Oase ProMax Pressure Automatic 5500/5, Operating Instructions Manual

Page: 17 / 180

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17
MAINTENANCE AND CLEANING
N O T E
Recommendation on regular cleaning:
•
Clean the unit as required but at least
twice per year.
•
Do not use aggressive cleaning agents
or chemical solutions as they could at-
tack the housing or impair the function
of the unit.
•
Recommended cleaning agent for re-
moving stubborn limescale deposits:
– Pump cleaning agent PumpClean
from OASE.
– Vinegar- and chlorine-free household
cleaning agent.
•
After cleaning, thoroughly rinse all parts
in clean water.
Cleaning the non-return valve
Sand can block the non-return valve of the
pump so that it cannot close properly. The
non-return valve has to be cleaned.
Prerequisite:
•
The pressure hose and adapter have
been dismantled.
ProMax Pressure Automatic 5500/5,
6000/8, Well Automatic 6000/8
How to proceed:

F
1. Remove the screws.
2. Carefully remove the cover.
– The ball of the vent valve will fall out.
Ensure that you do not lose the ball.
3. Pull out the non-return valve.
4. Thoroughly clean the non-return valve
with clean water.
5. Reassemble the parts in the reverse or-
der.
6. Prior to installing, allow the pump to
convey clear water for a few minutes
(e.g. in a basin) to completely remove
any sand residue.
(→
Installation and
connection)
ProMax Pressure Well Automatic
3000/15
How to proceed:

G
1. Use suitable locking ring pliers to re-
move the locking ring.
2. Pull out the non-return valve.
3. Thoroughly clean the non-return valve
with clean water.
4. Reassemble the parts in the reverse or-
der.
5. Prior to installing, allow the pump to
convey clear water for a few minutes
(e.g. in a basin) to completely remove
any sand residue.
(→
Installation and
connection)
WEAR PARTS
The following components are wear parts
and may only be replaced by the OASE
Service.
•
Impeller unit