Pfaff 1122 - Thread Check Spring

Adjustment
12 - 14
3
2
4
6
7
8
9
10
1
7 mm
12.05.12 Thread check spring
Requirement
1. The movement of thread check springs 3 and 6 must be finished when the needle point
enters the material ( spring stroke approx. 7 mm).
2. When the thread loop is at its largest while being passed around the sewing hook, the
thread check springs 3 and 6 must rise slightly from rests 1 and 9.
● Adjust rest 1 (screw 2) in accordance with requirement 1.
● To adjust the spring tension of thread check spring 3, turn screw 4 (screw 5).
● To adjust the spring tension of thread check spring 6, turn bush 7 (screw 8).
● Adjust rest 9 (screw 10) in accordance with requirement 1. (If the adjustment range is
too small, rest 9 can be screwed into another opening.)
● Adjust thread regulator 11 (screws 12) in accordance with requirement 2.
Fig. 12 - 13
12
11
+
-
109-089
5