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Reliability Centered Maintenance:Reliability Centered Maintenance:

General IntroductionGeneral Introduction

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RCM -

scheduled maintenance program.

industries

SAE Standard JA1011 on RCM evaluation

criteria

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What Is RCM? A lo ical technical rocess that determines which

maintenance tasks will ensure a reliable system, underspecified operating conditions.

It e ves into ow t e system wor s, w at can go wrong

in the system, and how to deal with these possible

failures.

The goal is to make the system as reliable as it was

designed to be.

It is critical to understand the operating conditions:location, atmosphere, humidity, speed, acceleration, etc.

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Why Use RCM? . .

Airline industry; Military equipment; Mining

The main reasons: Knows the system, Know

what ma o wron Know the conse uences ofthe possible failures, Selects suitable strategies to

deal with them, Utilize condition monitoring,

time-based PM, usage-based PM, run to failure,etc.

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Who Should Use RCM? , ,

productivity is essential.

industries); tight delivery schedule

(manufacturing); availability has to be high;possibly being sued.

Total time- Failure downtime MTBFAvailability= =

Total Time MTBF+MTTR

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The RCM Process

Determine its functions

What could cause these failures?

Select appropriate maintenance tactics

ocumen e ma n enance program an re ne asneeded

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What System to Study?

Environmental compliance

Production quality

Public image

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What May Go Wrong?

Possible failures: high, low, on, off, open, closed,

Failure mode? Failure cause? Hydraulic cylinder

stuck: Poor lubrication Leakin Surfacecorrosion, etc.

What are the consequences?

Hidden failure or self-revealing failures?

Detectable? Condition monitoring.

FMECA

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Task Grouping , .

For each system, there are numerous devices.

, .

For each function, there may be several failures.

,

modes with varying effects and consequences.

, .

w up s s , , e .

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RCM Implementation

Train them in RCM

Select a pilot project for RCM

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The RCM Team

Equipment, Operations, Reliability, Design, etc

, ,

Manager, Maintenance Manager, Engineering

Desi ner Reliabilit En ineer

Training, Communication, Top Management

Commitment

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Implementation Failures

Lack of top management support Lack of vision of what RCM can do

No clearly stated reason for doing RCM

Conflict among stakeholders Giving up too early

Errors in the rocess of doin FMECA, reliabilit

analysis, etc.

Lack of information on equipment

Others

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