Duerkopp Adler 511 Service Instructions Manual page 20

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===== 180°-disc =====
16
1
Adjust 180° disc
–
Loosen screw 4 on the coupling and leave the Allen key inserted to
prevent accidental turning.
–
Turn crank 1 by hand into the position indicated in the display.
–
Tighten screw 4 at the coupling.
–
Press the "OK" key.
If the adjustment is correct, the automatic bartacker is positioned in
such a way that the crank 1 is exactly behind the needle bar bush 2.
The following menu appears:
–
Check whether the needle bar crank is in the position indicated in
the menu.
–
If necessary, change the position of the crank to the position
described above.
Press the "OK" key.
–
Then press the "OK" key three times in order to go to the altered
reference position.
–
Check whether the crank 1 is parallel to the needle bar bushing 2.
–
If necessary, repeat the procedure.
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