Figure 3-52
Installing the air filter on the air intake frame of the USG9560
----End
Follow-up Procedure
l
Gather up and store the tools.
l
Dispose of the replaced air filter according to the compliance and safety standards.
3.7.3 Replacing the Air Filter of the USG9520
This section describes the procedure for replacing the air filter on the USG9520.
Context
To ensure proper heat dissipation and ventilation for the system, and to prevent the
accumulation of dust on the air filter, you need to clean the air filter regularly. It is
recommended that an air filter be cleaned at least once every three months and be replaced
once every year. When an air filter is placed in the dusty environment such as an equipment
room, the air filter should be cleaned more frequently.
NOTE
The method for replacing an air filter of the USG9520 chassis configured with DC power supply is the
same as that of replacing an air filter on a chassis configured with AC power supply.
Configuring a Cleaning Cycle for the Air Filter
You can configure a cleaning cycle for the air filter on the chassis using the
dustproof check-
timer day
days
command in the system view.
When the air filter has already been running for a period of time, the system generates an
alarm to remind you to clean the air filter. You can use the
reset dustproof run-time
command to clear the alarm and re-count the runtime of the air filter. The default cleaning
cycle is 90 days. The value 0 indicates that the air filter monitoring is stopped.
HUAWEI USG9500 Series
Hardware Guide
3 Hardware Maintenance
Issue 03 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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