dust collectors and fume extractors
SPH - Changing Brushes


  • Open lid of SPH unit and remove filters.
  • Once filters are removed turn unit upside down to reveal the bottom of the unit.
  • Remove the seven outer screws holding the base plate to the unit (the 4 corner screws are the outer screw of each wheel assembly, do not remove the inner screw of the wheel)
  • You will now see the the motor as well as the brushes installed.
  • Using a screwdriver, unscrew the 2 screws holding down each of 2 gold colored brush casings until the brush is freed, do not unscrew completely.
  • Lift gold colored tab and lift/pull out each brush.
  • Replace each brush onto turbine motor, screwing down the phillips screws over tab just sufficiently to hold the brush in place. Do not overtighten.
  • Replace base of unit and install the 7 screws.
  • Flip unit right side up and reinstall filters in the same sequence that they were removed
  • Replace and latch lid .
SERVICE NOTE: Please note that your system is equipped with carbon brushes and they need to be replaced at a maximum of every 500 hours of operation. Periodic Inspection of motor brushes is essential. Brushes should be changed at no less than 1/4" of brush material remaining. Failure to do so may result in damaged motors that will not be covered under warranty.

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