How can a mine reduce HEMM downtime?

Record every breakdown with cause and duration, do preventive services before they fall due, and predict failures from equipment telemetry. Track availability and MTBF per machine to see whether it is working.

What is the difference between preventive and predictive maintenance?

Preventive maintenance services a machine on a fixed schedule. Predictive maintenance uses telemetry to find signs of failure and schedules the repair before the breakdown.