Pump Preventive Maintenance Checklist Excel Hot File

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5. Acceptance criteria / diagnostic thresholds (examples)

Vibration (overall velocity): Acceptable <4.5 mm/s (ISO 10816 zone dependent) — Monitor 4.5–7.1 mm/s — Action >7.1 mm/s.
Bearing temperature: baseline +10°C acceptable; >+20°C → inspect.
Seal leakage: small weep acceptable; visible streaming → repair.
Flow deviation: ±5% acceptable; >±10% → investigate.
Motor current imbalance: <10% difference between phases acceptable.

Performance Test: Measure the flow rate and head to see if it matches the original pump curve. Here is developed text tailored for an article,

Oil Levels: Check sight glasses; top off or replace oil if cloudy or dark. Vibration (overall velocity): Acceptable <4