CMM:
You can have it all
by R.T. “Chris”
Christensen
We all are looking
for the most cost-effective way to have the most reliable facilities
while, at the same time, minimizing the total maintenance cost of the
operation.
Many companies place
this challenge among the objectives of their maintenance manager.
Nothing to it, right?
The easy way to
accomplish this is to stop producing anything. Shut down all of the
equipment and then it won’t break or need repair. Problem solved.
You have eliminated the entire maintenance cost of operation and have
aggressively achieved your maintenance cost-reduction goal.
The second choice is
to never repair anything and let the equipment fall into total ruin.
This is how Dilbert might do it.
But, obviously,
neither of these two options is acceptable.
If you choose Option
1, you’d be out of business. If you choose Option 2, a
run-it-until-it-dies mentality consumes the plant and equipment, all
to meet the objective of reduced cost.
You and I know that
these are totally bizarre approaches to maintenance, and no one in
their right mind would even consider doing something like this. But
nevertheless, I see companies challenge their maintenance managers to
do just that. Reduce costs. Consume the plant, wear it out to get the
revenue, and we’ll worry about fixing it later. Or, there’s the
all-too-common, “I’ll let my successor figure out how to get the
equipment back in order. I got the savings on my resume and am on to
bigger and better things.”
Can we have it both
ways — reduced maintenance costs and improved equipment?
There is a concept
that just might accomplish both tasks. It’s CMM, or Condition
Maintenance Management. If you look at CMM, understand it and
implement the philosophy, you can, as they say, light both ends of the
candle.
Condition Maintenance
Management is a way of doing business. It’s a way to look at your
equipment and implement a maintenance program that actually
contributes to the equipment’s welfare. You don’t just repair the
equipment and fix it when it fails. CMM goes beyond this. It goes
beyond TPM, PM and all the other maintenance tasks that you perform.
In CMM, you look at
the equipment and, through the use of diagnostic tools, determine the
condition of the equipment. Conditional maintenance states that you
move from a reactive environment to a proactive environment in your
approach to equipment maintenance.
Simplistically
speaking, using an automobile example, this means that even though the
maintenance schedule or PM calls for 7,500 miles between oil changes
and 15,000 miles between filter changes, you up the maintenance
schedule in order to change the oil and filter every 3,000 miles. I
don’t know about you, but I do this. In the last 20 or so years that
I’ve doing this, I’ve never had a problem with any component in
any of my cars that relies on engine oil for lubrication and cooling.
And, I routinely get more than 200,000 miles on my cars (263,000 miles
on my VW Sirocco). I manage the equipment for the long haul. By doing
this, I’ve reduced the maintenance cost and increased equipment
life.
This is CMM, a
philosophy of maintaining the equipment for the long haul. You spend
your money up front on predictive maintenance, proactive maintenance,
noise analysis, vibration analysis, infrared analysis and ultrasound.
CMM means that you identify the cause of the problem before it becomes
a problem. And if there is a problem, you resolve it there and then.
By doing so, you maintain the equipment at a high level.
And, do you know
what? Like my car, you will get the 200,000 miles out of your
equipment. By maintaining the equipment before there is a problem, you
will, in fact, significantly reduce your maintenance costs. You will
meet the goal of reduced maintenance costs. But, most importantly, you
will get the cost reductions, too. You will generate revenues beyond
anything you have seen. Why? Because the equipment runs at optimum
levels with virtually no unplanned outages. That equipment will
deliver at a high volume and at an exceptional quality level for your
products.
CMM lowers
maintenance costs, increases yields, improves ongoing quality levels,
and minimizes unscheduled and costly downtime. Take a look at the
philosophy.
If you want to chat
about CMM in further detail, send me an e-mail or give me a call.
R.T.
"Chris" Christensen is the director of the University of
Wisconsin School of Business' operations management program. If you
have a question, contact Coach Christensen by phone at 608-441-7326
ore-mail cchristensen@execed.bus.wisc.edu.
This
article appeared in the October/November 2004 issue of MRO
Today magazine. Copyright 2004.
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