Replacing The T640 Standard Rear Fan Tray; Removing The T640 Standard Rear Fan Tray - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Replacing the T640 Standard Rear Fan Tray

234
T640 Cooling System Description on page 75
Maintaining the T640 Fan Trays on page 181
Troubleshooting the T640 Cooling System on page 203
T640 Preventing Electrostatic Discharge Damage on page 386
Removing the T640 Standard Rear Fan Tray on page 234
1.
Installing the T640 Standard Rear Fan Tray on page 235
2.

Removing the T640 Standard Rear Fan Tray

The rear fan tray is mounted vertically on the right side of the rear of the chassis. The fan
tray weighs about 10 lb (4.5 kg).
CAUTION: To maintain proper cooling, do not operate the router with the
rear fan tray removed for more than 1 minute.
To remove the rear fan tray (see
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Loosen the captive screws on the top and bottom of the fan tray faceplate, using a
2.
Phillips (+) screwdriver, number 2.
Grasp the handles and pull the fan tray halfway out of the chassis.
3.
WARNING: To avoid injury, keep tools and your fingers away from the fans
as you slide the fan tray out of the chassis. The fans might still be spinning.
When the fans stop spinning, grasp the handles and pull the fan tray completely out
4.
of the chassis.
Figure 120 on page 235):
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