This guide walks you through the key metrics for calculating the effective rate of your preventive maintenance tasks and assessing whether your maintenance program is delivering improved reliability, cost savings, and overall equipment performance.
Why Measure PM Effectiveness?
Effective preventive maintenance delivers significant benefits, but only if tasks are executed properly. Tracking the right metrics ensures your investment is delivering real results.
1. PM Compliance Rate (PMCR)
Are you completing PM tasks on schedule?
PMCR measures how effectively your team adheres to the preventive maintenance schedule.
A high PMCR indicates your team is staying on top of planned maintenance activities, which is a strong indicator of an effective PM program.
2. Mean Time Between Failures (MTBF)
How reliable is your equipment?
MTBF reflects equipment reliability by measuring the average time between one failure and the next.
A higher MTBF means equipment is lasting longer without failures, indicating that your preventive maintenance program is effective.
3. Mean Time to Repair (MTTR)
How quickly are failures resolved?
MTTR measures how quickly your maintenance team repairs equipment after a failure occurs.
Lower MTTR values mean faster repairs and shorter downtime, a sign that your maintenance team is highly efficient in responding to issues.
4. PM Cost Efficiency
Is your PM program cost-effective?
This metric compares the costs saved from avoiding breakdowns versus the overall cost of the PM program.
If this ratio is greater than 1, your preventive maintenance program is delivering positive return on investment.
5. Downtime Reduction Rate
How much unplanned downtime has been eliminated?
Measures the reduction in unplanned downtime attributable to preventive maintenance.
A high downtime reduction rate demonstrates that preventive maintenance is minimizing production interruptions.
6. Equipment Availability
What percentage of time is equipment operational?
Availability measures the percentage of time equipment is operational and available for use.
An increase in equipment availability indicates your PM tasks are effectively keeping equipment running.
7. Failure Rate Reduction
Are equipment failures decreasing over time?
Measures the effectiveness of your PM tasks in lowering the frequency of equipment failures.
A high failure rate reduction indicates that your PM efforts are successfully preventing equipment failures.
Ecesis Preventive Maintenance Software
Preventive Maintenance
Work orders, PM scheduling, and asset management
Inspection Software
Mobile inspections, checklists, and compliance tracking
Task Management
Corrective actions, assignments, and automated reminders
Document Management
Equipment manuals, SOPs, and safety procedures
Training Management
Track maintenance team certifications and competency
Mobile App
Access work orders and equipment data from anywhere


