| Part 2 of a
3 part series by Steve
Turner
Paper
first presented at the International
Conference of Maintenance Societies, Melbourne 2001
Part 2 of the paper
aims to explain how Planned Maintenance Optimization
(PMO) and Reliability Centered
Maintenance¹ (RCM) are quite different processes
– RCM being a process developed by Nolan and Heap
(1978) for the design phase of the asset
life cycle² and PMO being developed for assets
that have been commissioned. The paper demonstrates
how PMO achieves the same analysis outcomes as RCM
does but at a cost six times less and at a speed six
times faster than RCM³ .
The
common methods for defining the initial maintenance
requirements for plant and equipment are as follows:
·
Reliability Centered Maintenance (RCM),
·
Streamlined Reliability Centered Maintenance,
·
Statistical Methods, or
·
Experience, trial and error.
The
origin of the processes is briefly discussed below.
Nolan
and Heap (1978) coined the term Reliability Centered
Maintenance (RCM) and developed the original method.
RCM was not designed for use for “in
service” assets.
However, in the absence of better methods since
1978, it has been applied retrospectively in many
organizations after the plant has been commissioned.
In over 20 year since its derivation, RCM has
failed to become a day to day activity performed by
most organizations.
Few organizations have applied RCM to anything
other than their most critical assets which indicates
there are serious difficulties associated with
applying RCM in organizations with mature plant.
Click here for page 2
¹ Any
reference to RCM in this paper from this point will be
referring to the standard SAE JA1011.
²
RCM was developed by Nolan and Heap
(1978) for the purpose of defining the initial
maintenance requirements of commercial aircraft
(Moubray, 1997).
As these aircraft must have a certified
maintenance program before they can enter service, it
can be said that RCM was developed as a process to be
used in the design phase of an asset life cycle.
³(Johnson,
1995) |
