Assessment Criteria for RCM
Reliability Centered Maintenance (RCM) is one of most effective approaches for establishing and development as well as improving Preventive Maintenance Program. It simply makes system more reliable and safer. It focuses on preserving and protecting functions of system i.e. To maintain functions of system in its existing or original state rather than protecting and conserving equipment’s. Assessment i.e. Evaluation criteria of RCM is not very difficult one. It simply asks seven questions about particular asset or system or equipment that is under review. These questions are given below :
These are explained as following below.
- Identify System or equipment Functions :
Which pieces of equipment you will measure and evaluate and how well they should perform? One need initially determines equipment or asset that is needed to be analyzed and then determines what and how does particular equipment work. One should know that how does particular equipment meet desired goals of company as well as how it increases customer satisfaction and fulfill customer needs.
- Identify Failure Modes :
What are different ways in which your selected piece of equipment might fail? After determining functions of equipment, one needs to analyze and determines different ways in which particular equipment can breakdown or fail. In simple words, one needs to determine all possible sources of failure of particular equipment. Different failures modes can be :
- Human error
- Manufacturing flaws
- Design Failure
- Engine Malfunction, etc.
- Identify Failure Causes :
What are different causes of each failure that is identified? After determining different failure modes, one needs to determine various causes that can lead to particular failure of equipment. In simple words, one needs to determine main root cause of particular failure. One should know that why particular failure occurred, what are its main causes that lead to occurrence of failure.
- Identify Effects of Failures :
What will be possible effect of failure on system if it occurs? After identifying all possible root causes of failure, one needs to determine overall impact of particular failure on system if somehow failure occurs. One needs to determine how particular failure affects system, productivity, overall cost, quality of end product, etc. In simple words, one needs to determine how severe or critical failure can be if it happens.
- Identify Consequences of Failure :
How does each failure that is identified affects company’s bottom line? After identifying effect of failures, one needs to determine how particular failure affects health and environment of system. One should know how do particular failure can affect safety of individual and working environment of system as well as physical condition of system or equipment. One should also determine cost associated with particular failures.
- Determine Preventive Tasks :
What are different ways in which one can prevent each failure from its occurrence? After determining consequences of failures, one should determine what possible tasks or methods can be implemented simply to prevent failure from its occurrence. One should choose most suitable method to prevent particular failure after analyzing severity, criticality of failure, and needs of the facility. Its one of major tasks to do so and is not an easy one. Identifying most effective maintenance task or method that is cost-effective also requires one to be more careful and selective. Particular task chosen should prevent failure from its future occurrence.
- Identify Alternatives :
What else can be done to ensure that failures are addressed quickly if suitable preventive method is not identified? If somehow selected maintenance method gets failed or does not prevent failure from its occurrence, then one should know what other methods are available and can be applied to prevent failure. RCM Team should have a replacement of particular method if it gets failed somehow or does not work properly. This replacement decision is very critical and essential.