Free RCM Resources
Tools, checklists, and educational content to support your reliability journey. No signup required for the tools—just start using them.
Interactive Tools
RCM Decision Diagram
Interactive step-by-step tool to determine the right maintenance strategy for any failure mode. Based on Moubray's methodology and SAE JA1011 standards.
Try it free →Criticality Calculator
Score and rank your equipment by criticality to prioritize maintenance resources and identify where to focus your RCM analysis efforts.
Try it free →ROI Calculator
Build the business case for RCM. Calculate potential savings, payback period, and 5-year ROI using industry benchmarks. Executive-ready reports included.
Try it free →Readiness Assessment
Assess your organization's RCM readiness across 5 key areas. Get a personalized report with category scores, recommendations, and suggested next steps.
Take assessment →RCM Basics
What is RCM?
Reliability Centred Maintenance (RCM) is a structured methodology for determining the maintenance requirements of physical assets in their operating context. It was originally developed in the civil aviation industry and has since been adopted across manufacturing, utilities, mining, oil & gas, and other asset-intensive industries.
The goal of RCM is to preserve system function—not just the equipment itself. By focusing on what the asset needs to do rather than what it is, RCM helps organizations develop maintenance strategies that are both effective and efficient.
The Seven RCM Questions
Every RCM analysis answers these seven questions for each asset in its operating context:
- 1What are the functions?
What does the asset need to do? What performance standards must it meet?
- 2What are the functional failures?
In what ways can it fail to fulfill those functions?
- 3What are the failure modes?
What events cause each functional failure?
- 4What are the failure effects?
What happens when each failure occurs?
- 5What are the consequences?
Does it affect safety, environment, operations, or only repair costs?
- 6What can be done to prevent or predict the failure?
Is there an applicable and effective proactive task?
- 7What if no proactive task can be found?
Should we accept the risk, or is redesign required?
Key Standards
- SAE JA1011: Evaluation Criteria for RCM Processes
- SAE JA1012: Guide to the RCM Standard
- IEC 60300-3-11: Reliability centered maintenance
Essential Reading
- John Moubray: Reliability-centred Maintenance (RCM II)
- Nowlan & Heap: Original 1978 RCM Report
- Anthony Smith: RCM - Gateway to World Class Maintenance
RCM Implementation Checklist
Track your progress through a complete RCM implementation. Click items to mark them complete.
0 of 29 items complete
Secure management commitment and sponsorship
RCM requires resources and time. Get executive buy-in before starting.
Select pilot system/equipment for initial analysis
Choose something important enough to matter, but contained enough to finish.
Assemble cross-functional analysis team
Include operators, maintainers, engineers, and subject matter experts.
Gather existing documentation (P&IDs, manuals, maintenance history)
Historical failure data is gold. Collect everything you can find.
Train team on RCM methodology
Everyone should understand the seven questions and decision logic.
Define operating context and boundaries
Specify load, environment, duty cycle, and interfaces with other systems.
Establish performance standards
What output/quality/rate defines "working properly"?
Identify regulatory and safety requirements
List any codes, standards, or legal requirements that apply.
List all functions (primary and secondary)
Don't forget secondary functions: containment, appearance, safety devices.
Define performance standards for each function
Quantify where possible: flow rate, pressure, temperature, etc.
Identify hidden functions
Protective devices and standby equipment have hidden functions.
Identify all ways each function can fail
Total loss, partial loss, over-performance are all functional failures.
Document functional failure descriptions
Be specific: "Fails to deliver at least 100 L/min" not just "pump fails".
Identify failure modes for each functional failure
What physical events could cause each functional failure?
Describe failure effects (local, system, plant)
Describe what happens: evidence, safety impact, operational impact.
Assess failure consequences (S/E/O/N)
Safety, Environmental, Operational, or Non-operational consequences?
Document in FMEA worksheet format
Use a standardized template to ensure consistency.
Apply RCM decision logic to each failure mode
Work through the decision diagram systematically for each mode.
Select appropriate maintenance tasks
Condition-based, scheduled, failure-finding, or redesign.
Define task intervals and procedures
Base intervals on P-F interval, cost analysis, or acceptable risk.
Identify any redesign requirements
Some failure modes can't be managed by maintenance alone.
Develop maintenance procedures
Turn task decisions into actionable work instructions.
Load tasks into CMMS/EAM system
Create PM work orders with proper intervals and resources.
Train maintenance technicians
Explain the "why" behind tasks, not just the "what".
Communicate changes to operations
Operators need to understand new monitoring and inspection activities.
Establish review triggers (failures, modifications, time)
RCM is not "set and forget" - schedule periodic reviews.
Track key metrics (failures, costs, availability)
Measure to prove the program is working.
Update analysis based on operating experience
Real-world data should refine your failure mode list and intervals.
Expand to additional systems
Use lessons learned to improve the process for future analyses.
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