Replacing Upper Or Lower Fan Tray - Cisco ASR 5000 Series Installation Manual

Chapter 18

Replacing Upper or Lower Fan Tray

The upper fan tray draws air up through the chassis for cooling and ventilation. It then exhausts the heated air through
the vents at the upper-rear of the chassis.
The lower fan tray draws air from the front and sides and pushes it through the chassis for cooling and ventilation.
This chapter includes the following sections:

Determining Whether a Fan Tray Needs Replacing

Removing an Upper Fan Tray

Installing an Upper Fan Tray

Removing a Lower Fan Tray Assembly

Installing a Lower Fan Tray Assembly

What to do with the Failed Fan Tray
Caution:
may cause the system to overheat and result in component damage.
This chapter provides instructions for the removal and replacement of the upper and lower fan tray assemblies should
there be a partial or complete failure of either one.
Caution:
to the components. Failure to do so could result in damage to sensitive electronic components and potentially void your
warranty.
Do not operate the chassis without the fan tray(s) installed. Doing so even for short periods of time
During installation, maintenance, and/or removal, wear a grounding wrist strap to avoid ESD damage
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