NEC Express5800/53La, User Manual, Page: 182 / 314

7-4 Maintenance
Cleaning the Interior
One of the most important items in a good maintenance program is regular and thorough cleaning of
the interior of the workstation, especially around the mother board.
Dust buildup inside the workstation can lead to several problems. As dust acts as a thermal insulator,
a buildup can prevent proper system cooling. Excessive heat will shorten the life of workstation
components. Also, dust may contain conductive or corrosive materials that can cause short circuits
or corrosion of electrical contacts.
How often you should clean the interior of the workstation depends on the environment in which it
is located. For most office environments, you probably should clean the workstation every 12
months. For more severe environments, clean the interior every 6 months.
Cleaning the interior of the workstation entails powering off the workstation and removing the left
side cover. You will need a small vacuum cleaner (with plastic tipped nozzle and electrostatic
protection), computer grade canned air, and a small brush for cleaning the interior.
Follow the procedure below to clean the interior of the workstation.
WARNING
Unplug all power cords.
Unplug all power cords before performing any maintenance. Voltage is present
inside the workstation and display unit even after the power is turned off. All
voltage is removed only when the power cord is unplugged.
1.
Turn off the workstation and unplug all power cables.
2.
Remove the roof cover. (See Chapter 9.)
3.
Use a small brush to loosen any dust and debris on the mother board.
4.
Use computer grade canned air to blow dust off components on the mother board.
5.
Use a small vacuum cleaner with plastic tip to vacuum out dust and debris from the
interior of the workstation.
6.
Reinstall the roof cover. (See Chapter 9.)
7.
Reconnect all power cables and turn on the workstation.