previousnext 5/8/2008

Powerful New Holland T8000 range gets another boost to its fuel economy performance. 

New Holland has introduced a new Ground Speed Management system to its high horsepower T8000 series range of tractors. The T8000 full powershift transmission will have a Ground Speed Management system that is normally only associated with a variable transmission.

Instead of engaging a conventional Auto Field or Auto Road mode (where gear shifts are mode based upon engine speed) the operator engages the Ground Speed Management control and the engine hand throttle function then changes to a speed lever; the foot throttle to a drive pedal. In its Field mode the speed lever can control the tractor’s speed from 1 kph up to 23kph.

The driver simply engages forward and then pushes the speed lever forward until they are at the desired speed. The tractor will automatically analyse the engine load and determine at what engine speed and in which gear to operate to maintain the set speed.

The major benefit for the operator is that the tractor will always try and achieve the set forward speed at the lowest engine throttle setting and the highest gear possible to reduce fuel consumption. As load increases the tractor will throttle up while the transmission shifts down. As load reduces, the engine will throttle back and the transmission will shift up.

To make life easier, a forward speed can be dialled in to the tractor’s ‘A’ pillar display. This makes it easier to return to a set speed after making a headland turn, for example. If the PTO is in operation the engine speed will not be allowed to fall below 1600 rpm, maintaining the PTO shaft speed to the implement.

In the Road Mode the speed variation changes from 1kph up to 50kph with the foot throttle acting as a very simple drive pedal; the further down it’s pressed the more the gear box up-shifts until 50kph is reached.

Models specifications

T8020              248               281                 47%  
T8030              273               307                 47%  
T8040              308               342                 42%  
T8050              325               358                 40%  




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