Complex sentence: After the repairs, turbine 2 had increased vibration, ca 0.15 mm for the main bearing at the full load of the turbine; however it did not exceed specifications but was unacceptable for long term use.
Split into simpler sentences: After the repairs, turbine 2 had increased vibration, ca 0.15 mm for the main bearing at the full load of the turbine. However it did not exceed specifications, but the increased vibration was unacceptable for long term use.