Installing An M320 Front Fan Tray; Removing An M320 Rear Fan Tray; Figure 82: Installing A Front Fan Tray - Juniper M320 Hardware Manual

M320 Multiservice Edge Router Hardware Guide

Installing an M320 Front Fan Tray

Figure 82: Installing a Front Fan Tray

Removing an M320 Rear Fan Tray

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To install a front 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.
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
page 276.
The rear fan tray is mounted vertically on the right side of the rear of the chassis. The rear
fan tray contains seven fans. The fan tray weighs about 8.4 lb (3.8 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 handle and pull the fan tray halfway out of the chassis.
3.
Figure 82 on page 210):
"Maintaining M320 PICs and PIC Cables" on
Figure 83 on page 211):
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