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Smart tiller

Clever use

It is a well-known fact that the slope quality is a decisive criteria when it comes to choosing a ski resort. In our last issue, we reported about it. Of course, a durable, ridable and safe slope depends on many uncontrollable factors like temperature, snow depth and snow quality. For obvious reasons, the dozer blade is indispensable for preparation but, to provide good slope quality, the correct use of a quality tiller is decisive.

Our larger PistenBully models, the PistenBully 400 and PistenBully 600 are equipped with the AlpineFlexTiller (AFT), a tiller more powerful than one might think. Correct usage, however, is essential. In the following, our experts provide useful advice on the most effective ways to operate an AlpineFlex Tiller.

Snow cover
Once it is closed it stays closed - and often times the cover is closed too early and too often. As a consequence, snow and ice pile up. Having too much snow in the tiller makes the diesel consumption increase. If the cover is left wide open, however, the slope quality will suffer. If the snow is soft, the cover must be open wide to enable a fast passing of the snow. In case of firm snow, it better be closed - the chunks of ice are tilled more intensely and after a few cycles in the tiller they are crushed and transported to the slope.
Our advice: Changing the cover settings several times a day will make a big difference!

SNOWtronic
SNOWtronic enables an automated and consistent tiller depth, especially when driving over hills. According to the setting, snow hills can be removed (0 %) or built up (100 %). With a medium setting of 40 - 60 %, a consistent tiller depth is maintained.
Our advice: An adapted driving speed helps a lot!

Vehicle and tiller calibration
To make sure that SNOWtronic works in a reliable and correct way, both the vehicle and tiller must be properly calibrated. The setting to the so called zero position is another important factor for a decent grooming result. The changing of the chassis or the weight by mounting or removing a cabin or winch also has an impact on the zero position of SNOWtronic. Its calibration is carried out on an even ground when the new vehicle is handed over and afterwards on an annual basis (or upon need) by a mechanic during revision.
Our advice: Correctly calibrate and recalibrate as changes are made to the equipment to optimize SNOWtronic capabilities.

Tiller depth
Whether SNOWtronic or not, when it comes to extreme slope conditions, 10 tons of vehicle and tiller react differently when driving up and down the hill. Gravity has a slight impact on the tiller depth.
Our advice: Especially for very difficult//hard slope conditions, it is recommended to adjust the tiller depth each time you go up and down the mountain according to the gradient. All it takes is just a little adjustment to get the perfect tiller and slope quality! A huge impact is guaranteed!

... and some more advice: Studies show that in the case of fresh snow, tilling is crucial. When tilled, snow crystals are crushed and air is sucked in. The snow becomes significantly more dense.

Timing
Another highly influential component of the grooming is choosing the right time, so that the snow can sinter; thereby, a higher density is achieved. However, this process needs time: To make sure a slope meets the needs of winter athletes the snow needs sintering time of approx. 8 hours. The right time for grooming depends on the snow quality, the expected amount of rain or snow fall and the night temperature.
Our advice: When there is fresh snow, it is recommended to only use low contact pressure of the tiller. The lower the contact pressure, the better the climbing ability of the machine.

Spot: Finisher structure
A proper, freshly groomed slope with its typical cord structure simply looks nice. This is a fact every skier can confirm. Comprehensive tests prove that the enlarged surface supports the sintering process when it has more contact with the cold night air. It provides the slope with more grip.

  Team

The experts of our “tiller team” f.l.t.r.: Alexander Dehm, Thomas Menz, Wolfgang Seibert, Andreas Häußler, Claudius Henger

  MultiFlexTiller

Much has happened in the development history of our tillers. At the beginning of the 2000s, the MultiFlexTiller with a mounted tube frame was state-of-the-art, whereas today, a high-tech tiller looks totally different!

  AlpineFlexTiller

With the development of the AlpineFlexTiller in 2007, an optimized finisher contour for good movement through the snow, a more consistent concentration and a better view on the shafts were provided.

 

No matter what the snow conditions may be, the AlpineFlexTiller always performs excellently. By means of the “windscreen wiper” system, its finishing outrigger ensures perfect alignment with the terrain.

  Side finisher

Optional hydraulically foldable side finishers prevent the creation of side embankments and ensure a perfect Transition in case of overlapping grooming.

 

The side finishers are easy to align using the adjustable hydraulic cylinder. When they reach a certain resistance, they flap aside.

 

Not long afterwards, the introduction of door kinematics at the side finisher facilitated the passing through narrow passages the finisher more compact.

  Protector unit

The large protector unit prevents snow from finding ist way onto the tiller or the finished parts of the slope. And the result is a perfectly groomed slope.

  Best tilling result

Ideal shafts are responsible for the snow preparation and for transport within the tiller box. A large tiller pump provides the AlpineFlexTiller with optimal rotational speed and perfect torque even in the most

 

difficult operating conditions. The powerful shock-absorbers guarantee an even contact pressure of the tiller.

  Easy servicing

Easily accessible hydraulic valves on top of the tiller make servicing easier and simplify retrofitting, e. g. of track setters.

 

The stable design of the shafts and the tiller teeth of high-strength fine-grain steel ensure lower wear and tear.
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