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4.0 Recommended Maintenance
Depending on the application, the filter elements may require to be removed for
cleaning at regular intervals. In any case, the following preventative maintenance program
should be followed:
Every Six Months
1. Visually inspect the following:
a. No leaking around ‘Clampco’ ring clamp
b. No leaking from backwash ball valve
c. No leaking from indexing valve weep hole
d. Illumination of AMBER power lamp
2. Push manual backwash button and observe the following:
a. Illumination of BLUE backwash lamp
b. Opening and closing of backwash valve as indicated by rotation of indicator on valve.
3. Record backwash count
Every Twelve Months
1. Renew all O Rings
2. Visually inspect filter elements
4.1 Removal, Inspection and Cleaning of Filter Elements
To remove the filter elements from the filter, perform the following procedure:
1. Switch off or bypass any pump serving the filter.
2. Isolate filter from system by closing the inlet, discharge, and backwash valves.
Disconnect power supply and drain filter.
3. Remove the 6” filter cover retaining ring and backing ring from control panel housing.
4. Remove “Clampco” ring clamp coupling from around doughnut shaped filter cover.
5. Remove doughnut shaped filter cover. If difficulty is experienced, gently insert a
broad screwdriver under the outer edge of the filter cover to relieve the “O” seal
suction. Insert the screwdriver less than a
¼
” to avoid damaging the large “O” ring
inside the filter housing. You will now see six filter element holders and the common
discharge port.
6. Cover the discharge port to prevent any ingress of debris and remove each element
in turn by gently lifting the white element holder in each pod.
Once the filter elements are removed, perform the following cleaning procedure:
1. If the contaminant is loose, then a simple shaking motion in water will suffice.
2. If light scale has formed, then any proprietary stainless steel cleaner will clean the
elements to a like new condition. Always follow-up by running water down the center
of the filter element to ensure that no debris is lodged between the turns of the coil.
3. If the filter elements are heavily scaled, use a mild industrial acid and follow the
product’s safety precautions. Always follow-up by running water down the center of
the filter element to ensure that no debris is lodged between the turns of the coil.