Needle Thread Tension Release - Pfaff 337 Adjustment Manual

13

Needle thread tension release

.04.10
Rule
When the presser foot is raised, both tension discs should be at least 0.5 mm apart.
Fig. 13 - 10
O Raise the presser foot with the hand lever.
O Align the pressure plate 1 behind the tension mounting plate 2 according to the rule.
The clearance of 0.5 mm is the minimum size and may be over 1 mm with
thick types of yarn.
The release pin 3 must not be loaded with effective tension.
1
3
Adjustment
2
0.5 mm
15