Maintenance Checklist; Cleaning The Filter Elements And Filter; Checking The Filter Elements; Microbiological Sample Taking - Katadyn MF-7 Instrucciones De Montaje, Servicio Y Mantenimiento

4.3 Maintenance Checklist

Commissioning in accordance with the commissioning procedure.
Treat filter and elements in accordance with the cleaning regulations.
Clean non-return valve each time maintenance is carried out.
During commissioning and re-commissioning, care must be taken to ensure that all air has been
removed from the filter.
4.4 Cleaning the Filter Elements and Filter (see also Appendix 8.4)
Cleaning may only be carried out by authorised personnel.
The water conducting components must be relieved of pressure.
1. Close inlet tap A.
2. Open outlet tap C.
3. Open the air-escape valve.
4. Make sure that the filter starts discharging water.
5. Open filter lid.
6. Close outlet tap C as soon as the filter elements are standing in water by 1/6 only.
7. Slip the cleaning unit over the filter element and brush up and down 6 - 8 times until the
element is clean. Repeat the process for all other elements.
8. Remove cleaning unit and open outlet tap C.
9. Check filter elements (see below).
10. Open hose connection tap D and rinse filter elements and the inside casing with the rinsing
hose. Check by hand to see whether the filter elements have been tightened thoroughly.
11. Close outlet tap C and hose connection tap D. If necessary, add Katofil (filtration aid) and close
the filter lid.
12. Slowly open inlet tap A. If Katofil is used, it is important to open the tap slowly (to enable
precoating). Katofil must first have been dissolved.
13. Leave the air-escape valve open until water escapes.

4.5 Checking the Filter Elements

Using the supplied measuring gauge, check the thickness of the ceramic wall. As soon as the
measuring gauge can be pushed over the ceramic (i.e. the minimum ceramic wall thickness
has been reached), the filter element must be replaced.
Cracked elements are to be replaced immediately.
Once cleaning is completed and the filter elements have been checked in accordance with the
above procedure, operation may be resumed.

4.6 Microbiological sample taking

Sample taking for microbiological analyses may only be carried out by authorised personnel. The
corresponding safety precautions are to be observed.
The samples must only be taken from the sampling tap E (see Appendix 8).
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