Singer 9985 - Check and Adjustment; Height of Needle Bar

SERVICE MANUAL
15
d
CHECK AND ADJUSTMENT
1. HEIGHT OF NEEDLE BAR
Height of needle bar could be the cause for stitches to
skip. Check as the following procedures.
1. Set the pattern to [Utility stitch No.1] which is straight
stitch on center needle position.
2. Raise the needle bar to its highest point by turning the
handwheel toward you. Remove the presser foot.
Remove the needle plate. Lift up the bobbin holder
and remove it.
3. Turn the handwheel toward you until the needle
comes to its lowest point.
4. Then, the spacing between the surface of hook race
and the top edge of needle eye must be (4.9±0.1
mm).
If this spacing is not correct, adjust as follows.
5. Remove the light cover.
6. Remove the 3 screws (a, b) and remove the take up
lever cover and bracket (c) by sliding it upward.
1
4.9±0.1 mm
2
3
4
6
c
7
7. Raise the needle bar 4.9mm from its lowest point by
turning the handwheel.
Loosen the screw (d) on the needle bar holder. (2 mm
hex. wrench)
Adjust the needle bar so that the top edge of needle
eye is aligned with the surface of hook race.
Retighten the screw (d) and check the height again.
CAUTION: Do not change the needle bar direction at
this adjustment. The long groove of needle must be
facing frontwards.
8. Replace the take up lever cover and screws.
a
b