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Reply to "High Vibration on bearing #2 and #3 on gas Turbine frame 9E (100 MW)"

First, I think you should give us some data (APHT trend, waterfall, SCL, orbit... if any)for review and also the arrangement of machine. I do not know where is bearing#2 or 3 and so on. 

You said that the casing have done bore alignment due to center of bearing housing 2 and 3 is not coincided. How about the alignment result and how about the rotor center position check (done at some hole on casing). how about labyrinth clearance at both side of bearing? how about the phase?

RM
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