Operating instructions

9. Aid Programs
9.1 Center Knife Adjustment
Program P40 alters the incision of the center knife.
If a higher value is selected the incision moves to the outside at the
seam beginning and at the seam end.
With a smaller value the incision moves in the seam.
–
Set the "
Program
" switch to "
40
".
–
Press the "
STOP
" key.
The program is activated.
The lower left display line shows the current value for the center
knife incision.
–
Correct the set value with the "
+
/
-
" keys.
9.2 Setting the Bobbin Thread Counter (745-22;-23)
With the sub-classes
745-22
and
745-23
the bobbin thread is
monitored by a countdown counter.
The setting of this counter is made with program P41.
–
Set the "
Program
" switch to "
41
".
–
Press the "
STOP
" key.
The program is activated.
The lower display line shows the preset value.
The position to be set blinks.
–
Set the desired value for each of the positions with the "
+
/
-
" keys.
–
The next higher position is selected with the key "Σ".
–
By operating both keys "+" and "-" at the same time the counter is
reset to "
0000
".
Setting the value "0000" causes the bobbin thread monitor to
be shut off by the counter.
Note:
The set value multiplied by factor four is approx. the number of
possible stitches.
9.3 Changing the Positioning Point Manual/Automatic
Program P42 switches over between manual and automatic changing
of positioning point.
An automatic change is only possible when sewing a sewing length.
–
Set the "
Program
" switch to "
42
".
–
Press the "
STOP
" key.
The program is activated.
The set status is shown in the display.
–
The switch over between manual and automatic change is made
with key "Σ".
24