Pfaff 3811-3/55 Instruction Manual page 84

Adjustment
13 Lift of the vibrating presser
.06.16
 Lower presser foot 1 onto the needle plate.
 Set the stitch length to "4".
 Move vibrating presser 2 to its upper reversal point by turning the handwheel.
 Turn the eccentric pins 3 (screw 4) so that its largest eccentricity lies towards the needle.
 Move pins 5 (nut 6) into the elongated hole in the lever 7 until they abut.
 To preset the clearance between the vibrating presser 2 and the sewing plate, move the
 Turn the eccentric pins 10 (screw 11) in accordance with the rules.
84
Rule
With stitch length regulation "4" and attached adjustment gauge 12, the highest reversal
point of the vibrating presser 2 should have a clearance of 3.2 mm to the sewing plate.
5
7
8
10
Fig. 13 - 16
lever 8 (screw 9).
12
3
4
1
6
9
5
8
11
4
3
2
5
7
10
1