Thread Check Spring (Pfaff 1243 And On Machines Without -900/56) - Pfaff 242 Service Manual

Adjustment
11

Thread check spring (PFAFF 1243 and on machines without -900/56)

.04.19
11 - 21
Requirement
The motion of the thread check spring 5 5 5 5 5 should have ceased when the needle point enters
the material ( = approx. 7 mm
5
1
Fig. 11 - 19
Turn retainer 1 (screw 2) in accordance with the requirement.
Turn screw 3 (screw 4) to adjust the spring resistance.
Due to technical reasons, the length of the thread-check spring stroke can vary
a little in either direction.
7 mm 7 mm 7 mm spring stroke). 7 mm
3
2
4