Grundfos Wastewater Pumps SE1.50.65.11.4.50D

Warning: Before starting work on the pump, make sure that the fuses have been removed or the mains switch has been switched off. It must be ensured that the power supply cannot be accidentally switched on.

Warning: Make sure that all protective equipment has been connected correctly.

Warning: Before starting work on the pump, make sure that the mains switch has been locked in position 0. All rotating parts must have stopped moving.

Warning: Maintenance work on explosion-proof pumps must be carried out by Grundfos or a service workshop authorized by Grundfos.

Warning: The cable must only be replaced by Grundfos or a service workshop authorized by Grundfos.

Warning: Before carrying out maintenance and service, it must be ensured that the pump has been thoroughly flushed with clean water.

Warning: Defective bearings may reduce the Ex safety.

Inspect pumps running normal operation every 3000 operating hours or at least once a year.

Rinse the pump parts in water after dismantling.

Warning: When loosening the screws of the oil chamber, note that pressure may have built up in the chamber. Do not remove the screws until the pressure has been fully relieved.

Has the shaft seal been replaced?

Place the pump on a plane surface with one oil screw pointing downwards.

Place a suitable container (approx. 1 litre), for instance made of transparent plastic material, under the oil screw.

Does the oil contain more than 20% water?