Unpacking the hull unit from its transport box
The hull unit is delivered in a large wooden transport box.
Prerequisites
The shipyard must provide all necessary tools and manpower. The following specific items are required for this task:
•  Carpenter tools
•  A crane (or other lifting device) capable of lifting the entire hull unit
Note
The 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
The hull unit, transducer and transducer cable must be handled with care.
Note
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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A Lifting eye on the gantry
B Support hardware (wooden cradle and support construction)
C Transducer protection (thick foam)
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Procedure
1 Remove the top cover of the wooden transport box.
2 Pull out all the nails marked with Indian ink.
3 Remove the wooden cradle and the other supporting beams.
If you wish to reuse the transport box, make sure to keep all the support hardware.
4 Fasten the lifting tackle to the two lifting eye bolts on either side of the top of the gantry.
5 Lift the hull unit (with the transducer protection still in place!) carefully out of the transport box.
Note
Make sure that you use the correct lifting eye! There are two lifting eyes on each side of the hull unit. One is located on the top of the gantry, and one on the top of the transducer shaft. Make sure that you use the lifting eyes on the gantry!
6 Make sure that you do not damage the delicate parts of the hull unit.
Note
Make sure that you do not damage the transducer or any of the cables. Watch the hull unit carefully during the lift to prevent the delicate parts from being damaged, stuck or hooked on to protruding objects. Do not remove the transducer protection (the thick foam) until just before the hull unit is lowered onto the installation trunk.