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30
Top feed driving motion
Requirement:
.1
Adjust eccentric 2 (Fig. 3, screws 3).
.2
The slot in eccentric 2 (see arrow) must face forwards.
31
Top feed stroke
Requirement:
.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).
28 PFAFF
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.
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
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