Most people become engineers because they feel at least
some affinity for things, be they mechanical, electrical or
structural. This leads us to derive pleasure from assets in
good condition, but feel offended by assets in poor condition.
These reflexes have always been at the heart of the concept
of preventive maintenance. They have given rise to concepts
like "asset care", which as the name implies, seeks to care
for assets per se. They have also led maintenance strategists to believe that maintenance is all about preserving the
inherent reliability or built-in capability of any asset.
In fact, this is not so.
As we gain a deeper understanding of the role of assets in
business, we begin to appreciate the significance of the fact
that any physical asset is put into service because someone
wants it to do something. So it follows that when we main-
tain an asset, the state which we wish to preserve must be one
in which it continues to do whatever its users want it to do.
This in turn implies that we have to focus our attention on
maintaining what each asset does rather than on what it is.
Clearly, before we can do this, we must gain a crystal
clear understanding of the functions of each asset together
with the associated performance standards
For instance, Figure 1 shows a pump with a nominal capacity of 400 litres/minute pumping water into a tank from
which it is being drawn at a rate of 300 litres/minute. In this
case, the primary function of the pump is "to supply water
to the tank at not less than 300 litres/minute".
Most people become engineers because they feel at least
some affinity for things, be they mechanical, electrical or
structural. This leads us to derive pleasure from assets in
good condition, but feel offended by assets in poor condition.
These reflexes have always been at the heart of the concept
of preventive maintenance. They have given rise to concepts
like "asset care", which as the name implies, seeks to care
for assets per se. They have also led maintenance strategists to believe that maintenance is all about preserving the
inherent reliability or built-in capability of any asset.
In fact, this is not so.
As we gain a deeper understanding of the role of assets in
business, we begin to appreciate the significance of the fact
that any physical asset is put into service because someone
wants it to do something. So it follows that when we main-
tain an asset, the state which we wish to preserve must be one
in which it continues to do whatever its users want it to do.
This in turn implies that we have to focus our attention on
maintaining what each asset does rather than on what it is.
Clearly, before we can do this, we must gain a crystal
clear understanding of the functions of each asset together
with the associated performance standards
For instance, Figure 1 shows a pump with a nominal capacity of 400 litres/minute pumping water into a tank from
which it is being drawn at a rate of 300 litres/minute. In this
case, the primary function of the pump is "to supply water
to the tank at not less than 300 litres/minute".
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