Maintenance/Cleaning - Oase Aqua Oxy 400 Gebrauchsanweisung

Additional installation instructions:
To obtain the best possible performance of the Aqua-Oxy pond aerator, keep the
air hoses as short as possible. Only use the hoses (10m) and flow stones
supplied with the device.
Regulating the air quantity
Adjust the air quantity with the regulating valves, if for example when placing
the flow stones at different depths, the deeper positioned flow stone requires
a greater quantity of water than the higher positioned flow stone, occasioned
by the counter-pressure of the water.

7.0 Maintenance/Cleaning

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7.1 M embrane replacement
Even for prescribed use the membranes are subject to wear and must be replaced
from time to time. Always replace the membranes as a set, left and right.
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AquaOxy_St_o_Garantie.p65
GB Operating instructions
Follow the safety instructions (chap. 4.0).
If the performance decreases clean the air intake openings in the floor
of the housing of the membrane pump.
Keep the holes in the lower part of the housing free s o that possibly
accumulating water condensation can drain without obstruction.
Keep the Aqua-Oxy pond aerator free of leaves.
Unplug the power plug from the outlet.
Open the upper part of the housing by loosening the three Philips head
screws on the underside.
When removing the upper part of the housing (Fig. 1) with the rubber seal,
ensure that the connecting cable of the LED display does not pull off.
Then open the metal housing by loosening the four screws.
Remove the lid of the metal housing. (Fig. 2)
Now pull the connecting hose horizontally on the left and right side off
of the pump heads. (Fig. 3) The hoses remain on the connections of the
sheet metal housing.
Remove the pump from the sheet metal housing. Ensure that the LED
power cable does not pull off. (Fig. 4)
Ensure (e.g. by marking) that the two different pump heads are not
mixed up after dismantling and subsequent reassembly.
Now dismantle the left pump head and then the right pump head, by
loosening the four screws. (Fig. 5)
Then remove each pump head.
Loosen the membrane's centre-positioned retaining screw. (Fig. 6)
Remove the washer and the large rubber disk.
Insert the screwdriver in the hole that is now visible and pry out the membrane.
Insert the new membrane. Ensure that the new membrane is inserted
correctly (make sure that it is not deformed). (Fig. 6)
Position the swing brace that is underneath the membrane so that it is
centred under the hole in the membrane as best as possible. This will
simplify the subsequent insertion of the screw.
Replace the large rubber disk and the washer and hand tighten the centre-
positioned retaining screw.
12
GB
11.05.2004, 08:25