Installing A T640 Front Fan Tray; Figure 89: Removing A Front Fan Tray; Figure 90: Installing A Front Fan Tray - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
188

Figure 89: Removing a Front Fan Tray

Installing a T640 Front Fan Tray

To install a front fan tray (see Figure 90 on page 188):
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.
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.
If you are installing the lower fan tray, follow these steps:
4.
Unlock the cable management system, and lower it to the fully lowered position.
a.
Rearrange the PIC cables in the cable management system. For more information
b.
about proper cable arrangement, see "Maintaining T640 PICs and PIC Cables" on
page 156.

Figure 90: Installing a Front Fan Tray

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