Maintenance
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10.4 Filter replacement
Fig. 6: Filter (example)
1
Filter cup
2
Filter element
Replace the filter as described below:
1.
Switch the device off and disconnect the power supply cable.
2.
If included, close the shut-off valves upstream and downstream of the filter
unit.
3.
Depressurise and drain the system.
4.
Unscrew the filter cup (1) by turning it counter-clockwise and remove it by
pulling it downwards.
If necessary, use a spanner for unscrewing the filter cup.
NOTE
Liquid will escape when the filter cup (1) is removed. Keep a collecting vessel
ready and collect any escaping liquid.
5.
Lay bare the inline filter (2).
6.
Remove the clogged filter element and ensure its environmentally-friendly
disposal in accordance with the national and local regulations.
7.
Insert a new filter element.
8.
Clean the dismounted filter cup (1).
9.
Check the sealing ring for signs of damage, clean it, and replace it if necessary.
10.
Screw the filter cup (1) onto the upper part of the filter by turning it clockwise.
If necessary, use a spanner for screwing it on.
11.
When restarting the device, perform a leak test.
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