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Title 2

Vibration Analysis
Predictive/Preventive Maintenance

The three maintenance practices still have their place within the industry.  Reactive maintenance may be the best way to deal with a piece of equipment that is non-essential, or has a back up.  The cost is less that what it would cost to perform predictive maintenance (typically under 5 HP), and would not benefit from preventive maintenance.

Preventive maintenance is still used to prevent failures where predictive maintenance is not possible.  If you had a motor and fan in a location where it is inaccessible and critical to production, you might wait until end of year shutdowns and replace the belts and bearings on a routine basis.

Predictive maintenance certainly has its place in providing condition monitoring, and can greatly reduce the costs associated with unnecessary parts replacement (with preventive maintenance), and/or catastrophic failures (with reactive maintenance).

With the ongoing advances in data collectors, along with an experienced vibration analyst, the costs associated with performing routine inspections on critical, essential, and backup equipment is becoming more cost effective. 

If the cost to perform vibration analysis on a critical piece of equipment is a few hundred dollars in a year, and the cost savings in production loss is $20,000 per hour, not to mention the costs of the equipment or labor, the return on your investment is enormous. 

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Machinery Condition Monitoring

Acceptance Testing

Predictive/Preventive Maintenance


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