Lubrication Test Questions: Industrial Quiz and Flashcards

Study Notes

What Gets Lubricated

Chain and sprockets
Lubricators
Gearboxes
Ball & roller bearings
Pneumatic Cylinders
Sealed bearings
Sleeve bearings

Types of Contaminants

Water (emulsions causing loss of oil film) & corrosion
Solid impurities – grit wear particles
Foreign bodies – dust etc.– abrasion

Common Lubrication Problems

Over greasing – which can cause attraction of contaminants, raised operating temperatures – leading to lubricant breakdown
Insufficient lubrication – i.e. low oil level in gear box or no grease in bearing – leading to heat build-up and wear
Wrong lubricant – due to poor labelling or understanding of requirements e.g. oils containing sulphur can damage bronze components in gear boxes
Lubrication not reaching intended area – Due to poor application or blockages / leaks within application system

Importance of Cleaning and Inspection

Grease left around nipple… can attract grit
Over lubrication & poor cleaning can attract contaminates causing premature wear and further ingress of contaminants
Clean surfaces do not attract contaminants
Hidden Contamination - Bearing with cap in place – looks clean but looks can be deceiving. Rust contamination found under cap. The cap also traps water against the cast iron housing generating rust.

Typical Greasing Procedure

Check lubrication standard on CILT (type of grease & number of pumps)
Check grease gun (correct type & sufficient grease)

Why We Lubricate

To eliminate accelerated deterioration
Reduces Wear
Prevents corrosion
Cools rubbing surfaces
Reduces friction
Seals out or flushes away contamination
Dampen shocks

Types of Lubricants

Grease
Oil
Aerosol
Come in food grade or non-food grade variants

Grease vs.Oil

Grease is a base lubricating oil with thickeners added
It is thick, or viscous, semi-solid lubricants which will not leak out as easily as oils
Oil : Thin & can be pumped continuously through equipment to remove heat
Greases are used:
- Instead of oil when the lubricant has to stay in one place or stick to a part
- When the component cannot be lubricated often or is not accessible during operation
- To prevent friction and wear, to protect against corrosion
- To provide a seal from dirt and water
- To provide lubrication that does not leak or drip off the surface to which it is applied
- To lubricate for a long time without breaking down

Safety Considerations

National Sanitary Foundation H1

Examples of Lubrication Application

Lubricant Application – Grease Gun
Grease guns are one of the most common application methods in the brewery
May not pump grease – blockages, poor attachment of coupler
Potential damage to bearing if you over-grease & there is a blockage
Introduce contaminants into grease system

Description

Test your knowledge on industrial lubrication by identifying components that need proper lubrication, common lubrication problems, and types of contaminants affecting machinery. This quiz covers chain and sprockets, gearboxes, bearings, pneumatic cylinders, and more.