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I tried to attach a page which is basically moment weight data of turbine blades row 3 of 50 MW gas turbine. On that page no where it is written that this is sequence chart.
OEM service team was here for overhauling and they installed the blades on the basis of same page and thought this is sequence chart. Nothing written on page like slot number/position number etc. Also on that page top right corner, 1/2 is written which also meant, document is incomplete.
Instead of asking from us or being OEM service provider, they have to arrange sequence chart from OEM engineering. They installed the blades and box up the turbine. Result was huge unbalance and after multiple try they were unable to field balance. So ultimately machine was reopened and correct sequenced.
I need to take opinion from the experts on this forum.
Are not they (Overhaul service Provider which is also OEM) fully responsible of the mistake? As attached page was only moment weight chart not the sequence chart which is clearly mentioned on top of the page. Field service Engineers are trained enough for all this.
OEM service team was here for overhauling and they installed the blades on the basis of same page and thought this is sequence chart. Nothing written on page like slot number/position number etc. Also on that page top right corner, 1/2 is written which also meant, document is incomplete.
Instead of asking from us or being OEM service provider, they have to arrange sequence chart from OEM engineering. They installed the blades and box up the turbine. Result was huge unbalance and after multiple try they were unable to field balance. So ultimately machine was reopened and correct sequenced.
I need to take opinion from the experts on this forum.
Are not they (Overhaul service Provider which is also OEM) fully responsible of the mistake? As attached page was only moment weight chart not the sequence chart which is clearly mentioned on top of the page. Field service Engineers are trained enough for all this.