Preventive Planned Maintenance (PPM) has long been considered a cornerstone of effective asset management. The logic is simple: service equipment regularly, replace parts before failure, and reduce the risk of costly breakdowns. On paper, it sounds like the perfect solution to the pitfalls of reactive maintenance.
But what if your PPM strategy is quietly draining your budget instead of protecting it?
Reactive maintenance is easy to criticise. Equipment fails unexpectedly, operations halt and emergency repairs often come with premium labour costs and expedited parts.
PPM, however, isn’t without its flaws.
In many organisations, maintenance schedules are based on fixed intervals rather than actual equipment condition. This often leads to:
Over time, these inefficiencies add up and begin quietly eroding the cost-saving benefits PPM is supposed to deliver.
The core issue lies in assumption-based maintenance. Traditional PPM operates on the belief that failure can be avoided by adhering to a fixed schedule. But equipment doesn’t always follow predictable timelines.
Two identical machines operating under different conditions will wear at different rates. Yet PPM often treats them the same.
The result?
In essence, you may be preventing failures that were never going to happen while missing the ones that matter most.
Many organisations implement PPM with the goal of reducing risk. But without visibility into actual asset condition, they end up optimising for activity rather than outcomes.
It’s worth asking:
The most effective maintenance strategies today are shifting away from rigid schedules toward data-driven approaches.
By incorporating condition monitoring, performance data and predictive insights, organisations can:
This doesn’t mean abandoning PPM altogether, but it does mean refining it. A hybrid approach, combining preventive and predictive methods, often delivers the best balance between reliability and cost control.
Neither reactive maintenance nor traditional PPM is inherently wrong. The problem arises when either is applied without flexibility or insight.
Reactive maintenance is expensive because it waits too long.
PPM can be expensive because it acts too soon.
The goal is to find the balance in between, where maintenance is performed at the right time, for the right reason and with measurable value.
If your maintenance team is always busy but costs keep rising, it may be time to take a closer look at your PPM strategy. Sometimes, the systems designed to save you money are the very ones costing you the most.