Pfaff 491 - Needle Thread Tension Release

Adjustment
11 - 30
11.04.26 Needle thread tension release
Requirements
1. When the presser bar lifter is raised, the tension discs 3 should be pressed at least
0.5 mm apart.
2. When the roller presser is lowered, the tension must be fully effective.
● Align tension mounting plate 1 and pressure plate 2 according to the requirement.
Fig. 11 - 26
1
2
3
0.5 mm