PdM compliance is the percentage of predictive and condition-based tasks completed on schedule during a period.
Your calendar PM compliance is 88%. What about the vibration routes, thermography surveys, and oil sampling? PdM compliance almost always trails calendar PM compliance, and tracking it separately is the only way to see the gap. Enter your PdM task counts to find out where you stand.
PdM compliance measures how much of your predictive and condition-based maintenance work gets done on schedule. This includes vibration analysis routes, infrared thermography surveys, oil sampling and analysis, ultrasonic leak detection, motor current analysis, and any other task triggered by equipment condition or driven by meters rather than calendar dates. It is calculated the same way as PM compliance but tracked separately because PdM tasks have fundamentally different execution constraints.
Calendar PMs are routine tasks on a fixed schedule that any qualified technician can perform. PdM tasks require specialized equipment (vibration collectors, thermal cameras, oil sampling kits) and trained analysts who can both collect the data and interpret the results. This means PdM tasks are more likely to be deferred when the specialist is unavailable, the equipment is in use at a different load than needed, or the route conflicts with production schedules. When you blend PdM into the overall PM compliance number, the calendar tasks mask the predictive gap.
Because PdM tasks need specialized labor, portable monitoring equipment, and often specific operating conditions on the asset being monitored. A vibration route requires the equipment to be running at normal load. An infrared survey needs thermal contrast. Oil sampling requires operating temperature. These constraints make PdM tasks harder to schedule and easier to defer than a standard lubrication PM. If you are not tracking PdM separately, the calendar PM number is hiding this gap, and the equipment failures your PdM program was supposed to catch are happening without anyone connecting the dots.
This calculator separates PdM compliance from calendar PM compliance. The Maximo KPI Guide to PM Compliance covers the full implementation: separating PM and PdM work types in Maximo queries, setting appropriate compliance windows for condition-based tasks, and building the feedback loop between PdM findings and PM program adjustments.