9.4.5
Replacing filter mats
NOTICE
Damage due to dust deposits
Dust can enter the interior of the cabinet during filter mat replacement due to the suction of the
running cabinet fans. Dust deposits can damage the device.
● Ensure that no dust enters the cabinet when replacing the filter mats.
1. Remove the screws for the louvered fan grid in the cabinet door.
Figure 9-7
Example diagram: Replacing filter mats
2. Remove the filter mat.
3. If there is a slight amount of dirt, clean the filter mat at a suitable location. Depending on the
degree of pollution, you can also clean the filter mats using a vacuum cleaner. If the filter mat
is damaged, or the frequency of alarms increases, dispose of the dirty filter mat in the correct
fashion. Use a new filter mat.
4. Insert the filter mat in the frame of the fan opening. In order that dirt is not drawn in, insert
a clean mat in the same direction as it was installed before the cleaning.
5. Carefully place the louvered cover over the frame.
6. Retighten the cover screws.
9.4.6
Replacing the filter mats in the roof assembly
NOTICE
Material damage due to dust deposits
Dust can enter the interior of the cabinet during filter mat replacement due to the suction of the
running fans. Dust deposits can damage the device.
● Carefully ensure that no dust enters the cabinet when replacing the filter mats.
Maintenance
9.4 Inspection and maintenance
SINAMICS SM150 6SL3845-2NN41-8AD0
Operating Instructions Rev.201908010908 EXAMPLE
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