Electrical Connection; Function Sequence - Duerkopp Adler 558 Operating Instructions Manual

5.2 Electrical Connection

The transformer in the controls of the upper thread catchers is equipped with
connections for following mains voltages:
At the factory the transformer is connected to 1 ~ 380 V.
–
With other mains voltages change the connection on the primary side of the
transformer accordingly before commissioning.

5.3 Function Sequence

–
After the machine is turned on the switching piece mounted on the material
support plate operates switch b3.
Thread catcher 1 lowers with the clamped upper thread 2 to the material.
–
Appropriate to the set buttonhole length the sewing drive turns on and begins with
the right seam.
The upper thread end placed by the thread catcher is thereby overcast and sewn in.
–
Shortly before reaching the buttonhole eye switch b3 falls off of the switching piece.
Thread catcher 1 moves back into its upper position.
–
During sewing of the buttonhole eye the upper toothed segment 5 with stopper
angle 4 leaves its extreme right position.
The slewably bearinged thread catcher changes from the insertion to the catch
position, e.g. from the right to the left buttonhole seam.
–
After finishing the left buttonhole seam the sewing drive turns off in the needle high
position.
The upper thread is trimmed.
(Continuation see the following page)
ATTENTION
All work on the electrical components of the upper thread
catcher may only be conducted by electricians or
appropriately trained personnel. The mains plug must be
pulled.
1 ~ 200 V
1 ~ 220 V
1 ~ 380 V
1 ~ 415 V
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