Context
The hull unit is used to lower the transducer down below the ship’s hull when the SU90 system shall be used. When the SU90 system is turned off, the transducer is hoisted for protection.
CautionIf the transducer hits larger objects or bottom, the transducer shaft may be bent, or - in worst case - it can be broken off.
A broken transducer shaft will cause water leakage through the top of the shaft. If you suspect that the transducer shaft
is seriously damaged with holes, do not retract the transducer to its upper position.
To prevent serious damage to the vessel or the vessel stability, you must have a water pump and a warning system in the sonar
room.
Further requirements
The choices you make are vital for all operation. You must only make these choices once. Accidental changes to the hull unit settings may cause damage to your SU90 system.