Qualstar RLS-4124, Техническое и сервисное руководство

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501510 Rev. S
Field – Replaceable Units (FRUs) 7-71
7.23.1 Air Filter Inspection
The RLS and the Tape Drives are cooled by outside air that is drawn into the RLS en-
closure through an Air Filter. This filter keeps dust and dirt from entering the enclo-
sure, as its presence could degrade the reliability of the Tape Drives and media. If the
filter becomes clogged with dust and dirt, the amount of airflow will be diminished.
Diminished airflow could cause the Tape Drives to run hotter, again degrading their
reliability. Therefore, it is important to periodically check the Air Filter and replace it
when it becomes dirty.
The time between filter changes is very dependent upon the local environment. In-
spect the filter frequently when the RLS is first installed. Then, when the effects of
the local environment become known, adjust the inspection schedule accordingly.
• • • • • • • • • • • • • • • • • • •
Check the air
filter.
ENTER when done
Figure 7-46 Air Filter Alert
The RLS automatically keeps track of its power-on time. The
Filter Days
value in
the
Configuration\Advanced\Changer
menu determines how often the user
will be reminded to check the Air Filter. New units are set to 120 days. An alert will
be displayed when the operating time exceeds the Filter Days value provided the
menu system is not active. When the
Check the Air Filter
alert displays
(Figure 7-46 above), follow the steps below:
NOTE
New Air Filters are black. A color change indicates the presence of some dirt, which is
acceptable. However, if dirt is clinging to the outside filter surface, it is time to replace
the filter.
1. Visually inspect the Air Filter element at the bottom of the Front Panel/Door
(Figure 7-45).
2. When the Air Filter alert appears, if the filter does not need replacing, press the EX-
IT key. This will dismiss the alert, but will not reset the Filter Days timer.
3. Next, increase the
Filter Days
value in the
Configura-
tion\Advanced\Changer
menu. If it is estimated that the filter could go an
additional 90 days, increase the
Filter Days
value accordingly.
Example: Change the value from
120
to
210
days.
Since pressing the EXIT key to dismiss the Air Filter alert message does not re-