5.3.7 Installing and removing a dust filter
Make sure to install a dust filter to equipment. If you do not, dusts enter into the
equipment and the short circuit fire may occur as a result.
Before you clean or replace the dust filter or the case fan of this equipment, make
sure you shut down the OS, disconnect the plug of the power cord from the
outlet, and wait for at least one minute. Otherwise, the injury of hands and fingers
(1) Before installing or removing a dust filter
• Before you start the work, make sure you shut down the OS, unplug the power cord
from the outlet, and wait for at least one minute.
• Allocate sufficient clearance for maintenance work. Carry out the work on a flat
surface. (See "1.2.2 Installation".)
(2) Removing a dust filter
Remove two set screw on filter cover.
 Remove the filter cover as shown below.
 Remove the dust filter from the equipment.
(3) Installing a dust filter
Follow the procedure described in "(2) Removing a dust filter" in reverse to install a dust
Figure 5-8 Replace a dust filter
5. CHECKUP AND MAINTENANCE