To Adjust Hook Timing - Singer s18 Service Manual

The movement of the needle from its lowest point to its highest point should be in the range of 3.25 to
3.55mm.
Hexagonal socket screw (A)
Lower shaft gear (C)
Needle,
size 14

TO ADJUST HOOK TIMING

Needle
plate
Bobbin
holder
Hexagonal socket screw (B)
Tip of hook
3.25 – 3.55mm
Lowest
position
[ To adjust ]:
1. Remove the machine base (refer to page 2)
2. Turn the power switch on and select stitch
pattern No. 2 (
3. Set the zigzag width at 0 and turn the power
switch off.
4. Remove the presser foot, needle plate and
bobbin holder.
5. Turn the balance wheel toward you to set the
needle bar at its lowest position.
6. Loosen the hexagonal socket screws (A) and
(B) on the lower shaft gear (C).
7. Move the needle bar between 3.25mm and
3.55mm from the lowest position.
8. Turn the lower shaft gear (C) until the tip of
the hook meets the right side of the needle.
9. Tighten the hexagonal socket screws (A) and
(B).
10. Attach the bobbin holder, needle plate and
presser foot.
11. Attach the machine base.
12
) in mode 1.