Removing The T640 Cable Management System; Removing The T640 Front Fan Tray; Figure 57: Removing A Front Fan Tray - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

Removing the T640 Cable Management System

Removing the T640 Front Fan Tray

102
The cable management system is located below the FPC card cage. The cable
management system weighs approximately 5 lb (2.3 kg).
To remove the cable management system:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Using a 3/8-in. nut driver, unscrew the nuts on the corners of the cable management
2.
system.
Grasp the bottom of the cable management system and pull it straight out from the
3.
studs on the front of the chassis.
The upper front fan tray is located above the FPC card cage, and the lower front fan tray
is located below the air filter. Each fan tray weighs about 18.6 lb (8.4 kg).
To remove the front fan trays (see Figure 57 on page 102):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the corners of the faceplate of one of the fan trays.
2.
Grasp the handles and pull the fan tray halfway out of the chassis.
3.
Place one hand under the fan tray to support it and pull the fan tray completely out
4.
of the chassis.
Repeat the procedure to remove the remaining front fan tray.
5.

Figure 57: Removing a Front Fan Tray

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