In industrial asset management, it’s crucial to understand key concepts. This article will cover different types of industrial maintenance and their definitions.
Contents
CONTROL VARIABLE
The control variable is the metric used to measure and parameterize all maintenance activities. Kilometers, hours, days, months, and units produced are all common control variables used for maintenance parameterization.
ASSETS
Assets are equipment, machines, or devices that produce tangible or intangible goods or services in an organization. Examples of assets include vehicles, paper machines, printing machines, centrifugal pumps, fans, alternators, transformers, turbines, etc.
PREVENTIVE MAINTENANCE CONCEPT
Preventive maintenance involves performing standardized procedures on assets at a set frequency and with allocated resources, according to the manufacturers’ recommendations.
These standard activities include tasks, spare parts replacement, labor type, and total execution time. This allows for budgeting and scheduling of resources and assets without affecting asset availability since they’re done during scheduled stops.
Monitoring and accurately measuring the control variable is essential since delays or advancements can lead to extra costs.
CORRECTIVE MAINTENANCE CONCEPT
Corrective maintenance refers to unscheduled stops not included in the maintenance plan. It generates operation trauma and extra costs, negatively affecting asset reliability and availability.
Companies with a high occurrence of corrective maintenance are unproductive and costly, indicating an ineffective preventive maintenance plan.
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However, information obtained from corrective maintenance (time, frequency and spare parts data), can be used to improve the preventive maintenance plan.
PREDICTIVE MAINTENANCE CONCEPT
Predictive maintenance aims to detect incipient failures and defects in assets to prevent failures during operation, avoiding emergency shutdowns and negative financial impacts.
This maintenance generates savings opportunities and allows for tracking of critical assets without the need for complete maintenance.
This maintenance requires specialized equipment, procedures, and personnel (oil analysis, vibration analysis, and thermography), which require investment and constant monitoring to make accurate decisions.
