Proactive Maintenance Strategies Flashcards

A plant keeps replacing the same pump seal every six weeks. Which response is most consistent with a proactive maintenance strategy?

Answer: Perform root cause analysis and eliminate the cause of seal failure

Proactive maintenance targets and removes the root cause of failure instead of managing its symptoms.

Which activity best represents precision maintenance as a proactive practice?

Answer: Laser shaft alignment to tight tolerances during installation

Precision alignment removes a major cause of bearing and seal damage, so it extends equipment life.

Why is lubricant contamination control considered a proactive maintenance activity?

Answer: It removes particles and moisture that start wear mechanisms

Keeping lubricant clean and dry stops the abrasive and corrosive wear that leads to failure.

On the P-F curve, where do proactive maintenance activities mainly act?

Answer: Before point P, preventing the defect from starting

Proactive work acts before potential failure begins, while predictive work detects defects between P and F.

A reliability leader wants to measure whether proactive work is increasing. Which metric is most useful?

Answer: Percentage of maintenance hours spent on planned and proactive work

A rising share of planned and proactive hours shows a shift away from reactive work.

Which of these is an example of a defect elimination action?

Answer: Redesigning a guard so wash-down water no longer enters a motor

Removing the water intrusion path permanently eliminates a source of motor defects.

What is the main purpose of commissioning and acceptance testing in a proactive maintenance program?

Answer: Verifying that new or repaired assets are free of installation defects before startup

Acceptance testing catches defects such as misalignment or imbalance before they cause early-life failures.