From Subtle Signs to Full Breakdown: Teaching Operators to See What Machines Feel
- Kerin Epperly, CLSSMBB
- Oct 15
- 2 min read

In the past four months, I’ve launched a website unlike any other in the reliability space www.masterreliability.com
Built to make problem-solving easy, tangible, and quick. It’s packed with tools, visuals, and cross-industry examples grounded in Reliability-Centered Maintenance (RCM) and my core belief:
Every failure has a unique fingerprint.
Every fingerprint tells a story.
Every story can be read through the operator’s five senses.
Instead of relying solely on complex NDT tests, we train operators to detect early warnings through sight, sound, touch, and temperature.
Long before sophisticated instruments ever raise an alarm.
Signs of Impending Failure
Unusual vibration, heat rise, tonal shifts, oil shimmer, debris, or misalignment patterns; these are not random annoyances. They are machine distress signals.
When FINGERPRINTS are recognized early, they allow teams to intervene at Stage 2 or 3 on the PF curve, before downtime becomes inevitable.

These same sensory signals often trace back to predictable mechanical root causes:
Related Failure Modes:
- Misalignment 
- Shaft Bending or Fatigue 
- Shaft Cracking 
- Bearing Wear or Failure 
- Coupling Wear 
- Seal Degradation or Leakage 
- Excessive Vibration 
- Foundation Bolt Loosening 
- Motor Overload 
- Thermal Growth Distortion 
- Pipe Strain-Induced Leakage 
- Gear Mesh Deviation 
- Rotor-to-Stator Contact 
- Runout in Precision Spindles 
- Web Tracking Errors (presses, paper machines) 
- Optical Path Deviation (benches, telescopes) 
- Tool Deflection (lathes, grinders) 
- Mounting Stress Fractures 
- Alignment Drift 
Why? Because of the Failure Sequence.
The Payoff
When operators are trained to “see, hear, and feel” these signatures, the probability of unplanned downtime drops exponentially. It’s the foundation of my platform: a practical, sensory-based reliability system designed for anyone who wants to protect assets, prevent surprises, and extend machine life through awareness and understanding.
My goal with www.masterreliability.com is to give teams the tools and knowledge to do exactly that: across industries, assets, and technologies.
Because the future of reliability isn’t just digital… it’s sensory.
#ReliabilityEngineering #ConditionMonitoring #RCM #MaintenanceExcellence #PredictiveMaintenance #AssetManagement #MachineHealth #HumanCenteredReliability #IndustrialInnovation #MasterReliability

