Cisco Systems Cisco CRS-1 manual Removing a Power Tray Air Filter

Chapter 3 Installing and Removing Air Circulation Components

How to Install or Remove Air Circulation Components

Step 4 Reinstall the lower chassis grille:

a.Position the grille in front of the air intake slot on the lower front side of the chassis and press it gently into place. Make sure that you align the guide pins on the lower corners of the grille with the guide pin holes on the chassis.

b.Use a medium flat-blade screwdriver to tighten the two captive screws (on for each side) that hold the grille to the front of the chassis.

Removing a Power Tray Air Filter

This section describes how to remove a power tray air filter. For further information, see the “About Line Card Chassis Airflow” section on page 3-1. For complete information on regulatory compliance and safety, see Regulatory Compliance and Safety Information for the Cisco CRS-1 Carrier Routing System.

The power tray has a serviceable air filter that is inserted into the lower chassis grille, just in front of the power tray (see item number 4 in Figure 3-8).

Figure 3-8 Power Tray Air Filter

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1	Chassis air filter	3	Power tray and power modules
2	Air intake grille	4	Power tray air filter

Prerequisites

No prerequisites exist for this task.

Caution Never operate the line card chassis without an air filter. Doing so can result in damage to the hardware.

	Cisco CRS-1 Carrier Routing System 4-Slot Line Card Chassis Installation Guide
3-12	OL-10971-07