Daf revises steered pusher axle for improved efficiency

Daf has introduced a new Electric Hydraulic Steering (EHS) system on 6x2 tractor and rigid vehicles with a steered pusher axle.

It replaces the previous mechanical variant. The two steering arms and the auxiliary drop arm are replaced by an electronically-controlled steering pump unit, which results in a 30Kg weight reduction. There is also a 0.3% fuel efficiency gain.

The system is available across the new generation Daf truck range, including XD, XF, XG and XG⁺ models. Its components use less space on the chassis, allowing up to 40% larger fuel tanks on tractor models.

The newly developed EHS system continuously calculates the optimal steering angle for the steered pusher axle based on speed and wheelbase, guaranteeing precise steering. The turning circle of the tractor and rigid chassis models has been further reduced by 12%, resulting in optimal manoeuverability.

At speeds above 28mph, the new electric hydraulic steered pusher axle locks itself in the straight-ahead position.

Daf says the completely redesigned suspension, guide and lift of the new electric-hydraulicly steered pusher axle provide improved driver comfort.