Acer Network Device Altos R520 User Manual page 59

To install the power distribution board cover:
1 Observe the ESD precautions and pre-installation instructions
described on page 39.
2 Lower the power distribution board cover to the chassis (A).
3 Tighten the thumbscrew to secure the cover to the chassis (B).
4 Observe the post-installation instructions described on page 40.
B
A
49
TP02229