KSB SE & Co. KGaA Standardised Water Pump ETN 150-125-250

Ensure a suitable container for the used oil is on hand

Place the container underneath the screw plug

Undo the screw plug (2) at the bearing bracket (3) and drain the oil

Re-insert and re-tighten the screw plug (2) after draining

Select the shaft unit and confirm oil quantity per bearing bracket

Inspect the flexible elements of the coupling for wear

Is replacement of any coupling parts necessary?

Check the alignment of the coupling

Inspect the coupling guard for deformation

Check plastic components for deformation

Ensure sufficient distance of guards from rotating parts

Ensure the pump is dismantled for grease changing

Are the operating conditions unfavourable? (e.g. high temperature, humidity, dust)

Remove the outer cover plate of each bearing with a suitable tool

Select the shaft unit and apply the correct grease quantity

Only half-fill the bearing cavities with grease

Check correct seating of axial seal rings mounted on the shaft

Is there only gentle contact of the sealing lip?

Ensure no excessive temperatures caused by mechanical contact

Remove the impeller if clearances need to be checked.

Measure the clearance between the impeller and casing.

Is the clearance within the permitted range for the selected impeller material?

Fit new casing wear ring 502.1 and/or 502.2 if clearance is larger than permitted.