Elif Özaksu
Corporate
- Thread Author
- #1
🛠️ Predictive Maintenance and Decision Processes
When maintenance teams encounter equipment health alerts, they must decide whether to inspect an asset, plan a repair, or decommission it. Predictive maintenance allows engineers to evaluate proposed actions based on equipment condition, maintenance history, operational constraints, and safety requirements.
IBM's overview of predictive maintenance explains how teams use equipment condition data while considering operational and financial constraints. This means connecting recommendations with the systems where planners organize maintenance and obtain approvals.
A planner must see the evidence behind a recommendation and the conditions required to execute it. It is important that these checks, including job approval, remain visible along with any unresolved constraints that require someone's decision.
🔗 Connecting Equipment Condition to Maintenance Decisions
Consider a scenario involving a critical production asset. A maintenance team uses an AI-powered condition monitoring system to identify early signs of bearing degradation from vibration and temperature patterns. The team receives an alert about a potential failure before the next scheduled maintenance shutdown.
The responsible engineer must evaluate whether to intervene before this shutdown, plan a repair during the shutdown, or request further monitoring. To compare these options, the engineer reviews the asset's criticality, maintenance history, and established maintenance instructions against engineering safety requirements. The planner checks the availability of spare parts and qualified resources against the production schedule.
Suppose, after reviewing these options, the engineer recommends replacing the bearing during a planned shutdown. Before issuing the work order, the planner must verify that a compatible part and qualified personnel are available and that the planned shutdown falls within the intervention window approved by the engineer. If a part is unavailable or dates conflict, the planner must escalate the constraint for re-evaluation.
Engineers must evaluate the allowable intervention window against the facility's safety requirements. Planners can then compare costs and production commitments within these limits.
✅ Checking the Feasibility of the Proposed Action
When evaluating an AI-generated maintenance recommendation, it is important to distinguish between technical suitability and operational feasibility. The reliability engineer checks whether the proposed intervention addresses the equipment condition and complies with engineering requirements and maintenance instructions. The planner checks whether the organization has the necessary parts and qualified resources to perform the work within the production schedule.
A team may accept a technical recommendation but lack the resources to implement it. By connecting ERP and enterprise asset management records, developers can provide reviewers with access to unresolved constraints and required approvals.
A planner reviewing the "inspect asset" option needs more details before assigning the job: the equipment identifier and task; the reason for the inspection and its required timing. Developers should maintain links to supporting evidence and identify information that reviewers still need to verify.
For a bearing replacement, the planner needs to check compatibility and availability. A colleague might have reserved the recorded stock for another job. Procurement might hold an alternative part that requires engineering approval. The reviewer needs to see these distinctions before accepting inventory control.
Production managers must confirm they can release the equipment during the proposed timeframe. Maintenance planners must verify the necessary personnel. If their schedules conflict, the designated reviewer needs the unresolved constraint and the authority to coordinate a response.
🌉 Closing the Integration Gap
Developers need to determine which system holds the authoritative record for each step. A facility might use a computerized maintenance management system (CMMS), an enterprise asset management (EAM) platform, or an ERP maintenance module to manage work. Procurement personnel and budget holders might use separate systems. The integration team must agree on what records it can create or modify in each application.
In the bearing example, the maintenance planner needs the asset identifier and the proposed intervention, along with evidence supporting its urgency. Procurement personnel need an approved requirement for a compatible part. Developers must define these transfers before connecting the applications.
The integration team must match equipment identifiers between the monitoring platform and the maintenance system. If developers cannot provide a clear match, they should prevent the workflow from updating an asset record and submit the mismatch for review.
Developers should check the record and its status that results from an API request. The field application might create a draft work order that still requires approval or part reservation. Planners need this status before treating the job as ready for execution.
👁️ Keeping Approvals and Exceptions Visible
Before enabling automated actions, the application team should assign reviewers to specific decisions. In this proposed workflow, a reliability engineer reviews technical suitability, and a planner coordinates resources. A budget holder approves spending where required by the facility. Facility managers should adapt these responsibilities to their organization.
An application team can start with software that prepares recommendations and draft work orders while people retain the authority to release. Before extending automation, engineers should evaluate the consequences of error and verify controls for the proposed action. Purchasing a component and changing an equipment operating parameter require separate decisions about permissions.
A reviewer addressing an unapproved part needs the affected asset and proposed task, along with the unresolved inventory control. With a generic "approval required" notification, this person must reconstruct the issue before making a decision.
Developers should preserve the source alert and completed checks, along with the recommendation, human modifications, and work order reference. They can distribute these records to relevant systems, provided a reviewer can follow the links and reconstruct the decision.
📈 Measuring Response Through to Completion
After completing the work, technicians should record the equipment condition they found and the intervention they performed. Engineers can compare these findings with the original recommendation. Planners should record any changes they made due to part unavailability or production constraints.
For initial deployment, it is important to measure the time from identifying a potential failure to approving a maintenance plan and the percentage of recommendations that required manual intervention. It is beneficial to track delays by cause, including unavailable parts, resource shortages, and production constraints.
Engineers should compare the proposed intervention with the post-maintenance technician's findings to assess whether it addressed the observed equipment condition. Over time, the evaluation team can assess changes in unplanned downtime and asset availability, maintenance costs, and overall equipment effectiveness (OEE).
