DRIVING IMPRESSION For the coming season a new generation of Lexion combines will be taking to the fields with more powerful Stage IV engines, larger grain tanks, an improved chaff and straw spreader as well as 4D cleaning. We tucked the Lexion 780TT into a crop of wheat to see if the new cleaning system can conjure harvesting gains
Suggesting the latest generation of Lexion models are a new dimension may be over-egging the pudding, but still the various tweaks to the Lexion family are more than just a re-jig to meet tighter exhaust emission regulations.
Before we get stuck into the threshing improvement detail, let’s have a look at the new engines. Providing the grunt in the Lexion 780 is a Mercedes-Benz OM 473, which produces 626hp (to ECE R120). Not only are there an extra 42 horses over the predecessor’s, but it’s the stamina of the new motor that makes such a difference over what was there before. Even in a worst case scenario, this Merc motor can deploy an awesome 1,800Nm of torque to keep things moving. To meet Stage IV, the six-pot, 15.6-litre lump ramps up the pressure in the common rail to 2,300 bar, as well as incorporating the usual suspects of SCR and EGR. This leads us on nicely to Claas’s claimed 5% reduction in fuel and AdBlue use. On top of this the twin-wall shield on the exhaust stack is made from stainless steel, which is reckoned to reduce the temperature in this area by 50%
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