Adjustment
13.05.15 Thread check spring on the PFAFF 1296 with subclass -900/56
Requirement
The movements of thread check springs 1 and 6 must be finished when the needle points enter the material (=spring stroke of about 7 mm).
8 10 5
1
7 mm
6
42
9
3
Fig. 11 - 15
●To adjust the pressure of spring 1, turn screw 2 (screw 3).
●Adjust stop 4 (screw 5) according to Requirement.
●To adjust the pressure of spring 6, turn screw 7 (screw 8).
●Adjust stop 9 (screw 10) according to Requirement.
7
For technical reasons the length of the thread check spring stroke may vary upwards or downwards a little.
13 - 17