4-15
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-10
Chapter 4 Installing and Removing SFCs, RPs, MSCs, FPs, LSPs, PLIMs, and Associated Components
How to Install or Remove a Pillow Block
Installing a Pillow Block
This section describes how to install a replacement pillow block on the chassis after removing a damaged
pillow block. A pillow block is a bracket with a pin that is attached to the chassis above and below each
card slot. When you install or remove a card from the chassis, the card ejector levers hook into the pillow
blocks above and below the card slot to secure the cards to the slot and allow you to install and remove
the cards.
Prerequisites
Before performing this task, you must first open the front cosmetic doors (if installed). Have the pillow
block replacement kit (Cisco product number: CRS-4-PILLBLK=) at hand.
Required Tools and Equipment
You need the following tools and parts to perform this task:
•
ESD-preventive wrist strap
•
Phillips screwdriver
•
Pillow block replacement kit (Cisco product number: CRS-4-PILLBLK=)
The following items are included in the CRS-4-PILLBLK= pillow block replacement kit:
•
2 replacement pillow blocks
•
6 Phillips-head screws
Note
A Phillips screwdriver is not included in the CRS-4-PILLBLK= pillow block replacement kit.
Steps
To install a pillow block, follow these steps:
Step 1
Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection
sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
Step 2
Locate the slot where the pillow block was removed.
Step 3
Have the replacement Phillips-head screws near at hand.
Step 4
Position the pillow block and align the screw holes.
Step 5
Use a Phillips screwdriver to install the top left screw (located above the pillow block pin). (See item 1
in
Figure 4-9
.)
