10 Maintenance
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EN-US · 30.30.00.00422 · 08 · 09/22
10 Maintenance
10.1 Safety Instructions
Maintenance work may only be carried out by qualified personnel.
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Create atmospheric pressure in the ejector’s compressed air circuit before working on the system!
WARNING
Failure to follow the instructions in these
Operating instructions
may result in in-
juries!
4
Read the Operating instructions carefully and observe the contents.
WARNING
Risk of injury due to incorrect maintenance or troubleshooting
4
Check the proper functioning of the product, especially the safety features, after every
maintenance or troubleshooting operation.
NOTE
Incorrect maintenance work
Damage to the ejector!
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Always switch off the supply voltage before carrying out maintenance work.
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Secure it so that it cannot be switched back on.
4
The ejector must be operated only with a silencer and press-in screen(s).
10.2 Cleaning the Ejector
1. For cleaning, do not use aggressive cleaning agents such as industrial alcohol, white spirit or thin-
ners. Only use cleaning agents with pH 7–12.
2. Remove dirt on the exterior of the device with a soft cloth and soap suds at a maximum tempera-
ture of 60° C. Make sure that the silencer is not soaked in soapy water.
3. Ensure that no moisture can reach the electrical connection or other electrical components.
10.3 Replacing the Silencer Insert
Heavy infiltration of dust, oil, and so on, may contaminate the silencer insert and reduce the suction ca-
pacity. Cleaning the silencer insert is not recommended due to the capillary effect of the porous material.
10.4 Replacing the Press-In Screens
The vacuum and compressed air connections of the ejectors contain press-in screens. Dust, chippings and
other solid materials may be deposited in the screens over time.
4
If you notice that the performance of the ejectors has declined, replace the screens.
