Prerequisites
The shipyard must provide all necessary tools and manpower. The following specific items are required for this task:
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A crane (or other lifting device) capable of lifting the entire hull unit |
The following specific items are required for this task:
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24 x Pin bolts/Mounting bolts M24 x 75 |
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Rubber gasket 540-078749 (This item is included in the delivery.) |
Items that are not included with the SU90 delivery must be obtained locally.
A dedicated gasket is provided with the delivery. This gasket ensures a watertight connection between the installation trunk and the bottom of the transducer shaft sleeve. During the installation process, make sure that the gasket is kept safe from damage, and that the top of the installation
trunk is kept clean, smooth and without physical damage such as scratches or dents.
NoteThe hull unit is heavy. Appropriate lifting equipment (lifting tackle, portable crane or ship’s crane) is required. Always use appropriate lifting equipment to minimize risk of personnel injury or equipment damages. Only certified equipment must be used.
Context
As a general recommendation, the hull unit shall be oriented with the hoisting motor pointing aft. If this orientation makes it difficult to access electrical connections, the hull unit may be rotated during its installation
to the most suitable direction.
The hull unit, transducer and transducer cable must be handled with care.
Note
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The transducer is protected with a thick layer of foam to prevent damage during transport and hull unit installation. This protection must remain attached while the hull unit is being manoeuvred into the sonar room. |
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The transducer is covered with a thick red or black protective coating made of a special plastic type. The protective coating is a vital part of the transducer. It is very important that neither this coating nor the internal parts of the transducer are damaged during the handling, installation or cleaning. Any holes and/or scratches in the transducer surface will allow water to penetrate the transducer. If a leak occurs, the transducer must be replaced. |
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The top mating surface of the installation trunk must be protected with a blind flange or wooden cover at all times until
the hull unit is installed. It is very important that this surface is clean and undamaged. It must be watertight after the hull unit has been installed. |
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The Motor Control Unit must never be physically dismounted from the hull unit gantry. |