Juniper Networks J4350 - Manual (Page 191)

Replacing and Troubleshooting Hardware Components
Figure 54: Attaching Air Filter and Filter Cover
g003819
POWER
PO W ER ST AT US
ALARM
HA
RESET
CONFIG
PORT 0
STATUS
Air filter
Filter cover
Cover latches
We recommend changing the filter every 6 months. However, the optimal filter
replacement interval can vary depending on the environment where the router
is located. If temperature alarms appear, inspect the air filter.
To replace the air filter:
1. Remove the filter cover by squeezing the plastic tabs on either side of the
filter cover.
2. Pull the filter cover away from the chassis.
3. Remove the old filter.
4. Place the new filter in the opening.
5. Replace the filter cover by pressing it until it clicks into place.
Troubleshooting Hardware Components
This section provides an overview of the resources you can use to troubleshoot
hardware problems on the Services Router:
Chassis Alarm Conditions on page 171
Contacting the Juniper Networks Technical Assistance Center on page 173
Chassis Alarm Conditions
When the Routing Engine detects an alarm condition, it lights the ALARM LED on
the front panel. When the condition is corrected, the light turns off.
Troubleshooting Hardware Components 171