Pfaff 1122 - Needle Thread Tension Release

Adjustment
12 - 22
109-053
12.06.05 Needle thread tension release
Requirement
When solenoid 5 is activated
1. the roller lever 6 should drop into the path of control cam 7 with a small clearance to
the bottom of the cam and
2. there should be a distance of at least 0.5 mm between the tensions discs 8.
Fig. 12 - 21
● Adjust screw 1 (nut 2) in accordance with requirement 1.
● Adjust cable 3 (nuts 4) in accordance with requirement 2.
5
1
2
3
4
109-054
0.5 mm
8
109-055
7
6