Pfaff 1525 Instruction Manual page 78

Adjustment
11 Tansmission linkage (only on the PFAFF 1526)
.06.08
● Set the thread trimmer at its resting position.
● Adjust transmission linkage 1 (screws 2) according to Requirement.
11 - 40
Requirement
With the thread trimmer in its resting position, transmission cranks 3 and 4 must stand
parallel with each other.
-
+
3
Fig. 11 - 36
If problems occur in thread catching on the left sewing hook, the catcher stroke
can be increased (+) or decreased (-) by turning transmission crank 3.
2
1
4