Actions required only for specific pump types are so noted. The symbol () used in the table below indicates that the action indicated may not be applicable to a specific pump of a particular type.
Clean packing box
Check and flush seal water and drain piping
Perform a comparative field test (flow, pressures, and power) with calibrated instruments. Restore internal running clearances if results are unsatisfactory (install new wear rings).
Perform a comparative vibration test.
Remove packing and inspect sleeve(s). Replace if worn. (packed pumps)
Realign coupled pumps (maintain records)
Remove pump handhole covers and inspect impeller for corrosion and excessive wear (sewage pumps)
Remove handhole covers to inspect the wear ring clearances. When the wear ring clearances have doubled, adjust the ring clearances to original specifications if so supplied or install new wear rings (sewage pumps).
Examine running clearance between propeller and propeller housing. When the running clearance has doubled, repair or replace the housing, housing liner, or propeller as appropriate. (model AFV axial flow pumps)
Inspect the impeller running clearance. Inspect the impeller housing for excessive wear. If the wear is not excessive, perform impeller adjustment. If the wear is excessive, repair or replace the impeller housing. (open impeller mixed flow pumps, such as models SAF, SAFV, SAFH, or TMF)
Source: MaintainX (Community Member)