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Operation
To lock the sewing foot in place in top dead center:
1. Swivel the lever (1) down.
The sewing foot is locked in place in top dead center.
2. Swivel the lever (1) up.
The lock is removed.
Information
The sewing foot can also be lifted electronically using the pedal ( p. 56).
The lever (1) will then swivel up automatically.
4.5 Adjusting the sewing foot stroke
Fig. 28: Adjusting the sewing foot stroke
①
(1) - Knee button
The stroke can be adjusted between 0.5 and 9.0 mm.
To adjust the stroke:
1. Adjust the stroke of the sewing foot in the seam record set ( p. 94).
2. To switch on the maximum stroke while sewing in free seam sections,
press the knee button (1).
Information
This function will be locked in documented seam sections.
Sewing foot stroke and speed are interdependent.
The control detects the set sewing foot stroke using a potentiometer and
limits the speed. The values are preset on the control side.
40
Operating Instructions 550-D800 - 01.0 - 05/2023
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