Thread Check Spring And Thread Regulator - Pfaff 3827-2 Instruction Manual

Adjustment
14

Thread check spring and thread regulator

.26
14 - 28
Requirement
1. The thread check spring 3 must have finished its stroke by the time the point of the
needle enters the material (stroke approx. 7 mm).
2. The thread regulator 4 must be fixed into the elongated hole so that the thread check
spring 3 moves 1 mm by the time the hook has widened the thread loop to its
maximum.
4
3
1
Fig. 14 - 26
Turn the thread tension 1 (screws 2) in accordance with requirement 1.
Move the thread regulator 4 (screws 5) in accordance with requirement 2.
The stroke of the thread check spring 3 and the position of the thread regulator
4 are dependent on the type of thread and material used and should be
adjusted in accordance with the appearance of the seam.
5
2