Automatic Needle Threader Adjustment - Singer 4423 Service Manual

3-8 Automatic needle threader
adjustment
- Remove the face plate and turn hand wheel
to raise needle bar to its highest position.
- Loosen the screw (a) of the threader stopper
(b). (1)
- Move the stopper (b) upward and the
threader hook will become higher.
Move the stopper (b) downward and the
threader hook will become lower.
- Adjust the stopper to the proper position
for entering needle hole freely. (2 / 3)
- Fasten the screw (a) of stopper, and be sure
the stopper (b) should be placed correctly.
(1)
