Key Performance Indicators for Effective Maintenance

Optimizing Maintenance Performance: Key Indicators

Core Maintenance Cost & Asset Value Considerations

• Value of assets maintained by employee maintenance
• Total contractor maintenance costs

Key Areas and Divisions of Maintenance Indicators

• Preventive Maintenance
• Work Order Systems
• Technical and Interpersonal Training
• Operational Involvement
• Predictive Maintenance
• Reliability-Centered Maintenance
• Total Productive Maintenance (TPM): Overall Equipment Effectiveness (OEE)
• Performance Indicators for Effectiveness and Efficiency
• Tactical Performance Indicators
• Functional Performance Indicators

Additional Engineering Maintenance Indicators

The Pan-American Committee of Engineering Maintenance suggests further critical indicators:

• Mean Time to Failure (MTTF)

  Also known as uptime, this is the average time equipment can operate without interruption within a given period. It is directly associated with reliability.

• Mean Time to Repair (MTTR)

  Measures the effectiveness in restoring a unit to operating condition once it is out of service due to a fault. It is associated with maintainability.

• Availability

  Globally estimates the percentage of total time an asset can be expected to be available to perform its intended function.

• Use (Service Factor)

  Refers to the effective operating time of an asset over a specified period.

• Reliability

  The probability that equipment will perform a specific mission under prescribed conditions of use within a given period. The study of reliability involves analyzing equipment or component failures.

• Mean Time Between Failure (MTBF)

  Indicates the expected duration between a system's start-up and the occurrence of a failure; essentially, the average time until a failure event.

Developing Effective Performance Indicators: Wireman (1998) Principles

These indicators are applicable across various sectors, including manufacturing and service industries. According to Wireman (1998), key considerations for developing effective performance indicators within a company include:

1. Ensure strategic objectives are clear to focus efforts and consider the organization as a whole.
2. Link essential business processes to the strategic objectives.
3. Focus on critical success factors for each process, recognizing inherent variables.
4. Track performance trends to highlight progress and potential problems.
5. Identify potential solutions to problems.