NEC Express5800 Series User Manual page 262

6-4 Maintenance
7.
Wipe the server with a dry cloth.
8.
Wipe off dust from the fan exhaust opening on the rear of the server with a dry cloth.
Cleaning the Keyboard and Mouse
IMPORTANT:
A keyboard and a mouse use USB interface. Therefore it is not necessary to power off the
server when connecting or disconnecting them.
Disconnect the keyboard from the server while the devices in the system (the server and the
peripheral devices) remain turned on. Wipe the keyboard surface with a dry cloth. Then connect the
keyboard to the server.
The mouse operation depends on the degree of smoothness of the internal ball rotation. To keep the
mouse ball clean, use the mouse in a place with little dust. Follow the steps below to clean the
mouse regularly:
1.
Disconnect the mouse from the USB hub of the keyboard while the server remains
powered on.
2.
Turn the mouse upside down, and rotate the
mouse ball cover counterclockwise to remove it.
Take out the ball from the mouse.
3.
Wipe the mouse ball with a dry soft cloth.
If stains remain, use a soft cloth to wipe them off.
Soak the soft cloth in neutral detergent that is
diluted with water or warm water, and squeeze it
firmly,
4.
Wipe three small rollers inside the mouse with
cotton swab.
Use the cotton swab soaked with alcohol if stains
remain.
5.
Put the mouse ball back into the mouse.
If the mouse or rollers are wet in steps 3 and 4, put
it back after fully dried.
6.
Place the mouse ball cover, and rotate it clockwise
until it is locked.
7.
Connect the mouse to the server (the USB hub of
the keyboard).
Mouse
Mouse ball
Mouse cover
Bottom
Rollers