The TwinTrac reverse-drive controls available on Valtra’s S Series allow the tractor to be driven in reverse just as easily as forward operation. The combination of excellent visibility and advanced controls, most concentrated on the armrest, offers ideal ergonomics for reverse driving.
Many implements benefit greatly from the higher level of manoeuvrability of the S Series when operated in reverse. Wide mowers and forest mulchers are typical examples of implements that can be utilised in this way – with improved efficiency compared to normal driving.
To facilitate reverse driving, a second steering wheel is located in the rear of the cab, along with the shuttle lever and pedals similar to the front. The steering column is adjustable in all directions, also sideways. Turning the seat to the rear automatically switches the rear steering and transmission controls to the right driving direction. The multifunction Valtra ARM armrest naturally turns with the seat.
Reverse driving is a well known Valtra feature. In the new S Series the system utilises a new type of orbitrol valve. The new valve responds to electronic commands, so there is no need for a separate steering valve or hydraulic pipe works on the rear side of the tractor cab. The steering commands are read by sensors and sent via Canbus to the steering valve.
The same technology also enables steering controlled by the AutoGuide2 satellite navigation system, as well as Quick steering, which allows the reaction speed between turning the wheel and actual steering to be adjusted. Quick steering and readiness for AutoGuide2 are standard features on the new Valtra S Series range of tractors.
The new electronic steering makes the reverse-drive controls ergonomic and adjustable. The steering wheel can be adjusted both up and down and sideways, which makes it possible to fit different implement controls.
Reverse-drive equipment is widely used on Valtra tractors. A high power PTO, all hydraulics and heavy-duty power lift are available when implements are fitted to the rear. Visibility to the implement and work area is excellent, so the work can be done efficiently with less stress on the driver. Mowing with wide mowers, forage harvesting, special cultivation and all forest work are typical tasks that can be performed more effectively with reverse-drive or that cannot be performed at all with traditional forward driving.
All the driver needs to do to use reverse-drive equipment is to turn the driver’s seat. The TwinTrac reverse-drive system can be ordered as a factory fitted option, which guarantees the same high levels of safety as the other tractor functions.
For more information visit: www.valtra.com.
