Danger! Danger of electrocution!
- Disconnect motor from power supply and ensure it cannot be reconnected unintentionally.
- Check if pump is de-energized.
Gefahr! Anlage unter Druck!
- Vor Arbeiten an Motor- bzw. Pumpenverschraubung die Absperrventile schließen.
Warning! Danger of scalding through hot water!
- Avoid direct contact with hot water.
- DAS PUMPENGEHÄUSE KANN DURCH DAS HEISSE FÖRDERWASSER EBENFALLS EINE HOHE TEMPERATUR AUFWEISEN.
- Every time the motor is opened, replace the O-ring.
For servicing close the isolation valves.
Demount M6-screws completely.
Remove pump motor.
Carefully lift off the rotor.
Remove lime from rotor and rotor can using standard descaler. Eventually exchange rotor. Use smooth cleaning aids (cloth, brush, toothstick). Don‘t use hard, metallic devices.
Replace rotor on bearing pin.
Dispose of used O-ring.
Insert new O-ring into the pump housing and press slightly into place.
Remount pump motor.
Tighten M6-screws
(max. 5 Nm).