Upgrading the Inlet Grille Screen
To ensure protection against debris getting through the lower grille and into the chassis bay, Cisco Systems provides a screen that you can install behind the lower grille.
This section describes how to install the inlet grille screen in the LCC.
To install the inlet grille screen kit (CRS-16-SCREEN-KIT) as an update to an existing system, you must:
- Remove the lower grille from the front (PLIM) side of the chassis.
- Remove the lower grille frame assembly that is currently installed.
- Install the new lower grille screen and frame assembly.
- Re-install the original lower grille on the front (PLIM) side of the chassis.
Required Tools and Equipment
You need the following tools and parts to perform this task:
- 8 in. long number 1 Phillips screwdriver—magnetic head preferable
- Lower grille screen and frame assembly
- Lower grille screen kit (Cisco product number: CRS-16-SCREEN-KIT)
Removing the Currently Installed Front Inlet Grille
This section describes how to remove the currently installed front lower grille from the chassis.
Prerequisites
There are no prerequisites for this task.
Steps
To remove the front inlet grille from the chassis, perform the following steps:
SUMMARY STEPS
- Remove the inlet grille by unsnapping the top portion from the ball stud snaps (see figure).
- Rotate the grille toward you on its hook hanger brackets, then lift it clear of the support, and set it carefully aside for later use.
DETAILED STEPS
Step 1 |
Remove the inlet grille by unsnapping the top portion from the ball stud snaps (see figure).
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Step 2 |
Rotate the grille toward you on its hook hanger brackets, then lift it clear of the support, and set it carefully aside for later use. |
Removing the Currently Installed Inlet Grille Frame Assembly
Now that the inlet grille has been removed, you must remove the lower grille frame assembly.
Prerequisites
Before performing this task, ensure that the lower grille has been removed from the front (PLIM) side of the chassis. See Removing the Currently Attached Upper Rear Grille for more information.
Steps
To remove the currently installed lower grille frame assembly, perform the following steps:
SUMMARY STEPS
- Use the Phillips screwdriver to unscrew the four captive screws, two on each side, that attach the inlet grille frame assembly to the chassis (see figure).
- Rotate the assembly forward, lift it away from the chassis, and set it aside.
DETAILED STEPS
Step 1 |
Use the Phillips screwdriver to unscrew the four captive screws, two on each side, that attach the inlet grille frame assembly to the chassis (see figure). |
Step 2 |
Rotate the assembly forward, lift it away from the chassis, and set it aside. |
Installing the Inlet Grille Frame Assembly and Inlet Screen
This section describes how to install the new inlet grille frame assembly and the inlet grille screen.
In this task, you must first remove the lower grille screen from the frame, because the screws that attach the frame assembly to the chassis are inboard of the screen—that is, the new screen is shipped already installed into the new frame assembly, but you cannot attach the new frame to the chassis until you remove the screen first. When the new frame assembly is installed, you can reinstall the lower grille screen into the new frame.
Prerequisites
Before performing this task, ensure that the lower grille and lower grille frame assembly have been removed. See c_Removing_the_Currently_Installed_Front_Inlet_Grille_1052819.xml#con_1052819 and c_Removing_the_Currently_Installed_Inlet_Grille_Frame_Assembly_1052847.xml#con_1052847 for more information.
Steps
To install the new inlet grille frame and screen, perform the following steps:
SUMMARY STEPS
- Use the Phillips screwdriver to remove the four screws, two on each side, that secure the inlet grille screen to its frame assembly; then carefully set the screen aside.
- Install the inlet grille frame assembly by aligning the four screws, two on each side, on the frame to the screw holes on the chassis and tightening them with the screwdriver.
- Attach the inlet grille screen to the frame assembly by aligning the four captive screws on the screen to the screw holes on the frame assembly and tightening the screws with the screwdriver.
- Attach the inlet grille by carefully inserting the tabs on the grille into the hook hanger brackets on the inlet grille frame.
- Press the grille firmly against the grille frame until it snaps onto the ball stud snaps.
DETAILED STEPS
Step 1 |
Use the Phillips screwdriver to remove the four screws, two on each side, that secure the inlet grille screen to its frame assembly; then carefully set the screen aside. |
Step 2 |
Install the inlet grille frame assembly by aligning the four screws, two on each side, on the frame to the screw holes on the chassis and tightening them with the screwdriver. |
Step 3 |
Attach the inlet grille screen to the frame assembly by aligning the four captive screws on the screen to the screw holes on the frame assembly and tightening the screws with the screwdriver. |
Step 4 |
Attach the inlet grille by carefully inserting the tabs on the grille into the hook hanger brackets on the inlet grille frame. |
Step 5 |
Press the grille firmly against the grille frame until it snaps onto the ball stud snaps. |