Week 3 - Maintenance Strategies

Question 1

What are the three key types of maintenance approach?

Answer 1

Risk-based maintenance

Reliability centred maintenance

Remote condition monitoring

Question 2

Describe risk-based maintenance.

Answer 2

Risk based maintenance strategies are based upon two main phases:

• Risk assessment (using a risk register & matrix)

and

• Maintenance planning based on the risk

Question 3

Describe reliability centred maintenance.

Answer 3

Reliability centred maintenance is a framework that enables the definition of a complete maintenance regime.

Question 4

What 4 key questions is reliability centred maintenance based upon?

Answer 4

• What is the system FUNCTION
• What functional FAILURES are likely to OCCUR
• What are the CONSEQUENCES of failure
• What can be done to REDUCE the failure

Question 5

Describe remote condition monitoring, as a form of condition based maintenance.

Answer 5

Remote condition monitoring uses sensor and live performance data to make decisions about the assets, including automated inspection and data collection.

Question 6

What must be considered when applying a replacement and depreciation model.

Answer 6

• Financial case considered only.
• Output is heavily reliance on having access to accurate, up-to-date information

Question 7

What are the positives of a replacement and depreciation model?

Answer 7

• Provides a view of when assets should be replaced or upgraded based upon efficient spend of money.
• Helps a company develop a spending plan, and plan for future investments.

Question 8

What are the limitations of a replacement and depreciation model?

Answer 8

• Reliant upon projections of future cost and depreciation
• Based on estimates which may prove to be wrong