ZyXEL Communications NSA-220 PLUS Quick Start Manual page 7

5. Place the disk on a flat surface with the screw holes facing up. Place
the disk tray on top of it and secure it with the screws as shown.
6. Slide the tray back into the disk bay. Make sure the screw hole is at
the top. Push the tray in all the way so the screw hole at the top is
flush with the internal frame.
7. Put the disk tray retaining screw back in.
ENGLISH
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