Maintenance And Repair - Wilo Rexa MINI3 serie Einbau- Und Betriebsanleitung

en

Maintenance and repair

NOTICE! If the suction port is very contaminated, remove the cover plate for thor-
ough cleaning!
8.2.3.1 Cleaning the pump interior
WARNING
Sharp edges on the impeller and suction port!
Sharp edges can form on the impeller and suction port. There is a danger of cuts
and similar injuries! Wear protective gloves!
In the case of severe dirt and encrustations, remove the cover plate on the suction
port and clean the pump interior.
▶ Pump interior is cleaned and cover plate has been reattached. Complete the
9 Maintenance and repair
WARNING
Hand injuries resulting from a lack of protective equipment!
There is a danger of (serious) hand injuries while carrying out the work. Wear pro-
tective gloves (minimum requirements in accordance with EN 388:2016, category
II: 3131X)!
▪ Only carry out the maintenance tasks described in these installation and operating in-
structions.
▪ Carry out maintenance work in a clean, dry and well-lit location.
▪ Use only original parts obtained from the manufacturer. The use of any non-original
parts releases the manufacturer from any liability.
▪ Collect any leakage of fluid and operating fluid immediately.
▪ Dispose of the operating fluid at certified collection points.
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1. Horizontally position the pump on a firm surface. WARNING! Risk of hands be-
ing crushed. Make sure that the pump cannot slip away!
2. Unscrew the 3 fastening screws on the cover plate.
3. Remove the cover plate.
4. Rinse the pump interior with clean, running water. Remove solids by hand.
5. Check the O-ring on the suction port. If the O-ring is damaged (cracks, porosity,
crushed areas), replace the O-ring.
6. Position the cover plate on the suction port.
7. Fully screw in the 3 fastening screws. NOTICE! Replace worn screws!
cleaning work.
WILO SE 2019-07