m.s. Birka Stockholm renews resilient mounting system under main engines
Wednesday 16 January 2019

Old mounts, 1 of 4
After renewal, 2 of 4
Vibration measurement, 3 of 4
m.s. Birka in Stockholm, 4 of 4

ExaktAlign performed vibration measurements to the 4 x Wärtsilä 6L46B main engines, which indicated that the vibration levels had become too high. During an alignment survey it was concluded that the rubber mounts had aged. It was decided therefore to replace the complete resilient mounting system by new. ExaktAlign was given the order to supply the new OEM mounts, including the installation on board and laser alignment of the engines. In cooperation with the Superintendent, a schedule was made in which all the mounts could be exchanged during full operation of the ship, including the alignment. After the exchange, the vibration levels were measured again and a significant improvement was measured.

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