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OLi

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Reply with quote  #1 
We got 2 gbx's as identical as they come, input 1890RPM rate slightly above 4 times. Gearmesh 4.4 kHz. One of them have a peak of almost the size of the gearmesh, looking like a sideband, upper side but it seems not to be the case. The other have a small hump in the same place but that one got a huge gearmesh so scale is different. So far this can only be seen on a route collector data, not really in the on-line Bently rack or Adre data from the hi or lo speed shaft accels. One was behaving strange and is now replaced so we will have a new run shortly. 
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