Before revision: Soft Foot usually gives rise to a 1x Harmonic of the rotation frequency in the spectrum when Radial ( Horizontal or Vertical) vibration measurements are taken.
After revision: Soft Foot usually gives rise to a 1x Harmonic of the rotation frequency in the spectrum when Radial ( HorizoSoft Foot DiagnosisThe Soft Foot Wizard ntal or Vertical) vibration measurements are taken.