Definition
PM compliance measures the percentage of scheduled preventive maintenance tasks completed within their defined window, out of all preventive tasks due in a period. It specifically tracks preventive work, distinct from schedule compliance, which covers the full maintenance schedule including corrective and other planned work.
Key facts
- Specifically measures preventive maintenance tasks (calendar- or usage-triggered) not the entire maintenance schedule.
- Calculated as PM tasks completed on time divided by PM tasks due, for a defined period.
- Low PM compliance often precedes rising reactive work and emergency work percentage, since missed preventive tasks let deterioration continue unaddressed.
- Distinct from schedule compliance, the broader measure covering all scheduled maintenance work, not only preventive tasks.
How is PM compliance calculated?
PM compliance is calculated by counting how many scheduled preventive maintenance tasks were completed within their defined due window during a period, then dividing by the total number of preventive tasks that were due in that same period.
What influences PM compliance?
PM compliance specifically isolates preventive maintenance tasks. Schedule compliance is the broader measure covering the entire maintenance schedule: preventive, predictive-triggered, and other planned work together. A team can have strong PM compliance while overall schedule compliance suffers due to delays on corrective or other planned jobs, or vice versa.
FAQ
Frequently asked questions
What share of due preventive work is completed on schedule?
PM compliance: the percentage of scheduled preventive maintenance tasks completed within their defined window, out of all preventive tasks due in the period, a measure specific to preventive work, narrower than overall schedule compliance.
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