Duerkopp Adler 550-12-12 Operating Instructions Manual - Page 7
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Caution Risk of Injury !
Turn main switch off.
Set the thread regulator only with the machine switched off.
Elastic sewing threads:
–
Turn the handwheel until the thread drawing lever 5 is in its lowest
position.
–
Loosen screws 3.
–
Set the thread regulator 4.
The thread hole in the thread drawing lever 5 must be visible
below the thread regulator 4.
–
Tighten screws 3 again.
–
Guide the needle thread down over the forward bow of the thread
regulator 4.
Non-elastic sewing threads (e.g. cotton):
–
Turn the handwheel until the thread drawing lever 5 is in its lowest
position.
–
Loosen screws 3.
–
Set the thread regulator.
The thread hole in the thread drawing lover 5 must be visible
above the thread regulator 4.
–
Tighten screws 3 again.
–
Guide the needle thread down in front of the forward bow of the
thread regulator 4.
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