Installing The T640 Standard Upper Front Fan Tray; Figure 118: Removing A Standard Upper Front Fan Tray; Figure 119: Installing An Upper Front Fan Tray - Juniper T640 Hardware Manual

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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, place one hand under the fan tray to support it and pull
4.
the fan tray completely out of the chassis.

Figure 118: Removing a Standard Upper Front Fan Tray

Installing the T640 Standard Upper Front Fan Tray

To install a standard upper front fan tray (see
Attach an electrostatic discharge (ESD) grounding strap to your wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Grasp the fan tray by its handles and insert it straight into the chassis.
2.
Tighten the captive screws on each side of the fan tray faceplate to secure it in the
3.
chassis.

Figure 119: Installing an Upper Front Fan Tray

Chapter 17: Replacing T640 Router Hardware Components
Figure 119 on page 233):
233