Replacing A T640 Craft Interface; Figure 140: Installing The Rear Air Filter - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Replacing a T640 Craft Interface

254
Replace the air filter cover.
7.
Firmly tighten the captive screws at the top, center, and bottom of the filter cover to
8.
secure it to the chassis, using a Phillips (+) screwdriver, number 2.

Figure 140: Installing the Rear Air Filter

T640 Preventing Electrostatic Discharge Damage on page 386
T640 Cooling System Description on page 75
Maintaining the T640 Air Filters on page 180
Troubleshooting the T640 Cooling System on page 203
The craft interface is hot-insertable and hot-removable. When you install the craft
interface, allow several minutes for the display to reflect the current state of the router.
Before you remove the craft interface, remove the front upper fan tray. For instructions
on removing a front fan tray,
on page 117.
1. Removing a T640 Craft Interface on page 255
Installing a T640 Craft Interface on page 255
2.
see"Removing the T640 Standard or Quiet Front Fan Trays"
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