Over time, any element that is subject to tension and environmental influences can wear out https://gaelixmarineservice.com/new/davits-for-boats/nordav-norwegian-swivel-davit-systems/. The cables, pulleys, and brakes in a crane beam system require regular attention. Sagging, cracks, and traces of corrosion are all reasons for immediate replacement. Even if the rest of the structure is perfect, a weak link can nullify all efforts. A visual inspection once a month and a full check once a season are good practices.
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