| 摘要 |
Poor carriageway contact when the carriageway surface is icy or slippery with snow leads to increased risk of skidding when braking, accelerating and cornering both with summer and winter tyres. Speedy starting at junctions is also not possible under such conditions. In the preconditions described in point 1, with the aid of a compressor - which is switched on by an additional switch on the dashboard - the gritting unit can be used to blow quartz sand from a supply container via a hose system onto the carriageway in front of the wheels. Contact with the carriageway is substantially improved. The unit can also be used as a traction aid. As has been demonstrated in testing, some of the dry quartz sand remains stuck to the moist tyres and as a result increases its frictional effect. All motor vehicles. In the case of front-wheel drive for the two front wheels, in the case of rear-wheel drive on all four wheels.
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