Hull unit familiarization
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.
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The upper parts of the hull unit include the mechanical gantry, the hoist motor, the hoisting spindle and the Motor Control Unit. The transducer shaft is supported by the gantry, and penetrates the transducer shaft sleeve and the mounting flange. The complete assembly is mounted on the top of the installation trunk. The transducer is bolted to the bottom of the transducer shaft. The transducer cables are placed inside the transducer shaft.
A Hand crank for manual hoisting and lowering
B Transducer cable with plug
C Hoisting motor
D Motor Control Unit
E Transducer shaft
F Transducer shaft sleeve
G Mounting flange
H Installation trunk
I Transducer