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Make sure the O-ring (18) is inserted into the slot. Clean the rotor and motor housing with clear water and
check abrasion, by holding the shaft tightly and turn the rotor: The rotor should turn smoothly. Assemble the
parts again in reverse order and mount the components correctly.
Check if dirt or foreign residues got into the pump and clean it according to this instruction.
1.7.
Cleaning of the UV-C lamp and replacing the tube
In case of stronger accumulation of alga and calcification, the correct function of the UV C unit should be
checked. UVC tube (2) has a limited period of effectiveness (approx. 4000 to 5000 hours) and should be
replaced at the latest after one season (March to October). Appropriate replacement tubes are available at
the service address specified below.
If the pond filter has been switched off for a longer period of time, ensure that the quartz glass cylinder that
encloses the UVC tube is clean.
If the filter has not been operated for a longer period of time, under some circumstances it may be necessary
to replace the sealing rings (particularly for the UVC emitter).
Cleaning of the UV-C lamp
1. Disconnect the UVC lamp (1-5) from the mains power and safeguard it from being switched on
unintentionally
2. Comply with the safety measures.
3. Allow the water to completely run out of the unit.
4. Dismantle the UVC lamp according to assembly instruction in chapter 5.1 and take the lamp out of the
compartment in the filter housing.
5. Carefully take the lamp socket (1) out of the housing (5) and replace the UVC tube (2) if needed.
Cleaning of the quartz glass cylinder
1. After disassembling the lamp socket (1) and UV-C tube (2) take carefully the Quartz glass (3) out of the
housing. You may use a wide screw driver or a coin. Insert the tool into the recess, which is at the end of the
thread of the protective sleeve and lift it carefully out.
2. Clean the Quartz glass (3) and housing (5) thoroughly with water and a soft cloth.
3. If needed, remove calcifications from the Quartz glass (3) with a suitable solvents. Rinse out thoroughly
before reassembling.
4. If quartz glass tube or O-rings are defective they must always be replaced.
Assemble everything in reverse order.
While inserting the quartz glass into the protective housing (5), make sure the recess and groove engage
exactly. Assure the O-Ring (4) is exactly inserted in the groove of the quartz glass. Where necessary, grease
O-rings (4) with Vaseline. For installation of the lamp socket, the micro switch of the lamp socket (Fig. III, A)
is correctly inserted in the groove of the previously mounted quartz glass (Fig. III B). Otherwise without
contact there is no function (see Fig. I).
Replacing the UVC tube:
1. Disconnect the UVC lamp (1-5) from the mains power for the maintenance.
2. Screw the socket (1) from the housing of the lamp. Remove the UV-C-tube (2) and replace the old tube with a
Fig.III
Fig.II
Fig.I
new one.
Assemble all parts in reverse order and ensure the O-Ring is correctly inserted. Lubricate the O-Ring with
some vaseline.
Caution! Do not touch UVC tube (2) directly with your hand; put on cotton gloves!
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