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Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide
OL-6256-17
Chapter 4 Installing and Removing Line Cards, PLIMs, and Associated Components
How to Install or Remove a Pillow Block
Step 7 Install the lower left screw (located below the pillow block pin). (See item number 4 in Figure 4-15.)
Step 8 Repeat this procedure for the card slot’s other pillow block if necessary.
What to Do Next
After performing this task, replace any cosmetic covers.
Removing a Pillow Block
This section describes how to remove a damaged pillow block from the chassis. 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-PILLBLK=) at hand.
Required Tools and Equipment
.You need the following tools and parts to perform this task:
• ESD-preventive wrist strap
• Pillow block replacement kit (Cisco product number: CRS-PILLBLK=)
The following items are included in the CRS-PILLBLK= pillow block replacement kit:
• 2 replacement pillow blocks
• 6 Torx-head screws
• 1 T10 Torx screwdriver (See item 1 in Figure 4-16.)
Steps
To remove a damaged 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 pillow block to be replaced. Use the T10 Torx screwdriver to remove the lower right screw.
(See item number 2 in Figure 4-16.)