'De-tiering' offers Bell customers greater re-sale flexibility
Global ADT specialist, Bell Equipment, has introduced another value-add to their customers with the advent of "de-tiering" - the process whereby Stage 3B and Interim Tier 4 engines fitted in Bell ADTs for emissions-regulated markets can be made suitable for sale as pre-owned machines in less regulated markets.
Bell Equipment Product Marketing Manager: ADTs, Tristan du Pisanie, explains the need for de-tiering: "Before the introduction of Stage 3B in Europe and Interim Tier 4 in the USA, the earthmoving industry in these countries had evolved into a fairly well established pattern. A significant percentage of new machines sold in these countries are exported out of the country at the end of their 'first life' and sold as pre-owned machines in countries with lower emissions regulations for off-highway equipment. This pattern faced a challenge because Interim Tier 4 engines reduce the allowable torque that they produce if they have any emissions related problems in a legally specified process termed 'inducement'. European Stage 3B engines are not subject to Inducement but they will produce fault codes and warnings if they do not have AdBlue / Diesel Exhaust Fluid filled."
The company has been manufacturing their ADTs with Stage 3b engines since 2011 and with Interim Tier 4 engines since 2013 and has collaborated with its long-standing engine supplier, Mercedes Benz and MTU, to be able to offer customers the de-tiering solution.
Continues Tristan: "De-tiering can be applied to the engine once the machine has left an emission-regulated country and effectively stops any fault codes being produced if no AdBlue / DEF is filled. It will also stop an Interim Tier 4 engine from going into inducement. By offering our customers the ability to de-tier, we are helping our customers to be able sell their machines into all of the pre-owned markets that have traditionally been available to them."
Tristan adds that Bell is able to offer ultimate flexibility to customers who choose to de-tier their Interim Tier 4 and Stage 3B engines by taking into consideration the disparity in sulphur levels between regulated and less regulated countries.
"Diesel in emission-regulated countries has extremely low sulphur levels because meeting emission levels requires this. However, many of the other countries in the world sell diesel with significantly higher levels of sulphur. If a customer's ADT is being sold into a country which has diesel with a sulphur content of 500ppm or less, then the truck only requires a software update and the associated paperwork.
"For those countries where diesel has sulphur content higher than 500 ppm then the software needs to be updated with the associated paperwork. In addition the catalyst needs to be replaced with a conventional silencer and the engine service intervals need to be reduced."
According to Tristan, reduced service intervals is standard on all Mercedes Benz / MTU engines for diesel with sulphur content higher than 500 ppm and not specific to these engines.
World Sulphur map courtesy of the United Nations Environment Programme (UNEP). For more information visit www.unep.org/Transport