How to set the impeller clearances on an API 610 VS4 vertical sump pump

April 9, 2018


Set the correct impeller clearance on an API 610 VS4 vertical sump pump before commissioning or operating the pump.

Required tools:

  • Mole grips
  • Spanner – M10
  • Philips screwdriver
  • Allen key – 4mm
  • DTI gauge
  • C-Spanner