Usually have these types.
- Reactive :These are Commonly used in small organizations that do not have Maintenance Planners. As equipment fails, work orders are generated and crews are assigned.
- Preventive :Organizations that practice preventive maintenance place a high value on asset performance and availability. These organizations commonly have Maintenance Planners that plan the resources and materials needed both long and short term. These organizations will typically have robust preventive maintenance plans to ensure that assets are maintained on a regular basis therefore decreasing the risk of failure.
- Predictive / Reliability Centered Maintenance:Organizations that are driven by heavy production demands or regulatory compliance will invest heavily in Predictive Maintenance Practices. Predictive Maintenance closely observes the behavior and performance of assets based on capacity requirements, engineered capabilities, maintenance strategies and failure rates. Often these organizations will employ or charter a group to create a Reliability Centered Maintenance practice. These groups trend an asset’s performance and capture data such as Mean time between Asset Failures and Mean Time to Repair. This data then help the maintenance organization better strategize their PM programs.
EAM Business Flow
Lets simulate the real time business scenario and align with eAM Business flow.
Within Company work is generally reported by non-maintenance personnel, usually called or referred to as a Work Request. The Work Request is then routed for approval and a Maintenance Planner is alerted to the need of repair or services.
The planner will then conduct a “walk through” to estimate the materials and trades people that are needed to conduct the repair job. Some repairs may require that an asset be shutdown or brought into the shop. The planner will then meet with operations to plan out the time best determined to access the asset with minimal impact on operations/production.
A typical business flow for Maintenance can be best understood as figure below:
Once the planner has identified the resources, materials, equipment and time needed to perform maintenance, the work order is scheduled to a crew (responsible department who then executes the work). Crew Supervisors pull the schedules defined by planners and assign the qualified trades person to the individual work order operations.
Materials are issued, requisitions are generated and time is entered against the work order operation as tasks are progressing. Upon completion of a task the trades person may enter additional information about the work as well as meter and inspection reading conducted through the course of work. The work order is then closed.