Pfaff 3117 - Needle Bar Stroke Setting

Adjustment
14 - 68
Fig. 14 - 68
4
2
1
3
34.5 mm stroke
38 mm stroke
1
3
4
Needle bar stroke 34.5 mm:
● Remove the closing stopper.
● Wind screw 1 in the right threaded hole.
● Loosen the screw which accessible through hole 2 and turn the eccentric 3 so that
surface 4 is facing downwards.
● Tighten the screw.
Needle bar stroke 38 mm:
● Wind screw 1 in the left threaded hole.
● Loosen the screw and turn the eccentric 3 so that surface 4 is facing upwards.
● Tighten the screw.
14.32 Needle bar stroke
Requirement
A needle bar stroke of either 34.5 mm ( standard ) or 38 mm can be set. The needle bar
stroke and the cover thread carrier setting must coincide with eachother.