Maintain Hardware Components; Routine Maintenance Procedures; Maintain The Fan Tray - Juniper M10 Hardware Manual

Chapter 9

Maintain Hardware Components

Routine Maintenance Procedures

Maintain the Fan Tray

This chapter describes how to maintain hardware components installed in the router. For
information about returning a part to Juniper Networks for repair or replacement, see
"Return the Router or Its Components" on page 163.
•
Routine Maintenance Procedures on page 75
•
Maintain the Fan Tray on page 75
•
Maintain Packet Forwarding Engine Components on page 76
•
Maintain the Power Supplies on page 78
•
Maintain the Routing Engine on page 79
For optimum router performance, perform the following preventive maintenance procedures
on a regular basis:
•
Inspect the installation site for potential problems caused by moisture, loose wires or
cables, and excessive dust. Make sure that airflow around the router is unobstructed.
•
Check the LEDs on the craft interface and on hardware components. See "Craft
Interface" on page 14.
The fan tray installs into the rear of the chassis, as shown in Figure 3. To check the status of
the fans in the fan tray, issue the show chassis environment command. The output includes
an entry for each fan, as shown in this example:
user@host> show chassis environment
Class Item
...
Fans Left Fan 1
Left Fan 2
Left Fan 3
Left Fan 4
...
Status Measurement
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
Maintain Hardware Components
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