Mining Mirror June 2018 | Page 37

Cradle to grave Hidden benefits of good lubricants Total cost of ownership (TCO) is something that needs consistent monitoring and is one of the most important operational responsibilities of fleet managers. According to Patrick Bergman, heavy-duty business development manager for Africa at Mogul, fleet management is about controlling the costs that you can manage and mitigating those that you can’t. “With maintenance typically representing around 20% of total cost to run your fleet (the other 80% being made up by fuel, drivers’ salaries, insurance, tyres, cost of finance, and so on), this is an area you will naturally want to focus on when you’re looking to reduce TCO,” says Bergman. Lubricants and coolants only amount to between 1.5% and 2% of the overall costs to run a fleet. Whether it is yellow metal equipment, off-road, or on-highway tractor-trailer units, this sliver of a manager’s costing pie chart can be easily overlooked. “However, the decisions you make when it comes to purchasing lubricants could have a direct impact on up to 90% of your maintenance costs,” explains Bergman. The most expensive piece of equipment is one that is sitting idle, as it is not generating any revenue even though it is depreciating in value. Equipment failure and downtime can derail project timeframes and budgets. Frequent breakdowns increase maintenance and associated costs (such as parts and transport, as well as replacement equipment and underemployed operators) — especially if you are operating in remote areas. The dust and mud encountered in typical mining envi ronments take their toll over time, and when on a deadline, there is pressure to run each unit for longer between services. This increases the strain on components that may not be adequately protected, which brings us back to lubricants. There is often a temptation to regard lubricants as a commoditised item and to overlook the differences in quality between the various products on the market. At entry level, there is arguably little to choose from in terms of product specifications between different brands, but this is certainly not the case with higher-quality lubricants. Compromising on lubricant quality can soon prove to be a false economy. Lower-quality lubricants are often exposed as inadequate, especially when machines are running at high stress levels in challenging conditions. “There is a direct correlation between the cost of lubricants and overall maintenance costs. In other words, a modest increase in spend on lubricants and coolants (due to a switch to higher-quality products) can help to reduce that huge maintenance figure,” says Bergman.