Governor Pump GMF FFT

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This is an FFT of Gear Mesh Frequencies on a governor pump, multiples of GMF up to 3x GMF indicated possible misalignment in addition the presence of multiple sidebands around GMF also indicated possible problem, with lower sideband amplitude higher than upper sideband amplitude indicating possible looseness as well, gears were machined and replaced prior to pump failure

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7/12/125:49 AM

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