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| New Litronic bulldozer from Liebherr  Liebherr has introduced new Series 4 bulldozer, the PR 744 Litronic. The engine capacity of the PR 744 Litronic is 184 kW, which is 7 % more than its predecessor and the operating weight has been increased to 28.2 tonnes. The machine is controlled by the new fourth-generation Litronic system. The features of this system include an integral operational data memory, which can be read out on the multifunction display. The new Litronic also matches the steering behaviour of the machine to the driving speed, which increases the working capacity when turning. The PR 744 Litronic automatically employs the counter-rotating tracks function if a particularly tight turn is made, thereby producing high manoeuvrability.Modern 'demand-controlled' hydraulics and the float position incorporated into the single-lever controller, as well as the fast-lowering function, ensure that the working equipment can be controlled quickly and precisely. The bulldozer's considerably longer tracks also make an imporant contribution to maximising working capacity. These enable more pulling force to be transmitted, and the machine runs more quietly. The PR 744 Litronic is fitted with the new Liebherr D 936 L diesel engine. With its electronic engine management system, the newly designed unit ensures that maximum torque is always available and, at the same time, the combustion process is controlled so that engine emissions are reduced. The PR 744 Litronic has enlarged driver's cab. The ergonomically optimised joysticks for drive and blade control, more generous space, extra storage, and an additional cool box container leave nothing to be desired when it comes to driver comfort. The new design provides all-round viewing of the working area and equipment. The interior trim in the cab has been improved. The combination of low engine speed and the demand-controlled hydrostatic fan means that the noise emissions have been reduced for quiet operation. write your comments about the article :: © 2006 Construction News :: home page |