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Cleaning
5.12
5.13
5.14
Fig. 20 Components of the prefilter
Pos. Description
5.1
Cylinder
5.11 Cyclone system
5.12 Top part
17. Remove top part (5.12) from cyclone system (5.11).
18. Remove screen (5.13) from bottom part (5.14).
19. Check cylinder (5.1) for signs of wear or damage. Clean or
replace it, if necessary.
20. Clean the prefilter parts as follows:
– Use 0.05 % sodium hypochlorite solution as cleaning agent
in the following steps. In case of strong inorganic fouling,
HCl (ph value 2) or citric acid can be used alternatively.
– Use the fingers and the nylon brush or a tooth brush and the
selected cleaning agent to clean all gaskets, O-rings and
plastic parts.
Warning
Danger of personal injury from high-pressure jet!
The high-pressure jet of the high-pressure cleaner
can pierce skin, damage eyes and burst ear drums.
Do not point the high-pressure jet at people or
animals!
Wear protective gloves and goggles!
– Clean the entire screen surface with the high-pressure
cleaner, first from the inside to the outside, then from the
outside to the inside.
– Clean the inside and the outside of bottom housing (5.8) and
top housing (5.10) with the selected cleaning agent and with
the high-pressure cleaner.
– Clean the elbow fitting (5.2) with the selected cleaning agent
and the nylon brush. If necessary, soak it in the solution for
some time to loosen the fouling. Make sure, that the small
strainer integrated in the elbow fitting is undamaged, free
and clean. Replace elbow fitting (5.2), if necessary.
5.1
5.11
Pos. Description
5.13 Screen
5.14 Bottom part
21. When all parts are cleaned, dip the housing parts (5.8), (5.10)
and all parts of (5.11) into a bucket filled with the selected
cleaning agent.
– All parts must be immersed completely in the sodium
hypochlorite solution.
– Let the parts soak for about 15 minutes.
22. Take the parts out of the bucket and rinse them thoroughly
with clean water using the high-pressure cleaner.
23. Clean the cylinder rod. Make sure, that it moves freely.
24. Reassemble the prefilter in reversed order.
– Make sure, that all gaskets and O-rings are placed correctly.
25. Reinstall the prefilter in the system in reversed order.
– Make sure, that cyclone system (5.11) is fully inserted into
bottom housing (5.8), as shown in the figure below.
Fig. 21 Inserting the cyclone system
26. Remove the water-tight foil without getting any water on
electrical components.
27. If the alarm of the maintained component is active, press the
[Reset] button on the HMI to restart the system. Otherwise
press the [Start] button to restart the system.
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