Singer 20U31 - SET PRESSER BAR CORRECT HEIGHT

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
b. Loosen the two feed dog screws. (Fig. 21)
c. Set feed dog in correct position and securely tighten the two screws.
d. Replace bed plate and press it firmly in place.
Feed Dog Screw
Fig. 21
TO SET PRESSER BAR AT CORRECT HEIGITT
CHECK:
1. When presser bar is in its raised-position there should be a clearance
of 6.35 mm between underside of presser foot and top surface of throat
plate. (Fig. 22)
2. When presser bar is at its highest point and needle bar at its lowest,
top of presser foot should clear the lower end of needle bar.
SETTING:
1. Remove needle, and loosen presser bar pressure regulating thumb screw to
decrease spring tension.
2. Turn machine pulley toward you to lower feed dog below throat plate
surlace.
3. Raise presser bar lifter and loosen presser bar guide bracket set screw.
4. Place a block approximately 6.35 mm thick on top of throat plate, and
bring presser foot down to rest finnly upon the block. (Fig. 22)
S. Make sure the presser bar guide bracket is firmly in contact with presser
bar lifter, then lightly tighten guide bracket set screw. (Fig. 23)
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