Grundfos Wastewater Pumps S2.110.200.15.4.60H

Check the oil in the oil chamber

Low oil level may indicate that the upper mechanical shaft seal is defective. Contact an authorised service workshop for further overhaul of the pump and repair, if required

Lack of oil may cause overheating and damage to the mechanical shaft seals

The WIO sensor in the oil chamber trips the alarm if the oil quality or quantity is inadequate, or there is no oil in the oil chamber

Oil auto-ignition temperature must be above 250 °C. Choose the oil used

Enter the oil quantity based on the range

The oil in the oil chamber can be changed while the pump is in either horizontal or vertical position. However; it is recommended to carry out the oil change while the pump is in a horizontal position. This way, it is easier to drain all the used oil out of the chamber

Oil Change in horizontal position: The oil chamber may be under pressure. Loosen the screws carefully and do not remove them until the pressure has been fully relieved

Place the pump in a position that inspection screw is pointing upwards

Use only suitable and manufacturer-approved cables

Cable entries secured to the motor top cover?

Enter the minimum bending radius for the selected power cable

Enter the minimum bending radius for the selected control cable

Sign off on the motor cable maintenance

Pump run at rated speed at least once a day

Pump down to the lowest stop level at least once a day

Sign off on the daily pump maintenance

Safety instructions and requirements

DANGER: Pump can tilt. Death or serious personal injury. During maintenance and service, including transport to service workshop, always support the pump by lifting chains or place it in horizontal position to secure stability

DANGER: Electric shock. Death or serious personal injury. Before starting work on the pump, make sure that the main switch is locked in position 0. Make sure that the power supply cannot be switched on unintentionally

WARNING: Crushing hazard. Death or serious personal injury. Make sure that all rotating parts have stopped moving

WARNING: Chemical hazard. Death or serious personal injury. Flush the pump thoroughly with clean water before carrying out maintenance and service. Rinse the pump parts after dismantling

Check oil level and oil condition

Check Cable entries. Make sure the cable entries are waterproof, the cables are not sharply bent or pinched, and the cable sheaths have no visual defects

Warning: This maintenance check requires trained personnel with PPE!

Never work under a pump when it is hanging from a crane

Enter the impeller clearance at 3 different points

Is the impeller clearance set to 0.7 mm ‡ 0.2 mm?

Submersible pumps, installation types S, C and ST

Did you locate the six fastening screws of the inlet cover and the three set screws?

Did you check the clearance between the impeller and the inlet cover all around the perimeter of the inlet opening?

Did you clean the gap between the impeller and the inlet cover before adjusting the clearance?

Did you loosen the set screws by two full turns for each?