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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.
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
4. Insert the filter mat in the frame of the fan opening. In order that dirt is not drawn in, insert
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.
SINAMICS SM150 6SL3845-2NN41-8AD2
Operating Instructions Rev.201910281310 EXAMPLE
Figure 9-7
Example diagram: Replacing filter mats
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.
a clean mat in the same direction as it was installed before the cleaning.
Maintenance
9.4 Inspection and maintenance
141
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