7-2
PL-7900 Series User Manual
Maintenance and inspection
7-2 Cleaning the Filter
Since excessive dirt and dust in the filter of the PL-7900T/PL-7901T’s cool-
ing fan can potentially affect the performance of the unit, regular inspection
and cleaning of the filter is strongly recommended.
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PL-7900T(4 slot type)
1) Unscrew the cooling fan filter cover’s at-
tachment screw and remove the filter
cover.
2) Remove the filter from the fan cover.
Filter
Filter Cover
Attachment
Screw
2
Moisture Resistant Gasket Replacement
The moisture resistant gasket protects the PL and improves its water resistance.
For instructions on installing the PL’s gasket,
4-2 Installing
the PL
A gasket which has been used for a long period of time may have scratches
or dirt on it, and could have lost much of its water resistance. Be sure to
change the gasket periodically (or when scratches or dirt become visible).
Note:
Summary of Contents for PL-7900 Series
Page 17: ...xvi Preface PL 7900 Series User Manual MEMO This page intentionally left blank...
Page 23: ...1 6 PL 7900 Series User Manual Overview MEMO This page intentionally left blank...
Page 81: ...PL 7900 Series User Manual OS Setup 6 4 MEMO This page intentionally left blank...
Page 99: ...App 10 PL 7900 Series User Manual Appendix MEMO...