－
20
－
7-2. Adjustment of the position between the needle and the shuttle hook
(1) Turn the power switch OFF.
(2) Turn the sewing machine pulley by hand then, move up the needle bar (No.1) from the
lowest position and stop it at the position (No.2) where the needle bar timing mark C is
matched to the needle bar bushing bottom line.
NOTE If the needle class is DP
×
5, match the needle bar timing mark D to the needle bar
bushing bottom line (No.2).
(3) Open the cylinder cover (No.3).
(4) Remove the bobbin case (No.4).
(5) Turn the hook retainer lever (No.5) then, remove the hook retainer (No.6).
(6) Loosen the driver setscrew (No.9) then, move the driver (No.10) and adjust the shuttle hook
point (No.7) to be matched with the center line (No.8) of the needle.
(7) After the adjustment, tighten the driver setscrew (No.9) and put the bobbin case (No.4), the
hook retainer (No.6) and the hook retainer lever (No.5) back to the original location then,
close the cylinder cover (No.3).
1
3
2
5
10
9
6
8
7
4
D
C
