HAPERT COBALT HB, Руководство пользователя

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Wagenbouw HAPERT
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Ball thrust:
The ball thrust is one of the most important criteria for the road handling of the trailer
and, therefore, the entire vehicle combination.
The maximum permitted ball thrust (see the specifications of your tow bar or vehicle
and the type plate on your trailer) may not be exceeded. The ball thrust can be
increased or reduced by moving the load further forwards or backwards, respectively.
The optimal ball thrust is close to the maximum ball thrust. A negative ball thrust (i.e. an
upwards force applied to the tow bar) is strictly forbidden.
Carelessly loading the trailer may result in a risk of slipping or swerving. Adjust your
speed to the condition of the road surface and the load. This is particularly important in
corners.
Make sure the wheels do not wobble and the tyres are balanced.
Coupling height (with regard to the towing vehicle):
Another important element which influences the vehicle combination’s road handling
(particularly for tandem trailers) is the height of the coupling. The trailer’s coupling
height and that of the towing vehicle must not differ by too much. The vehicle
combination’s road handling is influenced by the difference in coupling height. A
dangerous situation may arise if the towing vehicle’s coupling height is considerably
lower than that of the trailer, because this results in a negative ball thrust.
Figure 9
Figure 8