The benefits of preventative maintenance lead to one significant positive: it saves money.
As scheduled maintenance can be tracked, machinery can be serviced based on running time or production output, and any damage can be treated before a piece of equipment fails. This saves time and money compared to unplanned maintenance. Additionally, complex process equipment often has specialised custom-made parts which take weeks, if not months, to manufacture. Thus, stock control, another key aspect of preventative maintenance, must always be managed.
If a machine breaks down, the cost of repairs will be significantly higher as it could include locating specialist technicians, express delivery of necessary parts, and loss of production.
In the worst case, equipment that is not regularly maintained could break down entirely, and the cost of replacing it would be considerably higher than routine maintenance and partial replacements. In fact, unplanned shutdowns of just a few days can lead to profit losses equating to more than the capital cost of a brand-new system.