Equipped with a diesel particulate filter and diesel oxidation catalytic converter, the diesel forklift trucks can now be used in applications that were previously unavailable to them due to the lack of a diesel particulate filter. According to the manufacturer, the new 4-cylinder engine with common-rail fuel injection has other advantages over the previously used engines in addition to the more environmentally friendly technology. The V3800-CR-TE5B Kubota engine with fully electronic engine control is not only more environmentally friendly than its predecessor, but also scores points with an optimized torque curve and more economical operation. This should enable the operator to achieve greater efficiency when using the truck.

Low emissions and low fuel consumption
Kubota combines a diesel oxidation catalytic converter (DOC) with exhaust gas recirculation with a diesel particulate filter (DPF) to filter the exhaust gases. Thanks to the integrated exhaust gas aftertreatment with DOC and DPF, the Kubota engine meets the strict EU Stage 5 emission standards in accordance with Regulation (EU) 2016/1628. Compared to Stage 3b engines, the Kubota Stage 5 engine has further reduced the size of the soot particles and limited the number of particles emitted.

Furthermore, the Kubota Stage 5 engine is more economical in terms of fuel consumption than the diesel engine previously used. Thanks to the increase in efficiency, the operator achieves a five percent saving in fuel consumption. No AdBlue is required to operate the Kubota Stage 5 engine, only fuel with a sulphur content of less than 0.0015 percent (15 ppm).

The Kubota engine is also quiet in operation. To this end, the manufacturer has optimized the noise of the cooling system and revised the fan and air baffle in particular with regard to noise development. In addition, the cold start in the winter season has been improved thanks to preheating of the intake air.

Automatic regeneration of the DPF
If the truck is running in normal operation, the engine generates enough heat for regeneration to take place automatically without downtime during operation. A regeneration process with corresponding downtime is only necessary for light-duty applications and short operating times. The driver is then informed via the Clark driver display and visually guided through the regeneration process. If a regeneration process is necessary, it should be carried out without fail in order to prevent damage to the diesel particulate filter.

Clark offers the new Kubota diesel engines with options such as air conditioning, speed limiter and various exhaust variants. as