Pfaff 422

Adjustment
11 - 18
11.04.16 Needle thread tension release (on machines with Subclass -900/81)
Requirement
1. When stop 4 is actuated by hand there must be a clearance of at least 0.5 mm
between tension discs 3.
2. When stop 4 is in its resting position the tension must be engaged.
● Position pressure plate 1 behind tension mounting plate 2 according to Requirement.
Fig. 11 - 16
3
3
1
0.5 mm
0.5 mm
4
2