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MAN HydroDrive®

MAN HydroDrive®

MAN traction vehicles with HydroDrive®

More traction? At the turn of a switch.
The going is tough in the transport business these days. But if you operate on unconsolidated and slippery ground in gravel pits, at building sites or on forest and field tracks, MAN HydroDrive® gives you better traction, more flexibility and greater safety.
The MAN traction vehicles with HydroDrive®.

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Ultimately, all haulage companies are concerned about is arriving safely and on time, even if the road conditions are less than ideal. Between the conventional rear-axle drive and classic all-wheel drive, the innovative MAN HydroDrive® provides more traction for road vehicles that occasionally need to travel off-road. When compared with a vehicle with conventional all-wheel drive, the HydroDrive® system is up to 400 kilograms lighter and uses less fuel. In addition, a powered front axle also provides lateral guidance – an important safety aspect to consider in winter.

More traction instantly

MAN HydroDrive® is the perfect drive for applications with occasional off-road sections and situations where increased traction at the front axle is required. Vehicles with MAN HydroDrive® are essentially road vehicles that are equipped with hydrostatic front-axle drive to extend their scope of use in terms of available functions.

Examples of typical driving situations where MAN HydroDrive® can be switched on are:

  • Unsurfaced roads, such as country lanes and road works
  • Slippery subsurfaces, such as sludge, ice and snow
  • Route profiles with hilly topography

MAN HydroDrive® indicator

MAN HydroDrive® indicator in the central display

Rotary switch for MAN HydroDrive®

Rotary switch for MAN HydroDrive®

MAN HydroDrive®

The hydrostatic front-axle drive can also be switched on using the rotary switch when the loaded vehicle is in motion. It switches off automatically when the vehicle reaches a driving speed of approximately 30 km/h. If the speed drops below 22 km/h, it is automatically switched back on. When the MAN HydroDrive® is active, an indicator lamp lights up in the driver's display.

With MAN HydroDrive®, a hydropump on the gearbox output supplies the wheel hub drives on the front axle. This ingenious yet simple, robust and maintenance-friendly technology is comparable with the conventional rear-axle drive in terms of fuel consumption and wear, and offers a range of advantages over the classic all-wheel drive. The distributor gearbox, a typical feature of the classic all-wheel drive, is no longer required where hydrostatic wheel drives are used. In addition, with MAN HydroDrive®, only the rear wheels are powered in road traffic, and no friction is produced by the hydropumps or wheel motors. In contrast, with the all-wheel drive, the transmission elements of the front-axle drive continue to turn, even when they are switched off.

The advantages of the MAN HydroDrive®:

  • More favourable fuel consumption
  • Weight or payload advantage of roughly 400 kg when compared to the classic all-wheel drive
  • A high model is not required; the silhouette and centre of gravity of the road vehicle are retained
  • Greater driving safety thanks to improved traction and directional stability on unsurfaced roads and in wintry road conditions
  • Transfer of engine braking action to the front axle during coasting which leads to improved distribution of braking forces

The MAN vehicles at a glance