Juniper Networks 5000 SERIES - Manuel (Page 45)

Replacing an AC Power Supply
NetScreen-5000 Series 37
R
EPLACING AN
AC P
OWER
S
UPPLY
To replace an AC power supply:
1. Turn off the power supply.
2. Lift the AC power cord retainer clip.
3. Unplug the cord from the power supply.
4. Turn the thumbscrew counterclockwise to release the power supply.
5. Lift and grip the lever, then gently pull the power supply straight out.
6. Insert the new power supply into the bay.
7. Secure the power supply in place by tightening the thumbscrew clockwise.
8. Lift the retainer clip, then plug the power cord into the power supply.
9. Press the retainer clip over the cord, securing it in place.
R
EPLACING THE
F
AN
T
RAY
The NetScreen-5000 Series fan modules differ according to the device model:
• The NetScreen-5200 fan module has three fans.
• The NetScreen-5400 fan module has two fans.
When a fan or fan module fails, the Fan LED glows red, and the system generates an
event alarm and a SNMP trap. Although a NetScreen-5000 Series can operate with a fan
out of service, it is advisable to replace the fan module as soon as possible.
When you remove the fan module, you must reinstall it (or replace it) within two minutes,
or system failure may occur.
To replace the fan module on a NetScreen-5200:
1. Remove the fan module by turning the fan lock knob in the unlock position.
2. Rotate the ejector/injector lever out to disengage the fan module from the fan
bay.
3. Grip the fan module lever and gently slide the fan module straight out.
4. Insert the new fan module in the fan bay, then push it straight in.
Warning: If the device becomes too hot, the system shuts down automatically.
Note: During the one-year warranty period, you can obtain a replacement fan module by
contacting NetScreen Technical support. After the warranty period, contact the NetScreen
Sales department to renew your support contract.
Warning: Do not remove the fan module while the fans are still spinning.