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During turning gear operation, the turbine buckets are not centrifugally loaded as they are during normal machine operation. Without the centrifugal load, the buckets traverse from side to side as the rotor revolves. This motion can cause the wheel dovetails to lose material with extended turning gear operation.
So what would be the maximum for which GT can be put on turning gear?
So what would be the maximum for which GT can be put on turning gear?