11 - 41
Adjustment
Fig. 11 - 37
2
1
1
3
3
11.06.09 Manual cutting test
Requirement
1. When thread catcher 1 is on its forward stroke, it must not carry bobbin thread 3
forward too.
2. When thread catcher 1 is in its front position, the bobbin thread 3 must be positioned in
the middle of the marked area (see arrow).
3. After the trimming action, both needle- and bobbin thread must be perfectly cut, and
bobbin thread 3 retained.
● Sew a few stitches.
● Turn off the on/off switch.
● Carry out cutting test manually.
● Check Requirement 1 and readjust thread catcher 1 according to Chapter 11.06.02
Thread-catcher height if necessary.
● Check Requirement 2 and readjust thread catcher 1 according to Chapter 11.06.03
Thread-catcher position if necessary.
● Check Requirement 3 and readjust bobb-thread retaining spring 2 according to Chapter
11.06.06 Bobbin-thread retaining spring if necessary.