Maintenance avoiding failure

Either preventive measures are applied to ensure the maintenance interval, or alternatively, maintenance is based on the actual condition of machines which requires measurement of wear or precise diagnosis systems to come as close as possible to the point of potential damages.

The first concept can be planned very well, however a loss of further lifetime is to be accepted. The preventive measure means that the point where the first damages occur is not known exactly or fixed maintenance intervals oblige undertaking maintenance before it is technically necessary because the machine part would not last for a second period. Concept II b depends on inspection and mature diagnosis methods to enable making the right decision and come as close as possible to the damaged line.