Misalignment of a Gearbox Problem description 24' Raymond was showing impacts in the time waveform consistent to a tooth problem Also, in velocity spectrum many sidebands of ring gear speed around gear mesh indicating problems with this ring gear This separator has had gearing problems 3 times in the last 2 years Analysis Time waveform indicating fault Single impacting at once per revolution and then there were other impacts showing multiple tooth problems Time waveform trend views Major step change indicates ?rst tooth problem Trends over 6 (upper) and 7 (lower) month Vibration Signature Increasing Time Waveform energy with once per revolution impacting and many gear mesh sideband frequencies of Ring Gear speed Findings Misalignment of gearing gearbox Found several broken teeth on ring

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