Singer 99 Series, Service Manual

Page: 10 / 16

To Set the Needle Bar at the Correct Height
See that the needle is pushed up into the needle bar as far as it will go.
Also see that the timing gauge (H, Fig. 6) is set at the correct height by
having the top of the finger of the timing gauge centered on the upper timing
mark on the needle bar connecting stud (G, Fig. 6) when the stud is at its
lowest point as instructed on page 6.
Then turn the balance wheel over toward you until the lower timing mark on
the needle bar connecting stud (G, Fig. 7) is centered on the top of the finger of
the timing gauge (H, Fig. 7) on the upward stroke of the needle bar. When the
needle bar connecting stud is in this position, the needle bar should be set so
that the top of the eye of the needle will be about 1.16 inch below the point of
the sewing hook.
In case the needle bar is not set at the correct height, loosen the screw (Q,
Fig. 9) in the lower end of the needle bar connecting link (K, Fig. 7). This screw
can be reached when the needle bar is at its lowest point by inserting a
screwdriver through the hole provided for this purpose in the arm. After
loosening this screw, move the needle bar up or down in the needle bar
connecting stud until it is at the correct height as instructed above, then
securely tighten the screw (Q) in the needle bar connecting link.