Duerkopp Adler 743-221 Manuel d'instructions d'installation - Page 9
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4.5 Checking the Positioning
The sewing unit should position when the handwheel is in position
between B and C.
Checking the positioning
–
Turn the sewing unit off.
–
By turning the handwheel, bring the thread lever into a middle
position.
–
Turn the sewing unit on.
The sewing unit positions.
Setting the position
–
Loosen the set screws of the synchronizer.
–
Hold the synchronizer collar 1 fast.
–
Turning the handwheel in position between B and C.
–
Check the positioning again.
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