How Machine Monitoring Data Helps Maintenance Teams Save Costs

Reactive Maintenance Costs More Than It Seems

The financial case for condition-based monitoring comes from avoiding two kinds of waste: unnecessary service on equipment that doesn’t need it and emergency repairs on equipment that failed without warning. Both cost more than a maintenance visit scheduled around actual need.

When a machine breaks down without warning, the repair itself is often the smallest cost.

• Production stops
• Parts get expedited at a premium
• Technicians drop planned work to handle the emergency
• The cycle continues as preventive maintenance is skipped to put out fires

Reactive, break-fix maintenance treats every failure as a surprise, even though warning signs may have appeared long before the machine stopped.

Preventive Maintenance vs Condition-Based Maintenance

Preventive maintenance improves this by scheduling service before failures happen. But most preventive maintenance strategies rely on fixed calendar intervals, servicing a machine every 30 or 90 days regardless of how much it has run. That mismatch means machines that barely run still get serviced on the same schedule as machines running around the clock. This wastes maintenance labor on equipment that doesn’t need attention yet.

Condition-based maintenance strategies close that gap. Instead of scheduling service by date, PMs are scheduled by the actual condition and use of the equipment. That shift depends on one thing: collecting real-time data from the machine itself.

How Condition-Based Monitoring Works

Condition-based monitoring relies on two kinds of machine data:

• How many hours the equipment runs
• What condition it reports while running

Run-Time and Cycle Tracking

The most direct input is how much a machine actually runs:

• Hours of operation
• Number of cycles completed

This connects preventive maintenance directly to use instead of the calendar. A machine running two full shifts gets serviced sooner than one that sits mostly idle, instead of both following the same fixed 30-day or 90-day schedule.

Real-Time Alarm and Condition History

The second input is what the machine reports while it runs:

• Alarms
• Stoppages
• Operating conditions

Reviewing that history, along with an operator’s notes, helps a maintenance team trace a failure back to its root cause. It can also show whether an issue was developing for hours before it caused a stoppage.

None of this works without somewhere to put the data.

Real-Time Data Needs a Maintenance Management System

Sensor data, run-time logs, and inspection readings are only useful if maintenance teams can act on them. A computerized maintenance management system (CMMS) gives that data somewhere to go:

• Work orders automatically generate when machine data crosses a threshold
• Equipment performance is recorded in a searchable database over time
• Machine history shows if a condition is new or has been building for months

Without a maintenance management system tying condition data to action, teams still must notice a problem, decide what to do, and manually create the request. That gap is where the benefit of real time monitoring gets lost.

Maintenance teams can turn monitoring data into action by connecting the data source directly to the maintenance workflow.

How to Get Started with Machine Data and Maintenance

Maintenance teams don’t need to overhaul their entire maintenance strategy all at once. Many plants start with:

• Run-time tracking
• Connecting preventive maintenance directly to actual machine use
• Expanding from there as the data proves useful

The goal is to start by making maintenance decisions based on actual equipment usage, then add processes over time, thereby, saving the company time, resources, and costs.

About the Author

Tim Gelletly has 25+ years of experience with manufacturing maintenance and machine data. He is Head of Maintenance Solutions at Celsus Software, offering FactoryWiz, a machine monitoring solution, and MaintiMizer, a maintenance tracking solution. He may be reached at tim.gelletly@celsussoftware.com.

Celsus Software is an MMA Basic Associate member and has been an MMA member since May 2026.