Reliability Centered Maintenance (RCM) in the Facilities Environment

The following article was originally published by Reliability Web. The original article may be found here

The role of RCM in the facilities (non – production) environment as expected varies dramatically with the age and type of facility being operated and maintained thus, the type of RCM to be applied must be carefully decided to ensure both tangible and intangible benefits will be realized within the budgetary constraints of the organization. In addition, the dynamics of the organization where RCM is being considered must be considered before selecting the optimum approach. For example, an organization involved in large scale construction and/or renovation will have substantially different requirements and resultant business case than one focused on sustaining the status quo via a maintenance and minor repair approach.

The business case for RCM implementation for the majority of existing facilities where the inventory is stable is primarily based on the following cost avoidance techniques:

  • Reduction in time based maintenance hours
  • Reduced catastrophic failures and resultant costs
  • Age Exploration – OEM recommendations for example

For organizations where new construction and major revitalization are occurring, the business case also includes using the following to identify, implement, and verify (quantification) reliability issues:

  • Failure Modes and Effects Analysis
  • Commissioning
  • Operations and Maintenance tasks
  • Initial tools and training
  • Age Exploration for revitalization

Note: This paper does not address the basics of RCM and is intended as an aid to deciding the applicability and portion of RCM to apply to your facility and operating environment.

Where to Start:

  1. Determine if there is any reason to change the way you do business

While RCM, is the paraphrase others, the only truly logical and empirical approach for establishing and maintaining a maintenance program it is not for everyone and should not be pursued unless there is a factual basis which offers either tangible or intangible benefits. These benefits include only the following:

  • Reliability issues in – terms of safety, security, and mission
  • Financial return both, direct and lost opportunity costs

Building the business case and implementation strategy should be based on both strategic (global) and tactical (event) key performance indicators regardless of the type of facility being considered.

Life Cycle

Choosing the Appropriate RCM Approach

There are several ways to conduct and implement an RCM program.  The program can be based on rigorous Failure Modes and Effects Analysis (FMEA), complete with mathematically-calculated probabilities of failure based on design and/or historical data, intuition or common-sense, and/or experimental data and modeling.  These approaches may be called Classical, Rigorous, Intuitive, Streamlined, or Abbreviated.  Other terms sometimes used for these same approaches include Concise, Preventive Maintenance (PM) Optimization, Reliability Based, and Reliability Enhanced.  All are applicable.  The decision of what technique to use should be left to the end user and be based on:

  • Consequences of failure
  • Probability of failure
  • Historical data available
  • Risk tolerance

Classical/Rigorous RCM

a.  Benefits

Classical or rigorous RCM provides the most knowledge and data concerning system functions, failure modes, and maintenance actions addressing functional failures of any of the RCM approaches.  Rigorous RCM analysis is the method first proposed and documented by Nowlan and Heap and later modified by John Moubray, Anthony M. Smith, and others.  In addition, this method should produce the most complete documentation of all the methods addressed here.

b.  Concerns

Classical or rigorous RCM historically has been based primarily on the FMEA with little, if any, analysis of historical performance data.  In addition, rigorous RCM analysis is extremely labor intensive and often postpones the implementation of obvious condition monitoring tasks.

c.  Applications

The classical approach should be limited to the following three situations:

  • The consequences of failure result in catastrophic risk in terms of environment, health, or safety and/or complete economic failure of the business unit.
  • The resultant reliability and associated maintenance cost is still unacceptable after performing and implementing a streamlined type FMEA.
  • The system/equipment is new to the organization and insufficient corporate maintenance and operational knowledge exists on its function and functional failures.

Abbreviated/Intuitive/Streamlined RCM

a.  Benefits

The intuitive approach identifies and implements the obvious, usually condition-based, tasks with minimal analysis.  In addition, it culls or eliminates low value maintenance tasks based on historical data and Maintenance and Operations (M&O) personnel input.  The intent is to minimize the initial analysis time in order to realize early-wins that help offset the cost of the FMEA and condition monitoring capabilities development.

b.  Concerns

Reliance on historical records and personnel knowledge can introduce errors into the process that may lead to missing hidden failures where a low probability of occurrence exists.  In addition, the intuitive process requires that at least one individual has a thorough understanding of the various condition monitoring technologies and failure mechanisms.

c.  Applications

The streamlined approach should be utilized when:

  • The function of the system/equipment is well understood.
  • Functional failure of the system/equipment will not result in loss of life or catastrophic impact on the environment or unit business.

For these reasons, the streamlined or intuitive approach is recommended for the majority of facilities. Exceptions are where single points of failure exist and the associated risk of failure cannot be mitigated.

The streamlined or intuitive approach is recommended due to the high analysis cost of the rigorous approach, the relative low impact of failure of most facilities systems, the type of systems and components maintained, and the amount of redundant systems in place.  The streamlined approach uses the same principles as the rigorous, but recognizes not all failure modes will be analyzed.  RCM users have reviewed the various processes in use and have determined that the most economical and efficient approach is to use a combination of rigorous (formal) and intuitive analysis depending on system criticality and failure impact.

A more rigorous analysis may be warranted for those systems and components where the streamlined or intuitive RCM process has been used and the resultant reliability is still unacceptable in terms of security, safety, cost, or mission impact.

