20
Operation and maintenance, Discfilter HSF2600 - 2,3 series with PFLC
6. Select “Start” in the “Pump” window, see Figure 6.12.
7. Close the main valve (A), see Figure 6.9.
8. Adjust the backwash water flow using the by-
pass valve so that there is a small but constant
flow through the nozzles. This makes it easy to
identify which nozzles need to be cleaned.
9. Press the back arrow
10. Select “Cover & Spray”, see Figure 6.12.
11. Extend the wash ramp as described in sec-
tion 6.2, item 2.
The operating time in this mode must be minimised in order to not risk the pump over-
heating.
12. Fully or partially clogged nozzles must be cleaned.
13. Remove the nozzle nut by turning it a ¼ turn anticlockwise. Do not lose the rubber seal
14. Clean the nozzle using compressed air or a plastic brush. Never use a steel brush or metal pins
as these may damage the nozzle.
15. Fit the nozzle in reverse order. Check that the nut has reached the stop position once it has
been tightened a ¼ turn clockwise.
16. Stop drum rotation, (the pump stops automatically).
17. Open the backwash water main valve and close the bypass valve.
18. Reset the backwash pipe to operating mode.
Figure 6.10 Service Cover & Spray bar menu.
Figure 6.11 Service menu.
Figure 6.12 Service Backwash Pump & Drum window.
