Proface APL3000B - Node Box PC - Manual (Page 142)

Chapter 7 Maintenance
7-3
7.2 Cleaning the Fan Filter
In PS-3650A, the fan is used for cooling the CPU and the memory. Since excessive dirt and dust in the filter of
the fan can potentially affect the performance of the unit, regular cleaning of the filter is strongly recom-
mended.
(1) Turn OFF the power switch of the PS-A and remove the power cable. Place the PS-A on a flat, level sur-
face facing the display face downwards.
(2) Unscrew the screws (2) (See the figure below) and remove the fan unit.
(3) Turn the fan unit upside down. Unscrew the screw (1) and lift the fan. Remove the filter between the fan
cover and the fan.