The Evolution of Maintenance Strategies
In the world of industry and facility management, a single minute of unplanned downtime can cost thousands of dollars. Maintenance strategies have evolved over time to address this challenge:
- Reactive Maintenance (Run-to-Failure): Waiting for the machine to break, then fixing it. (Most expensive and riskiest).
- Preventive Maintenance: Replacing parts based on fixed time schedules whether they are worn out or not.
- Predictive Maintenance: The new generation—monitoring machine condition in real-time to predict when failure will occur.
The Concept of Predictive Maintenance and Condition Analysis
Predictive maintenance is based on the principle of "intervene only when absolutely necessary, but right before actual failure occurs." This is achieved by installing or utilizing Condition Monitoring technologies, which include:
1. Vibration Analysis
Every rotating machine has a specific vibration pattern or "signature." A change in this signature indicates the beginning of a problem such as shaft misalignment, bearing wear, or loose bolts, often weeks before actual failure.
2. Thermography
Using infrared cameras, hotspots can be detected in electrical panels, indicating loose connections or overloaded wires, as well as friction in mechanical parts.
3. Ultrasonic Testing
High-frequency sounds undetectable by the human ear indicate corona discharge in high-tension cables and compressed air leaks from pipes.
The Role of BMS in Maintenance Sustainability
In commercial buildings, Building Management Systems (BMS) gather performance data for thousands of components like fans, chillers, and generators. The system automatically schedules Work Orders and sends notifications to support teams to replace air filters based on actual pressure differentials, rather than just the passage of time.
Professional Asset Management with Tawazun
At Tawazun Control, we do not just offer traditional maintenance contracts; we provide comprehensive "Engineering Asset Management." We study your equipment, create a historical logbook, and implement precise maintenance programs that extend the machine's lifespan by years and reduce downtime by over 60%.
