Thread Check Spring - Pfaff 471 Instruction Manual

11.

Thread check spring

04.27
Requirement
1. The movement of thread check spring 5 must be completed when the needle point
enters the material ( spring stroke approx. 7 mm).
Fig. 11 - 27
Position rest 1 (screw 2) according to requirement 1.
To adjust the spring tension, turn screw 3 (screw 4).
For technical sewing reasons it may be necessary to deviate from the indicated
spring stroke or spring tension.
5
3
1
2
Adjustment
4
11 - 31