During docking, the bearings of this container vessel’s propulsion line ran at severely elevated temperatures.
A laser survey of the line revealed the cause: the slope at the aft stern tube bearing had already been set incorrectly when the ship was built.
The particular challenge was that none of this work had been scheduled for the docking. The vessel had no time for extensive corrections involving the delivery of new bushes, so we had to work with what was on board.
Together with the manufacturers of the gearbox and coupling, and using the newbuild documentation for the propulsion line, we established a line that came close to the technically correct alignment, including the slope at the aft stern tube.
