Duerkopp Adler 550-16-26 Operating Instructions Manual - Page 11
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4.8 Changing the Needle
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3
Caution Risk of Injury!
Turn the main switch off .
Change the needle only with the sewing machine turned off.
–
Loosen screw 1.
–
Push the new needle into the drilled hole of the needle bar 3 up to
the stop.
ATTENTION !
The furrow 2 of the needle must show to the hook point.
–
Tighten screw 1.
ATTENTION !
After a change to another needle thickness the clearance of the hook
to the needle must be corrected (see Service Instructions).
The non-observance of the above correction can lead to following
faults:
–
Change to a thinner needle: - Missing stitches
- Damage to the thread
–
Change to a thicker needle:
- Damage to the hook point
- Damage to the needle
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