BOMs, Measuring Points and Classification for Asset Maintenance (Part 3)

📌 KEY POINTS
✅ A maintenance BOM links a technical object or material to components/spare parts used for maintenance planning and order component selection — it should reflect maintainable structure, not every physical screw.
✅ Measuring points define where condition measurements are recorded (temperature, vibration, pressure); counter-style measuring points record cumulative usage (operating hours, cycles) and can drive performance-based maintenance scheduling.
✅ Classification adds searchable characteristics to equipment or functional locations (capacity, model, pressure class, hazardous-area rating) — improves reporting and replacement analysis.
✅ These three objects answer different questions: BOM = what parts might be needed; measuring points = current/accumulated condition; classification = what kind of asset it is.
⚠️ Using one of these objects as a substitute for another (e.g. free-text notes instead of measuring points) makes trend analysis and reporting impossible.

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▶ WHERE WE ARE
Part 2 covered equipment and installation. Now enriching technical objects for planning and condition monitoring.

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▶ 1. MAINTENANCE BOM

• Components/spare parts for order selection.

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▶ 2. MEASURING POINTS

• Condition readings (temperature, vibration, pressure).

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▶ 3. COUNTERS

• Cumulative usage driving performance-based maintenance.

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▶ 4. CLASSIFICATION

• Searchable characteristics for reporting.

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▶ 5. DON'T SUBSTITUTE

• Each object serves a distinct planning question.

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▶ STEP BY STEP

1. Create a maintenance BOM for a pump with its key spare parts.
2. Create measuring points for vibration and a counter for operating hours.
3. Classify the equipment with governed characteristics (capacity, model).

✅ CHECKPOINT: a planner can pull likely spares, see condition trend and search assets by characteristic.

A reliability team stored vibration readings in free-text notification notes. Trend analysis was impossible. Creating standardized measuring points and characteristics enabled condition monitoring and comparison across similar equipment.

• Treating maintenance BOM as an engineering BOM copy with no maintenance purpose.
• Creating duplicate measuring points for the same signal.
• Using free text instead of governed characteristics.
• Ignoring counter overflow/unit rules.
• Leaving obsolete BOM components active.

• Govern characteristic catalogs.
• Use counters for usage-based maintenance.
• Keep BOMs maintenance-relevant.
• Standardize units.
• Review obsolete components/measurement points.

Differentiate BOM, measuring point/counter and classification, then explain how each supports maintenance planning.