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 capable of lifting the entire hull unit Minimum lifting capacity: 1000 kg
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The following specific items are required for this task. Items that are not included with the CS90 delivery must be obtained locally.
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12 x Pin bolts/Mounting bolts M16x65 |
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Rubber gasket 540-035874 (This item is included in the delivery.) |
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 hoist/lower motor pointing aft. If this orientation makes it difficult to access the Motor Control Unit, 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 protective coating made of a special plastic type. The red protective coating is an 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, because it must be watertight after the hull unit has been
installed on top of the installation trunk. |
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The Motor Control Unit must never be physically dismounted from the hull unit gantry. |
A dedicated gasket is provided with the CS90 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.