Fujitsu PRIMERGY RX2520 M5 Upgrade And Maintenance Manual page 320

Accessible drives
Removing the air grid
Figure 198: Removing the air grid
▶ Remove the four screws (see circles).
Keep the four screws - they will be reused for fixing the LTO drive.
▶ Remove the air grid.
CAUTION
▶
Keep the air grid for future use.
▶
If you remove the accessible drive again and do not replace it
with a new one, the air grid must be reinstalled to comply with
EMC regulations and to satisfy cooling requirements and fire
protection measures.
320 Upgrade and Maintenance Manual RX2520 M5