C H A P T E R
5-1
Cisco 7600 Series Router Installation Guide
OL-4503-26
5
Removal and Replacement Procedures
This chapter describes how to perform removal and replacement procedures for Cisco 7600 series router
field-replaceable units (FRUs). It contains the following sections:
•
Preventing Electrostatic Discharge Damage, page 5-1
•
Removing and Replacing the Power Supply, page 5-2
•
Removing and Replacing the PEM, page 5-112
•
Removing and Replacing the Fan Assembly, page 5-119
•
Installing the Air Filter Assembly on a Cisco 7606 Router and the Cisco 7606-S Router (Optional),
page 5-126
•
Replacing the Air Filter on a Cisco 7609 Router and the Cisco 7609-S Router (Optional), page 5-131
•
Installing the Thermistor Module on a Cisco 7606-S Router, page 5-133
•
Installing the Thermistor Module on a Cisco 7609-S Router, page 5-134
•
Upgrading the Cisco 7600 Series Routers to a WS-SUP720-3BXL, page 5-136
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Caution
Use two hands to support the power supply during removal and replacement procedures.
Warning
During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly
touch the backplane with your hand or any metal tool, or you could shock yourself.
For instructions on installing and replacing modules, refer to the
Cisco 7600 Series Internet Router
Module Installation Guide
.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures. Port adapters and processor modules
consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI)
shielding and connectors are integral components of the carrier. Although the metal carrier helps to
protect the board from ESD, use a preventive antistatic strap during handling.