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MAN HydroDrive® – the efficient solution for increased traction

MAN HydroDrive® – the efficient solution for increased traction

MAN Nutzfahrzeuge was the first commercial vehicles manufacturer in the world to launch the selectable hydraulic front-axle drive on the market and has already sold over 5,500 vehicles. This is an intelligent supplement to the classic all-wheel drive in the MAN TGS and TGX ranges: the MAN HydroDrive® provides more traction and safety when driving on unpaved surfaces, on slopes and slippery roads. In these situations it provides secure traction, both forwards and in reverse. When you're driving downhill with the HydroDrive® engaged, the sustained-action brake also acts on the front axle to stabilize the vehicle. The MAN HydroDrive® can be engaged by merely turning a rotary switch, both while driving and under load – the driver can thus master gradients safely without having to stop. The system consists of an hydraulic pump flanged to the gearbox and wheel-hub motors on the front wheels. It is active up to a maximum speed of 28 km/h. At higher speeds it switches itself off automatically. If the speed drops again, it automatically reactivates itself. By comparison with a rear-wheel drive truck, a truck equipped with auxiliary HydroDrive® weighs only slightly more; by comparison with a classic all-wheel drive truck, several hundred kilograms less. HydroDrive ® vehicles can thus transport greater payloads. The design height remains unchanged, which means: ease of entry similar to that of an on-road chassis, lower height of the top frame edge and the overall vehicle, lower center of gravity and because of this, optimum driving stability. Similarly, the turning circle of MAN HydroDrive® vehicles is the same as for their rear-wheel drive counterparts. MAN TGS vehicles as roll-off and set-down skip loaders are often seen with the HydroDrive ® because once the container has been set down, the drive axle is only minimally loaded and loses some of its traction. In this regard, the MAN in conjunction with a steered trailing axle really makes its mark in terms of manoeuvrability, weight and traction.