DAF recently added a hydraulic front-wheel-drive option for its CF and XF 4x2 trucks with PACCAR MX-11 or MX-13 engines, with more compatible models to be added later this year. The result of a collaboration with Paul Nutzfahrzeuge, a conversion and custom vehicle specialist, the PXP (Paul Xtra Power) drive can be turned on at any time with via a dedicated switch, making it possible for trucks that typically travel on-road to perform better “off-road or in slippery conditions,” when necessary, according to DAF.
How It Works
With the PXP system, each wheel hub on the front axle of the truck features a hydraulic motor that produces at least 6,435 newton-metres of torque “at a maximum system pressure of 360 bar,” DAF explains. The motors are powered by a hydraulic pump connected to the engine power take-off, which the company says “saves both weight and space.” That same pump can also power other attachments, including cranes, skip loader equipment, and more, all with a single hydraulic tank.
When turned on, the PXP system can automatically detect when the vehicle is slipping and instantly provide more traction from the front wheels. It works when the truck is traveling in the first four gears at a speed of 20 kilometres or below as well as in first or second reverse gear. Outside of that range, PXP remains in standby mode until the truck reduces speed or the system registers a slip.