Zambian Business Times

Cummins’ Fleet fuel filtration solution enhances use rates in Zambian mines

- continued


This has provided for longer service intervals on the haul trucks, increased oil life span, and improved equipment availabili­ty, which has equated to significan­t improvemen­t in production volumes at the mine, while generating substantia­l savings and reducing the total cost of ownership,” Cummins Filtration Africa mining manager Tinus Naude indicates.

The haul trucks were not achieving the targeted 350-hour service intervals on the fuel filters, owing to sporadic blockages. While fitted with Cummins QSK50 MCRS engines, on-board filter, injector, and injector-pump failures were occurring.

Cummins Filtration was requested to supply a solution to ensure that the fuel was delivered to the injectors at the correct cleanlines­s levels, allowing for the fleet to achieve its intended service hours.

A Fleet guard service team carried out site surveys to investigat­e the bulk-fuel storage system and on-board filtration. The bulk fuel was found to be cloudy and muddy, which meant it had not been delivered according to specificat­ion.

“We found that the fuel contained water and fungus,” Naude reveals. Fungus only propagates in fuel in the presence of free water, which therefore increases the likelihood of injector failures occurring.

Cummins Filtration inspected the mine’s on-engine filtration system. The engines, including the on-board filtration systems were also inspected.

“Part of our recommenda­tions were to fix the water contaminat­ion situation in the fuel. We contracted clean-fuel solutions provider SupaFuel as an independen­t party to verify that, in fact, water was present in the fuel, to put the correct maintenanc­e practices in place, and to manage the mine’s bulk fuel system. It also implemente­d the recommenda­tion from Fleetguard in terms of the mine’s on-board filtration systems.”

SupaFuel owner Chris Chow adds that it produced a report on the mine’s bulk fuel situation highlighti­ng that it contained water. Therefore, the water had to be removed to maintain the cleanlines­s standard of the bulk fuel and to ensure that the quality of the fuel was sufficient to be used in the engines without any subsequent damage.

Cummins Filtration upgraded the mine’s first-stage bulk fuel filtration system to a FH239 Series Industrial Pro which provides the best contaminan­t removal efficiency available at 99.9% efficiency.

It then installed a FF5782 fuel filter with an all-in-one fuel/water separator with NanoNet media. NanoNet provides a final-stage filtration solution using the same nanofibre media technology used in the Fleetguard NanoForce air filters. The nanofibres woven into the media help capture and retain contaminan­ts more efficientl­y, improving performanc­e by up to 13 times that of standard filters.

The FH239 Series Industrial Pro meets, and exceeds, original-equipment manufactur­er efficiency requiremen­ts, while the 67% increased media area ensures greater engine protection, providing for the highest level of fuel/water separation, and reducing flow restrictio­n by up to 9%.

Newspapers in English

Newspapers from Zambia