Pfaff 3811-2/45 Instruction Manual page 42

.1 Loosen both screws 2 (fig. 3).
.2 Using the handwheel, position the needle bar at its t.d.c. (= adjustment hole "1", fig. 1) and lock it in
this position with the cylindrical pin.
.3 Turn the lateral eccentric 1 (fig. 3) in such a way that the notch (arrow in fig. 2) points directly
downwards.
.4 Tighten the visible screw.
.5 Remove the cylindrical pin from the bearing disc.
.6 Tighten the second screw 2.
.7 Carry out a control.
42
With the needle bar at its t.d.c. (t.d.c. = adjustment hole "1") the notch in the
avoiding eccentric 1 should be directly under the axle centre
(see arrow in fig. 2).