Feed-Dog Height - Singer 4423 Service Manual

3-15 Feed-dog height
When the feed dog is in it's highest position it
should be 0.9 to 1.05 mm above the surface of
the needle plate.
- Set the stitch length dial to "4".
- Remove the presser foot and free arm
cover.
- Lift needle to its highest position.
- If its not between 0.9mm~1.05mm.
Loosen the screw (a) and adjust the screw
(b). (2)
Clockwise = the feed dog will be raised.
Counter-clockwise = the feed dog will be
lowered.
- After adjusting tighten the screw (a).

.~.mm