20
Lower gear
3.70 to 4.00 mm
Lowest needle position
Needle #14
Bobbin holder
Setscrews
Hook
Tip of hook
Hook
Mechanical adjustment
Hook timing
The amount of ascending travel of the needle bar from its lowest position to the position (Needle drop position 0.0) where the tip
of the rotary hook exactly meets the right side of the needle should be 3.70 to 4.00 mm
Tip of hook meets the
right side of the needle
(Needle drop position 0.0)
1. Remove the bed cover (see page 3).
2. Attach the needle #14.
3. Turn the power switch ON. Select straight stitch ( ).
Set the needle drop position at "0.0".
* Do not turn the switch OFF.
4. Remove the presser foot, the needle plate and the bobbin
holder. (see page 4)
* Cover the needle plate with the fabric to prevent
damaging the needle plate when removing.
5. Turn the handwheel toward you to lower the needle at its
lowest position.
6. Loosen the setscrew of the lower shaft gear.
7. Turn the handwheel toward you to raise the needle bar
further 3.85 mm from its lowest position.
8. Turn the lower shaft gear until the tip of rotary hook meets
with the right side of the needle.
Tighten the setscrews of the lower shaft gear.
* Check the needle bar height after this adjustment.
(Needle drop position 0.0)
