MODEL 3128
15
NEEDLE BAR HEIGHT
MACHINE SETTING
1. Stitch selector:
" ".
TO CHECK:
When the tip of shuttle hook meets the left side of the needle in ascending travel of the needle
from its left and lowest position, the distance between the top of the needle eye and the tip of
the shuttle hook should be in the range of 2.9 - 3.5 mm.
ADJUSTMENT PROCEDURE:
1. Remove face cover (see page 4).
2. Set the pattern selector dial at maximum zigzag with and needle drop position is at "left".
3. Open the shuttle cover.
4. Remove the shuttle race ring.
5. Turn the handwheel toward you until the tip of the shuttle hook meets the left side of the
needle.
6. Loosen the needle bar connecting stud screw "A".
7. Adjust the height of the needle bar by moving the needle bar upward or downward
without turning it.
8. Tighten the setscrew "A".
9. Attach the shuttle race ring.
10. Attach the face cover.
MECHANICAL ADJUSTMENT
NEEDLE BAR
A
TIP OF SHUTTLE HOOK
MEETS LEFT SIDE OF
NEEDLE
2.9 - 3.5MM
