Could one missing spare part bring your operation to a halt?
The UK government’s advice to keep three days’ worth of essential supplies at home has brought emergency preparedness into everyday conversation. Bottled water, food and torches are simple precautions that can make a difficult situation more manageable when severe weather interrupts power, water or transport.
For businesses that depend on machinery, it raises a familiar question: what do you need to have available when something goes wrong?
Most maintenance teams will have experience of a machine being out of action while somebody tries to find a replacement part. Sometimes it arrives the following morning. Sometimes the quoted lead time is several months. Occasionally, the search reveals that the manufacturer stopped producing it years ago.
By that point, the options may be limited and the pressure to get equipment running again is already building.
The small part with a significant consequence
A component’s value on a purchase order rarely reflects its importance to the operation.
This is where a review of critical spares earns its place. The starting point is understanding which failures would cause the greatest disruption, then checking how those components could be repaired or replaced.
For each critical item, it is worth establishing:
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- Whether a serviceable spare is already held.
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- The current replacement lead time.
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- Whether the manufacturer still supports the part.
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- Whether a suitable alternative has been assessed.
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- How long the equipment is expected to remain in use.
The answers provide a basis for deciding what to buy, what to monitor and where further engineering work may be needed.
Buying ahead needs a clear purpose
We understand that holding stock comes at a cost. It ties up money, takes up space and creates an ongoing responsibility to keep records accurate and parts in suitable condition.
There is little benefit in filling shelves without understanding what the business is likely to need. Equally, relying on a supplier to have stock available can leave an uncomfortable gap when a failure occurs.
The right provision will depend on the consequences of downtime, expected demand, repair arrangements and supply lead times. A single spare may be sufficient for one application. Another may justify several units, particularly where multiple machines use the same component.
Those decisions are easier to make before an urgent requirement removes the time to investigate properly.
Obsolescence changes the calculation
It is common for equipment to remain in service beyond the production life of the components inside it. A machine may still perform its job well, while replacement electronics or other essential parts become increasingly difficult to obtain.
An end-of-life notice can create a final opportunity to purchase stock, but it also creates a decision that deserves careful consideration.
How much will be needed over the remaining life of the equipment? Can failed units be repaired? Is there an alternative? Would an upgrade offer better value than buying and storing several years’ supply?
Buying too little can leave equipment unsupported. Buying too much can leave valuable stock unused. Early visibility of obsolescence gives engineering and procurement teams more time to work through those questions.
The condition of the spare matters
Purchasing the part is only part of the job.
Components held for extended periods may be affected by moisture, temperature, contamination or unsuitable packaging. Some also have shelf-life limits or require periodic inspection.
A stock record showing that a replacement is available provides little reassurance if the item has deteriorated in storage.
Storage requirements should therefore be considered when the purchase is planned, taking account of the component, manufacturer guidance and intended holding period. Traceability and clear identification matter too, so the maintenance team can establish exactly what is available when it is needed.
Taking a closer look at your spares provision
At CMCA(UK), we support organisations with obsolescence management, difficult-to-source procurement and Environmentally Controlled Storage. These services help businesses plan for component availability and preserve the stock they depend on to support equipment over its working life.
The government’s household advice is a useful reminder to review the arrangements we tend to assume will be sufficient.
For a business, that review could begin with one critical machine: identify the part that would be hardest to replace, check its availability and establish what would happen if it failed.
To discuss critical spares, component obsolescence or storage requirements, contact the CMCA(UK) Business Development team at antony.elliott@cmcauk.co.uk or jon.hale@cmcauk.co.uk.