28 PFAFF
30 Top feed driving motion
Requirement: When the longest stitch length is set and the needle bar is set 0.6 mm past
top dead centre (adjustment hole “1”, Fig. 1) top feed foot 1 (Fig. 2) must
not make any feeding movement when the feed regulator is operated.
.1 Adjust eccentric 2 (Fig. 3, screws 3).
.2 The slot in eccentric 2 (see arrow) must face forwards.
31 Top feed stroke
Requirement: The greatest clearance between top feed foot and needle plate when
- the stitch length is at “0”, and
- the presser foot is resting on the needle plate (Fig. 4)
- (on -706/82 the top feed foot is behind the needle: is 1.3 mm
.1 Set stitch length at “0” and lower presser foot onto needle plate.
.2 Increase presser foot pressure (knurled screw 4, Fig. 5).
.3 Basic setting of pin 5: eccentric side facing needle bar (screw 6).
.4 Basic setting of eccentric pin 7 (Fig. 6): eccentric side facing downwards (screw 8).
.5 Adjust clearance by shifting lever 9 (screw 10).
.6 Fine adjustment on eccentric pin 7 (screw 8).
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