Vibration measurements have taken the biggest market share in machinery condition monitoring. An on-line monitoring system is a tool that can help mechanical maintenance personnel and also production personnel to discover the slowly developing changes in machinery and process. The early warning gives time to react early enough to these changes so that maintenance tasks can be planned in advance and carried out during planned shutdowns. This helps to minimize the unplanned shutdown time and on the other hand to maximize the production time - to keep up the runnability of the production machinery. Through practical cases found in customer systems, this presentation demonstrates on-line monitoring as a tool for predictive maintenance, applied both for long-term maintenance planning and short-term troubleshooting.

Key Words: Condition Monitoring, Runnability Monitoring, Predictive Maintenance, Reliability, Monitoring