3
Periodic Maintenance
Warning:
•
Before servicing the filter make sure it is empty of water
and the inlet valve is closed.
•
Never open the filter under pressure!
to release pressure open the lower or secondary flush
valve
Secondary flush port
•
The secondary flush port should be examined every 30 days or if
the flush cycle does not reduce the head loss (filter does not
flush effectively).
•
Disassemble the female coupling with the flush valve. Picture 10.
•
Rotate the screen disc counterclockwise and pull out. Picture 11.
•
Flush thoroughly under stream of water.
•
Return the disc to its place and rotate clockwise until it stops.
•
Assemble the coupling with the flush valve and close.
Discs manual cleaning
•
The Discs should be cleaned manually at the beginning of the
irrigation season, every 90 days thereafter or if the flush cycle
does not reduce the head loss (filter does not flush effectively).
•
Open the tightening ring counterclockwise
•
Pull it down and put aside.
•
Release the filter cup by shaking it and pulling down.
•
Open the lower thread and remove it without dismantling the
spring. Picture 12.
•
Remove the piston. Picture 13
•
Remove the discs carefully avoiding damage to the seal. Picture
14.
•
Flush discs thoroughly under stream of water. Make sure hard
adhesives are removed.
•
Return all discs to the spine
–
make sure you returned all of
them.
•
Check that the seal is in its position.
•
Return the piston
–
make certain it is in the correct orientation
and push upwards.
•
ATTENTION
- In the correct position the 2 rails will slide into
the 2 slots, all other rails have one slot see picture 15
•
Tighten the cup to the filter body and position the cup
protrusion opposite the socket in the filter body.
•
Return the locking ring to its place and tighten by hand until it
stops.
Picture 10
Picture 11
Picture 12
Picture 13
Picture 14
Picture 14
Picture 15
