2 - 10
Adjustment
Fig. 2 - 09
2 mm
1
2
1
3
2
.13
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, bobbin thread
3
must be approx.
2 mm
behind the prong of thread catcher
1
.
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 2.05 Thread-
catcher height
if necessary.
●
Check
Requirement 2
and readjust thread catcher
1
according to
Chapter 2.06 Thread-
catcher position
if necessary.
●
Check
Requirement 3
and readjust bobb-thread retaining spring
2
according to
Chapter
2.09 Bobbin-thread retaining spring
if necessary.