Hp 13-10 Electro-Pneumatic Rapid Stroke Adjustment - Duerkopp Adler 550-767 Operating Instructions Manual

5.14 HP 13–10 electro-pneumatic rapid stroke adjustment
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The sewing-foot stroke and stitch rate are interdependent. The control
unit detects what foot-stroke has been set by means of a potentiometer
and restricts the speed of rotation accordingly. The values are pre-set
in the control unit.
In free seam sections the maximum stroke can be activated while
sewing with knee switch 1.
CAUTION: DANGER OF INJURY!
Turn off the main switch!
The sewing-foot stroke and rocker switch may only be adjusted with
the machine turned off.
Setting the function of the knee switch
The function of the knee switch is activated on the motor with the
parameter 138.
Activate the maximum stroke while sewing
–
Press knee switch 1.
Once knee switch 1 is pressed (switch mode) the maximum
sewing-foot stroke remains effective until it is switched off by
pressing knee switch 1 again (stop mode).
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