Maintenace strategies

There are three basic maintenance strategies. Combined they make the foundation of a successful maintenance program. Traditionally Breakdown maintenance is the most common maintenance strategy but competitiveness and demands for profit force companies to commit too preventive maintenance and condition-based maintenance.

Break Down Maintenance

This is the most basic strategy. Run the machine until it breaks down, repair, run and wait for the next breakdown. This is of cause not a very good strategy from an economic point of view. High costs as a result of catastrophic failures leading to long stand stills and production loss.

 

 

Preventive Maintenance

This is a maintenance strategy based on a predetermined periodic basis. At the planed time the machine is taken off-line and repaired. Some parts wear out periodically, lubrication schedules and laws must be followed, which makes preventive maintenance necessary in a maintenance strategy. The downsides with preventive maintenance are production stops on equipment with no faulty parts and cost for unnecessary spare parts. Furthermore there is the risk of.

 

 

Condition-based maintenance

This strategy focus on the real condition of machine utilizing methods like vibration analysis/monitoring, thermography, oil analysis, etc. and from these results make decisions about necessary repairs. Labour, spare part supplies and production stops can be planed in the most economic way. The risk of a part failing between periodic stops is mimimized.