All surfaces that are in contact with seawater are exposed to marine growth (biological fouling). Marine growth inside the installation trunk can damage the transducer. When the trunk bearing moves up and down it removes marine growth (biological fouling) from the trunk walls.
NoteIt is particularly important to do this if you operate in waters with a lot of marine growth. You must do this even if your vessel is alongside the quay.
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1 |
Lower the transducer to its bottom position. |
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2 |
Hoist the transducer to its upper position. |
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3 |
Repeat this at least five times. |