30 PFAFF
32 Top feed lifting motion
Requirement: At stitch length “2” the top feed foot must rest on the bottom feed dog
when the latter has reached the top surface of the needle plate on its
upward stroke.
Adjust eccentric 1 (Fig. 1, screw 2.
33 Top feed foot position
Requirement: When the bottom feed dog is at the top of its stroke, the top feed foot must
be parallel with the bottom feed dog.
Adjust eccentric pin 3 (Fig. 2, screw 4).
34 Top feed synchronization
Requirement: At stitch length “3”, both top- and bottom feed motions must be the same
length.
.1 Compensate by shifting pin 5 (Fig. 3) in elongated hole (nut 6).
.2 Adjustment according to chapter 28 must be checked.