The traditional approach to maintenance has been to create preventive maintenance (PM) procedures that list specific steps to be performed by a qualified person at some interval (usually calendar-based, such as quarterly). Yet research shows that many of these PM tasks lead to failures that would not otherwise have happened. The usual cause is human error, something that can be reduced through training but can’t be eliminated. Mistakes happen.
Maintain Less for More Uptime, Part 1
Structure your maintenance around the idea of risk.