H
Timing between the rotating
hook motion and the needle
motion
Note: If you remove the presser foot, the throat
plate, and the feed dog, it makes easier to
adjust.
( 1 ) Set feed length to 6 mm.
( 2 ) Loosen all screws Ⓐ, Ⓑ, Ⓒ.
Note: Be careful not to disengage the large
gear and the small gear.
( 3 ) Lift the needle bar 2.4 mm from the lowest
position. Refer to timing marks shown in the
figure.
( 4 ) Slide the hook saddle right and left so that
the gap between the tip of the hook and the
scarf of the needle is 0.05 mm or lower.
( 5 ) Tighten screws Ⓐ, Ⓑ.
Note: Be careful not to overtighten screw Ⓑ.
( 6 ) Slide the large gear right and left so that the
tip of the hook position is in the center of the
needle and tighten screws Ⓒ.
Note: Check the large gear and the hook
saddle isn’
t in contact and its distance is
less than 3 mm.
( 7 ) Move the tip of the hook to the needle side
by turning the pulley.
( 8 ) Return the machine head to the original
position and adjust the needle guide position
so that it comes lightly in contact with the
needle.
HOW TO USE
Tip of
the hook
0.05 mm or lower
0.05 mm
（a）Position of the needle bar:
The lowest position
（b）Position of the needle bar:
2.4 mm lifted position from (a)
Screw Ⓐ
Screw Ⓑ
Screw Ⓒ
— 15 —
