8
7. Operating Tips
• Dry-running operation causes increased wear and is to be avoided.
Therefore, the pump must be immediately switched off when water fails
to flow.
• The pump is automatically switched off on overheating by the built-in
thermal motor protector. After having cooled down, the motor automati-
cally switches on again. (reasons and remedy, see Trouble Shooting
Guide, point 10)
• In order to unplug, pull the plug shell not the power cable.
• The power cable (1) must not be used for mounting or relocating the
pump for submerging or lifting/securing the pump. Fix a rope to the car-
rying handle (2).
• After having pumped chlorinated swimming pool water or other liquids
leaving residues, the pump should be rinsed with clear water.
• Sand and other abrasive material in the liquid cause increased wear and
reduce the pumps output.
• Avoid running of the pump for more than 10 mins, against closed deliv-
ery side of the pump.
• The Submersible Pumps sucks off down to a residual water height of
approx. 0.2” (5mm). This flat suction height is only reached in case of
manual operation (see point 5, “Operation”), but not in case of auto-
matic operation.
• The Submersible Pump is equipped with an automatic deaerating
device whose function is to remove probable air licks in the pump. If the
water level drops below the vent valve (4), some water flows penetrates
outside through the vent valve. This is not a defect of your pump, but
serves to deaerate the pump.
• If in case of manual operation the pump has sucked off completely and
water flows again after the pump operation, the pump isn’t deaerated
automatically. Then, the pump has to be switched off for a short time
and then switched on again.
8. Maintenance, Care and Storage.
Submersible pumps are virtually maintenance free.
WARNING
Always unplug the pump before performing maintenance.
Repairs on electrical parts should only be done at a Service Center.
In case of contamination inside the pump, the suction base (6) can be
taken off by unscrewing the 3 Phillips recessed head screws (8).
This the turbine space can be cleaned. For safety reasons a damaged
turbine (9) can only be exchanged by the Service Center.
Too protect the pump form frost damage, store the pump in a dry place.
operation
&
maintenance
