Lubrication System

Question 1

What are the components in a lubrication system?

Answer 1

Sump and sump strainer
Lube oil pump
Priming pump
Filter
Heat exchanger
3 way cock valve
Cooler isolation valve
Bypass valve
Reducing valve
Engine block
Pressure relief valve

Question 2

What does the lube oil pump do?

Answer 2

Supplies oil under high pressure to the engines bearings and supplies oil at a lower pressure to the other working parts of the engine. It is a positive displacement pump.

Question 3

What does the priming pump do?

Answer 3

Provides a method of supplying lube oil to the bearings prior to inital starting. It also provides a method of emptying the sump when necessary for maintenence.

Question 4

What does the heat exchanger do?

Answer 4

Cools the lube oil using a thermostat which will open valves allowing the oil into the heat exchange to maintain its temperature.

Question 5

What is the testing kit used for routine oil checks?

Answer 5

Kittewake

Question 6

What are the 4 routine tests?

Answer 6

Viscosity test
Water test
Total base number/acidity
Insolubles

Question 7

How often are routine tests performed and where are the results stored?

Answer 7

Weekly or more often if a fault is detected. Stored in the engines log book.

Question 8

What is the purpose of a lubrication system?

Answer 8

To supply lube oil to the moving parts of a diesel engine to minimise friction and wear and ensure smooth running of the engine.