Epson A881391 - Manual (Page 13)

Attaching the Tilt and Swivel Base
Before you attach the tilt and swivel base, cover your work area
with a blanket or foam pad to avoid scratching the monitor
during assembly. Then follow these steps:
1. Carefully set the monitor face down on the padding so the
bottom of the monitor is facing you.
2. Locate the two latches and the four sets of hooks on the top
portion of the base.
14” Super VGA Color Monitor 5