Replacing A T320 Fan Tray; Removing A T320 Front Fan Tray - Juniper Core Router T Series Hardware Manual

Replacing a T320 Fan Tray

Removing a T320 Front Fan Tray

Copyright © 2018, Juniper Networks, Inc.
Replacing the T320 Connections to Routing Engine Interface Ports
The T320 router has two front fan trays. The front fan trays install horizontally in the
front of the chassis. Each front fan tray contains six fans. The two front fan trays are
interchangeable, but the rear fan tray is not interchangeable with the front fan trays. The
fan trays are hot-insertable and hot-removable.
Removing a T320 Front Fan Tray on page 199
1.
Installing a T320 Front Fan Tray on page 200
2.
Removing a T320 Rear Fan Tray on page 201
3.
Installing a T320 Rear Fan Tray on page 202
4.
The upper front fan tray is located above the FPC card cage, and the lower front fan tray
is located below the front air filter. Each fan tray weighs about 13.3 lb (6.0 kg).
To remove 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. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to a T320 Router" on page
If you are removing the lower fan tray:
2.
Unwrap any PIC cables from the spools on the cable management system and
a.
remove the cables from the tray. Arrange the cables so that they do not block the
front of the cable management system and tray, and secure them with temporary
fasteners so that they are not supporting their own weight as they hang from the
connector.
CAUTION:
Do not allow fastened loops of cable to dangle, which stresses the
cable at the fastening point.
Simultaneously pull the two releases on the cable management system. Lift it up
b.
and outward to lock it in place to access the lower fan tray.
Loosen the captive screws on the corners of the fan tray faceplate.
3.
Grasp the handles and pull the fan tray halfway out of the chassis.
4.
Chapter 25: Replacing Cooling System Components
Figure 79 on page 200):
Do not let fiber-optic cable hang free from the connector.
330.
199