1 WHY VOITH RETARDER?
2 FUNCTION AND INSTALLATION
The rotor driven by the Cardan shaft accelerates the movement of the oil, which is slowed by the stator.
Due to spinning oil, the rotor rotation is slowed down, thus reducing vehicle speed. The heat produced by this process is dissipated via the vehicle’s cooling system.
Installed to the gearbox, Cardan shaft unaltered, additional power take-off unit, free access, independent oil supply.
Mounted on gearbox, independent oil supply, ideally prepared for additional installation.
3a RETARDER OPERATION
The retarder can be easily and comfortably operated by a lever next to the steering wheel or by a pedal.
In the current generation of vehicles, the retarder is usually installed in the brake management.
3b RETARDER ACTIVATION
Retarder control is adjusted to vehicle specifications. The lever must be moved gradually!!
Retarder activation lever.
Retarder control indicator.
Retarder functions are shown on the vehicle display.
Information for retarder operation and retard function display are described in detail in the vehicle manual.
3c RETARDER ACTIVATION – FUNCTION V = CONSTANT
Speed is adjusted with the retarder.
Activation V = constant at the desired speed causes the retarder to stay in the highest braking torque range at the constant speed of vehicle.
Deactivation of function V = constant, deletes the speed entry from memory.
4 CORRECT USE OF RETARDER
Retarder’s capabilities are fully employed if you abide by the following:
- increased operation of the water pump
- increased fan rpm
- increased crank shaft rpm
- increased braking power of the retarder
Fuel consumption is not increased due to higher rpm, as the injection device is not supplying fuel to the engine at that time.
5 DRIVING SITUATIONS
Braking while driving down a slope
- shift into lower gear, thus achieving higher engine rpm
- adjust driving speed down a slope with the retarder
- via the retarder, select v = const. or braking level
Adjusting braking while driving
Adjust the speed with the retarder.
Reduce the speed with the retarder and stop the vehicle with the service brake.
6 DRIVING DURING DANGEROUS DRIVING CONDITIONS
During unfavourable driving conditions, the retarder has to be activated carefully and in stages.
Slippery road hazard
DO NOT activate the retarder during hazardous situations. This safety instruction is especially important with vehicles without ABS.
Rain, possibility of aquaplaning
When ABS activates, retarder automatically deactivates. After ABS deactivates, the retarder is once again functional.
PLEASE COMPLY WITH INSTRUCTIONS FOR THE PROPER USE OF THE RETARDER, AS YOU WILL THIS SAVE ON DRIVING TIME, WEAR AND TEAR OF THE VEHICLE, AND, ABOVE ALL, YOU WILL EXPEND LESS EFFORT DRIVING!