the hook base plate up or down.
Tighten the setscrews (A), (B) and (C) securely.
Check the backlash of the hook drive gear and lower shaft gear.
Note: Adjust the backlash if neccessary (see page 12).
Attach the base cover.
Replace the test pin with the needle. Attach the bobbin holder and needle plate.
Needle plate
Bobbin holder
Test pin
Hook point
Setscrew (A)
Setscrew (B)
Hook base palte
Setscrew (C)
–0.1 to +0.05 mm
