MODEL 3128
11
NEEDLE DROP
TO CHECK:
When the needle swings in maximum zigzag width, the distance between the both ends of needle hole
in the needle plate and the needle drop positions should be equal. If not, make an adjustment as
follows:
ADJUSTMENT PROCEDURE:
1. Remove the face cover (see page 4).
2. Set the pattern selector dial at maximum zigzag width position.
3. Turn the setscrew to adjust the left and right needle drop positions.
4. Attach the face cover.
Note: Check the hook timing after this adjustment.
MECHANICAL ADJUSTMENT
SETSCREW
BOTH CLEARANCE SHOULD BE EQUAL
