During the modernization of cable management systems, existing plants are revised. This procedure is also known as retrofitting. It includes the dismantling and professional disposal of parts or the entire old system as well as the new installation taking into account the latest state of the art. Often, low-wear attachments can be reused. An economic consideration is made in advance with a recommendation as to whether repairing the old system is worthwhile. This includes checking whether the existing dresspack can be reused or whether a new cable package is required.