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Chapter 10
Maintaining Hardware Components
This chapter describes how to maintain hardware components installed in the
router. S ome components, such as the Connector Interface Panel (CIP), require
no maintenance.
For information about returning a part to Juniper Networks for repair or
replacement, see “Contacting Customer Support and Returning Hardware” on
page 255.
Routine Maintenance Procedures on page 127
Maintaining Cooling System Components on page 127
Maintaining Host Module Components on page 131
Maintaining Packet Forwarding Engine Components on page 132
Maintaining Po wer Supplies on page 137
Routine Maintenance Procedures
For optimum router performance, perform the following preventive
maintenance procedures regularly:
Inspect the installation site for moisture, loose wires or cables, and excessive
dust. Make sure that airflow is unobstructed around the router and into
the air intake vents.
Check the status-reporting devices on the craft interface: system alarms, LEDs,
and LCD. See Craft Interface on page 27.
Inspect the air filters at the bottom front and left rear of the router, cleaning or
replacing it as needed for optimum cooling system performance. Do not run
the router fo r more than a few minutes without the air filters in place. For
maintenance instructions, see “Maintaining the Air Filter” on page 128.
Maintaining Cooling System Components
For instructions on maintaining cooling system components, see t he following
sections:
Maintaining Cooling System Components 127