Three Approaches to RCM

1.  Globally Dispersed – Large New Construction Effort

a.  Use of generic FMEA data to construct maintenance program tasks, interval, and training programs
b.  Commissioning developed using FMEA with a concentration on identifying and addressing single points of failure
c.  Criticality and probability of failure used to determine stocking plan
d.  Roving condition monitoring teams to determine priority and scheduling of repair and PM teams
e.  Root cause failure centrally located and coordinated by system experts
f.  Metrics developed to track availability, mean time between failure, and costs
g.  Significant overhaul of design and procurement process to implement RCM
h.  Process reengineering used to identify potential opportunities

2.  Dispersed – Aging and Diminishing Inventory

a.  No FMEA performed on standard facility equipment where sufficient redundancy existed. FMEA performed on a case – by -case basis for critical program equipment
b.  Immediate implementation of condition monitoring technologies appropriate to machinery type and mission
c.  Dispersed technologists at each location
d.  Minimum central management
e.  Virtual teams to shard information
f.  Commissioning limited to condition monitoring acceptance testing
g.  Metrics developed to track availability, mean time between failure, and costs
h.  Limited changes to building specifications

3.  Centrally Located (for the most part) – Limited Revitalization

a.  Generic FMEA used and all maintenance tasks revised
b.  RCM added to position descriptions and annual performance plans
c.  Spare parts switched to Just – In – Time
d.  Dispersed first line maintenance with centralized technologists
e.  Immediate implementation of condition monitoring technologies appropriate to machinery type and mission
f.  Limited use of acceptance testing
g.  Metrics developed to track availability, mean time between failure, and costs and reported to all levels of the organization on a monthly basis
h.  On -going training program implemented – 40 hours per employee per year

In closing, there are these basic rules:

  • Pick the appropriate level of sophistication based on a business plan which addresses implementation cost, time required, return – on investment, and risk mitigation
  • Create and apply the appropriate Key Performance Indicators and make them public
  • Communicate and train everyone
  • Be shameless in promoting your program – crow about your successes and acknowledge your failures in order to build and maintain credibility
  • Do not over analyze
  • Stay the course, RCM is not a program of the quarter
  • Design and use your management software to analyze and identify areas problems
  • Do not simply add a condition monitoring technology without understanding related changes

Article submitted by Alan K. Pride, Associate Director, Smithsonian Institute

Where is Your True North?

This blog will address what I feel are the more practical aspects and user considerations of what it takes to implement and manage an Enterprise Asset Management System (EAMS) in facilities or processing plants.  There are many challenges to making an EAMS work but a key component in today’s world is how do you simplify the user experience.  Steve Job’s showed us how to take that concept to reality.  Expectations from users are high – There is an App for that.  Where are we providing a similar user experience in our Maximo world?

That being said lets back up a minute and talk about the real reason we use Maximo:  Achieving Plant and Facilities Excellence.

Implementing Maximo is a daunting task.  There are a broad scope of applications, functionality within those applications, configurability options, software/hardware requirements, system administration support skills, and reporting options.  Business process re-engineering is also required to match the business needs with the software design.  The standard challenges associated with implementing and upgrading Maximo include:

  • The drive to quickly demonstrate short-term gains
  • Lack of a consistent standard for obtaining KPI measures
  • Ineffective preventive maintenance management planning
  • Inconsistent management of plant outages
  • Lack of understanding the concepts of reliability-based maintenance
  • Configuration of the asset-based work management system
  • Restrictions imposed by corporate IT governance-related mandates
  • Training and resistance to the technology
  • Integration with other core applications

The point being that there are many ways to go off the trail and into the wilderness.  So do you have any idea where your true North is? Do you have a Compass?  Here is a compass to the three things you should focus on to ensure excellence in plant and facilities maintenance:

  1. Asset reliability
  2. Streamlined business processes
  3. Optimized information technology

Asset Reliability
If your equipment or facilities are not up and running you are not in business!  Doing the right things at the right time, with eyes on what matters most better be your primary objective.  Focus here should be on asset failures that could result in:

  • Loss of life or serious personal injury
  • Regulatory compliance violations
  • Adverse effect on the environment
  • Loss of revenue or productivity

Streamlining Business Processes
The credibility of your business depends on collecting accurate data and establishing crystal clear work directions.  Focus on collecting accurate data, no more, no less. Remove un-necessary steps in your business processes that impede productivity.  Constantly question why you do, what you do, how you do it, and who does it.  Peel the onion, get down to the essence of your business processes and close the gap between perception and reality.

Optimizing IT (Information Technology)
Making good decisions relies upon having accurate and timely information. Focus on optimizing the use of dashboards, start centers, smart phones, tablets, and handheld devices to push and pull data in ways that are intuitive to the way you work.  Everyone from the person turning wrenches to the executive in the corner office reaps the benefits of timely and accurate data that is relative to their jobs.  Improve the user experience by making it easy, making it work ‘like I do’, and Optimizing IT.

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About Randy McDaniel:
Randy has a B.S. degree in Mechanical Engineering from the California State University at Fullerton and has spent over 35 years in the field of maintenance engineering, maintenance planning, capital projects construction, and facilities maintenance. His industry experience includes oil refineries, petrochemical plants, universities, steel mills, assembly plants, lumber mills, and utility plants.

He has spent time as a Maximo senior consultant providing business process re-engineering assessments and managing Maximo implementations. A vocal advocate of Maximo, Randy has been the Chairman of the Southern California Maximo Users Group since 1998 where he often presents best practices, tips and other real life Maximo experiences.

Currently Randy is the Maximo System Administrator and Facilities Management Information Systems Integration Manager at the University of California Los Angeles. He manages the implementation of Maximo and provides IT integration direction and vision for the General Services business unit.

This post originally appeared on the Tivoli User Community boards on January 29, 2013, and is reprinted with permission of the author