JUKI LH-4128-7 Engineer's Manual page 37

1. Set the stitch dial at "3".
2. Loosen two screws
3. Move feed regulator to base pin
adjust so that a difference in stitch length becomes 0.2mm or less
between the normal feed stitching and the reverse feed stitching. Fasten
the setscrews (2 pcs.) of the feed regulator to base pin.
Adjustment Procedure
in the feed regulator base.
in the direction of the arrow to
Results of Improper Adjustment
– 33 –
o The stitch length for reverse feed
stitching will be different from that
for the normal feed stitching.