Podcast
Questions and Answers
What percentage of a typical grease is oil?
What percentage of a typical grease is oil?
What is the most common type of synthetic oil?
What is the most common type of synthetic oil?
What is the goal of predictive maintenance?
What is the goal of predictive maintenance?
What are the Five Rights of lubrication?
What are the Five Rights of lubrication?
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Why is preventive maintenance preferred?
Why is preventive maintenance preferred?
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What is friction?
What is friction?
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Which of the following is typically the cleanest?
Which of the following is typically the cleanest?
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What does the 'W' stand for in 15W-40 motor oil?
What does the 'W' stand for in 15W-40 motor oil?
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What information should be placed on all lubricant containers received in the plant?
What information should be placed on all lubricant containers received in the plant?
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What happens to the viscosity of an oil as the oil oxidizes?
What happens to the viscosity of an oil as the oil oxidizes?
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What is the best test for water determination in lubricants?
What is the best test for water determination in lubricants?
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At what temperature would an SAE 40 and a 5W-40 have the same viscosity?
At what temperature would an SAE 40 and a 5W-40 have the same viscosity?
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What is the temperature and units of measure for the ISO VG system?
What is the temperature and units of measure for the ISO VG system?
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What should be done with a leaking drum of lubricant?
What should be done with a leaking drum of lubricant?
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What are the three phases of water in oil?
What are the three phases of water in oil?
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What type of lubricant is specified in an AGMA 7?
What type of lubricant is specified in an AGMA 7?
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Study Notes
Lubrication Fundamentals
- A typical grease contains 85% oil.
- The most common type of synthetic oil is Polyalphaolefin (PAO).
Maintenance Strategies
- Predictive maintenance is a strategy deployed to make equipment last twice as long.
- Preventive maintenance ensures root causes are determined and rectified.
The Five Rights of Lubrication
- The Five Rights of Lubrication are:
- Right product
- Right location
- Right amount
- Right time
- Right condition
Friction and Lubrication
- Friction is a resistance to motion between two surfaces in contact.
Grease Thickeners
- Clay is the most incompatible grease thickener.
Oil Analysis and Maintenance
- Oil Analysis is a key component of Condition-based Maintenance, along with Ultrasonics, Vibration, and Thermography.
Oil Quality and Filtration
- Oil filtered using 25-micron filters is typically the cleanest.
- Reducing lubricant usage reduces total lubricant costs, reduces labor for housekeeping, and reduces or eliminates some safety issues.
Motor Oil and Viscosity
- The "W" in 15W-40 motor oil stands for Winter.
- In the ISO VG system, the temperature is 40°C and the unit of measure is centistokes (cSt).
Lubricant Storage and Handling
- A leaking lubricant storage container should be returned to the supplier to prevent contamination ingression.
- Lubricant containers should be date-stamped with the date of blending, receipt, and opening.
Water in Oil
- The Karl Fisher test is the best test for water determination in oil.
- Water in oil can exist in three phases: dissolved, free, and emulsified.
Oil Oxidation and Viscosity
- The viscosity of an oil increases as it oxidizes.
- An SAE 40 and a 5W-40 oil have the same viscosity at 100°C.
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Description
Test your knowledge of lubrication systems and maintenance strategies with this quiz. Covers topics such as grease composition, synthetic oil types, and maintenance strategies.
