Electrical Connection; Checking The Nominal Voltage; Checking Positioning - Duerkopp Adler 550-12-12 Installation Instructions Manual

3. Electrical Connection

3.1 Checking the Nominal Voltage

3.2 Checking Positioning

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ATTENTION !
All work on the electrical components of the sewing unit may only be
conducted by electricians or appropriately trained personnel.
The mains plug must be pulled out.
The nominal voltage listed on the motor rating plate of the sewing
drive and the mains voltage must be the same !
The machine should position when the thread pulling lever is at its
upper dead center.
The setting of the positioning is usually made at the factory.
Checking positioning
–
Turn off the main switch.
–
Bring the thread pulling lever into a central position by turning the
handwheel 2.
–
Turn on the main switch. The machine positions.
If the thread pulling lever is not in its upper dead center then the
position must be reset.
Setting the position
–
Loosen the threaded pins 1 of the synchronizer ring 3.
–
Firmly hold the synchronizer ring 3.
–
Move the thread pulling lever into its upper dead center by turning
the handwheel 2.
–
Tighten the threaded pins 1 again.
–
Check the positioning again.
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