Are You Getting ROI From Your CBM Program?
Condition monitoring can identify developing faults, but finding faults alone does not demonstrate business value. Explore what determiCondition monitoring can identify developing faults, but finding faults alone does not demonstrate business value. Explore where CBM programs can lose value between detection, maintenance decision-making and intervention whether a CBM program is genuinely delivering a return.
Condition monitoring can identify developing faults — but finding faults alone does not demonstrate business value. The real return from CBM comes from what happens after the condition is identified.
For many organisations, a CBM program may appear successful.
Routes are being completed. Reports are being issued. Warning and Alarm conditions are being identified. Bearings, alignment problems, lubrication issues and other defects are being detected.
But there is a more important question:
Is the CBM program actually delivering a measurable return?
The value of condition-based maintenance is not simply in detecting a defect. Value is created when that information enables the business to make the right maintenance decision, at the right time, with minimum disruption to production.
That requires much more than good vibration analysis or oil analysis.
Finding the Fault Is Only the Beginning
A technically correct diagnosis is important, but it is only the start of the process.
Once an abnormal condition is identified, the maintenance organisation still needs to understand:
- What is actually happening?
- How quickly is the condition deteriorating?
- How confident is the diagnosis?
- What happens if the asset fails?
- Can the asset continue operating?
- When is the best opportunity to intervene?
- Are the necessary spares and resources available?
If these questions are not addressed, a technically successful CBM program can still fail to deliver its potential value.
Warning and Alarm Conditions Need More Than a Status
A machine entering Warning or Alarm should not simply remain on a report month after month.
The condition should be understood in context.
Has the measurement recently entered Alarm, or has it been there for several months?
Is the amplitude increasing, stable or fluctuating?
Are the Warning and Alarm settings still appropriate based on the historical behaviour of the asset?
Has a likely cause been identified?
Where a measurement point remains in Warning or Alarm without a clear explanation, further investigation may be more valuable than simply continuing to collect the same data.
A CBM report should help the maintenance team understand why the condition has changed and what needs to happen next.
Consequence of Failure Does Not Automatically Mean Immediate Maintenance
One of the most important maintenance decisions is when to intervene.
An asset may have a very high Consequence of Failure, but that does not necessarily mean a developing defect requires immediate shutdown.
If the condition is still at an early stage and degradation is slow, the better business decision may be to continue operating under controlled conditions while preparing the maintenance properly.
That could allow the organisation to:
- obtain the required spare parts;
- organise specialist resources;
- prepare the work order;
- identify an appropriate maintenance window;
- increase monitoring;
- establish escalation criteria; and
- intervene when disruption to the business is lowest.
The objective is not simply to avoid failure.
It is to avoid failure without unnecessarily sacrificing useful asset life or production availability.
Alarm Does Not Always Mean “Emergency Standby”
Another area where value can be lost is the automatic treatment of an asset as a bad standby or emergency use only simply because a measurement point has entered Alarm.
An Alarm is important, but the actual condition still needs to be assessed.
Depending on the defect, rate of deterioration and operating circumstances, continued operation may be possible with additional controls.
These could include increased monitoring, defined review dates, operating restrictions and clear escalation criteria.
The maintenance decision should be based on risk and condition, not simply the colour attached to a measurement point.
Are Spares and Resources Being Checked Early Enough?
CBM should give maintenance teams something extremely valuable:
time.
If a defect is identified early enough, that time should be used.
Required parts can be checked.
Long lead times can be identified.
Specialist support can be arranged.
Work orders can be prepared.
Maintenance can be aligned with an existing shutdown or production opportunity.
If these activities only begin when the condition becomes urgent, much of the advantage provided by early fault detection has already been lost.
Maintenance Opportunities Matter
A technically perfect intervention date is not always the best business intervention date.
If an asset can continue operating safely and a suitable planned shutdown is approaching, that opportunity may provide significantly greater value than stopping production immediately.
Equally, allowing a deteriorating condition to continue beyond an available maintenance opportunity may result in a later emergency intervention.
Effective CBM therefore needs to consider both:
How long can the asset reasonably continue?
and
When is the most advantageous opportunity to carry out the work?
Someone Needs to Own the Condition
Assets operating with known defects should not simply remain on recurring CBM reports.
There should be a responsible person associated with the condition and a defined review date.
That does not mean allocating blame if the asset subsequently fails.
It means ensuring that somebody is responsible for confirming that:
- the condition is reviewed;
- monitoring continues;
- controls remain appropriate;
- maintenance preparation progresses; and
- the planned intervention is not forgotten.
Without clear ownership, even well-diagnosed faults can remain unresolved for months.
What Happens After Maintenance?
The maintenance intervention itself provides some of the most valuable information available to a CBM program.
Was the predicted bearing defect actually present?
Was the severity consistent with the diagnosis?
Was the selected maintenance action correct?
Was the intervention performed too early, too late or at approximately the right time?
Did the repair address the actual problem?
That information should be fed back into the CBM process.
Without feedback, the organisation loses the opportunity to determine whether its diagnosis, alarm levels, recommendations and intervention decisions are actually effective.
Cost Avoidance Is Not the Only Measure of CBM Value
A common CBM performance measure is hypothetical cost avoidance:
“If this fault had not been detected and the asset had failed, the cost would have been £X.”
That can be useful, but it is difficult to demonstrate because it relies on an event that never happened.
There are other questions that provide valuable evidence of how well the CBM process is performing:
Was the identified defect correct?
Was the selected maintenance action correct?
Was maintenance implemented at the correct time?
Was the maintenance correctly planned?
Have assets failed without a prior identifiable change in condition?
These measures begin to show whether CBM is improving maintenance decisions rather than simply identifying faults.
Look at the Whole CBM Process
The technology itself may be working perfectly.
Your vibration system may be excellent.
Your oil analysis laboratory may be excellent.
Your CBM provider may be technically competent.
The opportunity often lies in the process between the CBM finding and the final maintenance outcome.
That is where intervention timing, planning, ownership, risk management and feedback become critical.
The objective is simple:
Find the developing condition early enough to make the right maintenance decision, prepare properly, intervene at the best opportunity and demonstrate the resulting business value.
That is where CBM delivers ROI.
How Does Your CBM Program Compare?
If you would like to explore whether your current CBM process is delivering the value it should, complete the:
Free CBM Health Check
The Health Check looks at CBM reporting, maintenance decision-making, intervention timing, planning, continued-operation controls and performance feedback.
TAKE THE FREE CBM HEALTH CHECK →
Or, if you would prefer to discuss your current CBM arrangements directly: