The crane beam must have readable plates with markings: permissible load, model, manufacturer https://gaelixmarineservice.com/new/davits-for-boats/nordav-norwegian-swivel-davit-systems/. This is not only a standard requirement, but also a practical guide for the crew. It is also important that a brief instruction on how to use the system is available on board. In an emergency, there will be no time to look for a video on YouTube - everything should be at hand and understandable even to a beginner.
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