Which Maintenance Approach Is Right for Your Operation?

It's Friday afternoon. A piece of equipment goes down. Someone's on the phone trying to source a part, production has stopped, and the whole team is in reactive mode. Again.

If that sounds familiar, you're not alone. Most operations are more reactive than they'd like to admit, not because their people aren't skilled, but because nobody ever sat down and made a deliberate choice about how maintenance should work. It just... evolved.

There are three broad approaches to maintenance. Most operations use some version of all three, often without realising it. Understanding the difference helps you put the right approach in the right place, rather than applying the same logic to every piece of equipment on your floor.

1. Reactive maintenance: fix it when it breaks

This is exactly what it sounds like. Equipment runs until something fails, then you fix it.
There's a tendency to treat reactive maintenance as a failure of planning, but that's not always fair. For low-criticality equipment where failure has minimal consequences, it can be a perfectly rational choice. No planning overhead, no scheduled downtime, no maintenance spend until you actually need it.

The problem is when reactive maintenance becomes the default for everything, including the equipment you can least afford to lose. When a critical piece of your line goes down without warning, you're not just dealing with a repair bill. You're dealing with lost production, idle labour, potential product waste, and in some cases, customer penalties. The cost of the part is often the smallest part of the problem.

We see this regularly when we're called out for urgent repairs: the breakdown itself was predictable, but nobody had a system in place to catch it.

2. Preventive maintenance: service it on a schedule

Preventive maintenance moves you from reacting to planning. You service equipment at set intervals, based on time or usage, regardless of whether anything seems wrong.

This is a significant step forward for most operations. You get predictability. You can plan maintenance around production schedules rather than scrambling when something fails. And for equipment with fairly predictable wear patterns, it works well.

The limitation is that schedules are blunt instruments. You'll sometimes service equipment that didn't need it yet, spending time and money unnecessarily. And you'll occasionally miss something that deteriorated faster than expected. The calendar doesn't know what's actually happening inside your machinery. That said, for the majority of equipment in most operations, a well-run preventive maintenance programme is the right answer. It's practical, it's plannable, and it's a big improvement over waiting for things to break.

3. Predictive maintenance: service it when the data says to

Predictive maintenance takes a different approach. Instead of fixed schedules, you monitor the actual condition of equipment, using things like vibration analysis, temperature monitoring, or wear indicators, and intervene when the data tells you something is changing.
Done well, this is the most efficient use of your maintenance resource. You're not over-servicing equipment that's fine, and you're catching problems before they become failures.

The honest caveat: predictive maintenance requires investment. You need monitoring tools or sensors, someone capable of interpreting what the data is telling you, and enough volume and criticality to justify the cost. For a single conveyor in a small operation, it's probably overkill. For the primary line in a high-throughput facility where every hour of downtime costs thousands, it starts to make a lot of sense.

The right approach is usually a mix

The mistake is thinking you need to pick one approach and apply it everywhere. Well-run operations typically tier their equipment by criticality and match the maintenance approach to the risk.

The bottleneck on your main line? That deserves serious attention, whether that's a rigorous preventive schedule or condition monitoring. The gravity roller at the back of the warehouse? Reactive is probably fine.

The goal isn't to adopt a philosophy. It's to be intentional about where you're spending your maintenance resource, and why.

Where to start

If you're not sure where your operation sits, a useful first step is simply listing your ten most critical pieces of equipment and asking: what's our current approach for each one, and is that actually the right call?  For most operations, that exercise alone surfaces two or three things worth changing.

MCL works with clients across all three maintenance models, from supplying parts quickly when something fails unexpectedly, to helping operations build out planned maintenance programmes for their conveyor systems. If you'd like to talk through what makes sense for your setup, get in touch or take a look at our repairs and service page.