IBM 3151 Manual To Operations page 26

Step 3. Attaching the stand (optional)
a
b
Customers who do not have the stand (optional):
Skip this step, go to page 2-7 .
Customers who have the stand (optional):
If a stand is available, do this step.
Turn the video element upside down. While pushing the two
latches
D
down, slide the tilt foot in the direction of arrow
tJ '
and remove it.
Locate the four slots on the video element and the four hooks on
the stand.
Slots
Hooks
Chapter 2. Setup Procedures
2-5