Replacing A T4000 Rear Air Filter; Removing A Rear T4000 Air Filter; Figure 91: Installing The Front Air Filter - Juniper T4000 Hardware Manual

T4000 Router Hardware Guide
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Replacing a T4000 Rear Air Filter

Removing a Rear T4000 Air Filter

220
Unlock the cable management system, and lower it to the fully lowered position.
5.
Rearrange the PIC cables in the cable management system.
6.

Figure 91: Installing the Front Air Filter

Preventing T4000 Electrostatic Discharge Damage on page 296
T4000 Cooling System Description on page 21
Troubleshooting the T4000 Cooling System on page 193
T4000 Clearance Requirements for Airflow and Hardware Maintenance on page 59
Maintaining the T4000 Air Filters on page 180
Removing a Rear T4000 Air Filter on page 220
1.
Installing the T4000 Rear Air Filter on page 222
2.
The rear air filter is located at the left rear edge of the chassis. The rear air filter weighs
less than 1 lb (0.5 kg).
To remove the rear air filter:
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 at the top, center, and bottom of the air filter, using a
2.
Phillips (+) screwdriver, number 2.
Grasp the air filter cover by the captive screws, and pull firmly to remove the cover
3.
and honeycomb assembly from the chassis (see
Press the filter element inward until it clears the hooks at the top and bottom of the
4.
air filter slot, then push it to the left to unseat it.
Move the tabs on the filter element to a horizontal position.
5.
Grasp the tabs on the filter element, and carefully pull it straight out from the chassis
6.
(see Figure 93 on page
Figure 92 on page
222).
221).
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