Control Cam (Final Adjustment) And Catch Spring - Pfaff 3568-12/22 Instruction Manual

Adjustment
13

Control cam (final adjustment) and catch spring

.07.10
13 - 41
Requirement
1. When the back edge of the thread guard 6 has just moved 6 mm past the center of
the bobbin case position finger 7, the thread catcher 8 is to begin with its forward
motion.
2. When the thread trimmer is in resting position, there must be a distance of 0.2 mm
between the catch spring 4 and the roller lever 9.
8
0.2 mm
4
5
Fig. 13 - 39
Bring needle bar to BDC.
Operate engaging lever.
Adjust the control cam 1 (screws 2) according to requirement 1 and move it against
retaining collar 3.
Mount catch spring 4 together with the cover disk and screw on screws 5 slightly.
Slide catch spring 4 up as far as it will go and align according to requirement 2.
Tighten screws 5.
9
6
2
1
2
6 mm
7
3