In the course of their long service lives, the demands placed on crane systems and crane technology change. New operating procedures, stricter safety requirements as well as high-cost and high-maintenance components present operators with the question of how the value of a system can be maintained and its efficiency increased. Instead of a mere repair or a comprehensive general overhaul, it is often worth considering modernising the system. It is cost-effective because specific replacement of individual components or systems means that many existing elements can continue to be used and the entire installation does not have to be replaced. At the same time, modernisation makes it possible to maintain the productivity of a plant and enhance its safety over the long term with selected adaptations.