The Path to Excellence in Lubrication Management: 40 Critical Questions
- Mustafa Türker Ergün
- 6 days ago
- 4 min read
Problems arising from the failure to properly meet the 4 criteria (Which, How, How Much, How Often) I previously detailed for lubrication management don't immediately manifest in equipment.
Therefore, it may seem like you have time to address the negative consequences of an ineffective lubrication system in your facility.
While this might seem like an advantage at first glance, in the medium to long term, it can lead maintenance personnel to view lubrication as an unimportant activity.
If you want to improve your lubrication method and have more reliable asset management, you can use the 40 questions detailed below as a guide.
And if you say you're doing this work but want to see where you stand, you can transform these 40 questions into an excellent maturity analysis.
40 Critical Questions
Lubricant Selection and Characteristics
Do you record all technical specifications (viscosity grade, base oil, additive chemistry) of lubricants, not just the product names?
Are viscosity grades selected considering the operating temperature range, load, and speed, and not copied from original equipment manufacturer (OEM) data sheets or inherited from previous installations?
When did you last verify that the viscosity grade we are using is still compatible with the actual operating temperatures?
Do the selected lubricants have appropriate additive systems for the load, temperature intensity, water exposure, and have you verified that they are compatible with the system metallurgy and sealing materials?
Do you implement a controlled changeover policy to prevent unintentional chemical incompatibility or viscosity changes?
Storage and Handling
Are lubricants stored in sealed, labeled, and secure containers to protect them from temperature changes that cause oxidation and condensation?
How many times does the oil come into contact with ambient air before entering the machine, and can you reduce these contact times?
Are transfer containers special, sealed, color-coded, and lubricant-specific?
Have you eliminated open funnels, unsealed buckets, and other conditions that could lead to contamination?
Are pumps, filter carts, and transfer equipment cleaned and inspected according to standard?
Contamination Control
Is it compliant with ISO 4406 cleanliness targets, component sensitivity, OEM guidance, and risk level?
Do you verify the cleanliness of incoming oil and filter it where appropriate?
Are ventilation systems correctly sized considering reservoir volume, thermal vents, dynamic level changes, moisture load, and allowable pressure difference, or are they installed simply because they are available?
Do you change breathing apparatus based on oxygen saturation or pressure drop, rather than at random intervals?
Do you differentiate between condensation, direct water ingress, and seal leaks?
Lubrication Application and Management
Are lubrication intervals determined based on bearing dimensions, load, speed, and temperature, rather than general knowledge?
Are lubrication intervals adjusted according to contamination load, vibration intensity, or long waiting periods?
Do you calculate the amount of oil using bearing geometry and accurate filling percentages, rather than relying on rough estimates?
Are ultrasonic devices used to guide lubrication by monitoring friction, using established reference values to prevent overlubrication?
Is there a relationship between lubrication history and bearing temperature, vibration, and failure events?
Oil Change Intervals
Do you consider the operating temperature rule when determining oil change intervals?
Do you perform condition-based or time-based sampling activities?
Do we monitor oxidation, varnish potential, and contamination trends to safely optimize the oil's service life?
How many times did you experience problems at the drain point last year due to preventable mechanisms such as varnish, sludge, water, or particulate load?
Have you measured the cost of early oil changes on all equipment requiring lubrication?
Oil Sampling and Analysis
Have sampling points been established to collect representative fluid samples in the main flow line, below wear sources, above filters, and away from crankcases, drains, and dead spots?
Are samples taken at a constant operating temperature and operating conditions to establish valid reference points?
Are sample bottles clean, leak-proof, and accurately meet the cleanliness levels specified by the laboratory? Is proper labeling and traceability also ensured?
Is the test list aligned with criticality analysis, rather than a general list of "all equipment" that wastes budget?
Do you track results according to trends, interpret trends, and take corrective actions; or do you simply keep records of reports?
PM Practices and Failure Prevention
As a maintenance manager, do you clearly associate each lubrication procedure with the failure mechanism it prevents?
When did you last audit the PM history for poor task design, unnecessary repetitions, or missing failure modes?
Have you structured periodic maintenance to prevent failures caused by intrusive work, unnecessary part degradation, tool contamination, and incompatible grease changes (soap type, base oil, additive chemistry)?
Do technicians adhere to established standards for cleanliness, torque, assembly practices, and contamination prevention?
Are lubrication routes optimized based on frequency, asset criticality, and workload, rather than tradition or convenience?
System Management and Discipline
Clear ownership of lubrication standards, methods, and rules And is there a structure of accountability?
Are changes to lubricants, sampling practices, intervals, or methods guided by engineering review rather than informal procedures?
Do we measure compliance with lubrication standards, not just the completion of periodic maintenance?
Are limits of authority for deviations clearly defined and consistently applied?
When did you last benchmark our lubrication program against an external benchmark alongside your own past performance?
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