Replacing Cooling System Components; Replacing A T320 Air Filter; Removing A Front T320 Air Filter - Juniper Core Router T Series Hardware Manual

CHAPTER 25

Replacing Cooling System Components

Replacing a T320 Air Filter

Removing a Front T320 Air Filter

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Replacing a T320 Air Filter on page 193
Replacing a T320 Fan Tray on page 199
Removing a Front T320 Air Filter on page 193
1.
Installing a Front T320 Air Filter on page 194
2.
Removing a Rear T320 Air Filter on page 195
3.
Installing a Rear T320 Air Filter on page 197
4.
The front air filter, located below the FPC card cage in the front of the chassis, and installs
horizontally. The front air filter weighs approximately 1 lb (0.5 kg).The air filters are
hot-insertable and hot-removable.
To remove the front air filter (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.
Unwrap any PIC cables from the spools on the cable management system, and remove
2.
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 let fiber-optic cable hang free from the connector. 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 and
3.
outward to lock it in place to access the air filter.
Loosen the captive screws on the corners of the air filter faceplate.
4.
Figure 73 on page 194):
193