Operating instructions
2.2 Internal Switches
In the control behind the display there are three pre-selector switches
for setting certain machine parameters.
CAUTION !
The switches are only evaluated once when the sewing unit is turned
on.
After changing a switch setting switch the main switch off and then on
again or operate the 
STOP
 key.
DIP-Switch b417:
745-22;-23  745-24
b417 Function OFF ON OFF ON
.1 Stitch Length 2,5 mm 3,2 mm 2,5 mm 3,2 mm
.2 Stitch Condensation Stitch Length 0,8 mm 1,4 mm 0,8 mm 1,4 mm
.3 Maximum Sewing Length 180 mm 200 mm 180 mm 200 mm
.4 Thread Monitor ON OFF  No function
.5 Locking Vacuum (b8 / s14) OFF ON OFF ON
.6 Late Opening of the Flap Clamps OFF ON OFF ON
.7 with Reverser Device OFF ON  No function
.8 Continuous Operation OFF ON OFF ON*
(only in combination with .4 "OFF")
* Thread monitor is turned off
745-22;-24
: b417.7 = OFF
745-23
:   b417.7 = ON (with Reverser Device)
Dial b401: Dial b402:
Sewing Revolutions Operation Mode of the Left Transport Clamp
b401 = 1 2500 1/min b402 = 0 No function
b401 = 2 2750 1/min b402 = 1 Lower left transport clamp
b401 = 3 3000 1/min  separately
b402 = 2 Lower left transport clamp with the
 right 
DIP-Schalter 
b417 b401 b402
on
off
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