Lowering and hoisting the transducer to remove marine growth
We recommend that you lower and hoist the transducer a few times every week to prevent marine growth inside the installation trunk.
Prerequisites
Neither tools nor instruments are required.
Context
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.
Note
It 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.
Procedure
1 Make sure that you have sufficient water depth below the keel before you lower the transducer.
2 Turn on the SY50 system.
3 Lower the transducer to its bottom position.
Image
To lower the transducer, press Down on the Operating Panel.
While the transducer is moving the indicator lamp flashes, and an audible signal is sounded. When the requested position has been reached, the indicator lamp is lit, and the audible signal stops.
Alternatively, use the Hull Unit function on the top bar to lower the transducer.
4 Hoist the transducer to its upper position.
Image
Press Up to hoist the transducer to its upper position.
5 Repeat this at least five times.
6 Turn off the SY50 system.