Safety measures and precautions
22
3.9.3 Axle loads
The mounting of devices on the front and rear three-point linkage
must not cause the permitted gross weight, the permitted axle lo-
ads and the tyre load capacities of the tractor to be exceeded.
The front axle of the tractor must always be loaded with at least
20% of the tractor net weight.
Determining the minimum front ballasting and the increase in the rear axle
load:
GV = Weight of front ballast (front device)
TV = Front axle load of the tractor without mounted device
TL = Net weight of the tractor
TH = Rear axle load of the tractor without mounted device
GH = Device weight
Calculating the minimum front ballasting GV min:
Calculating the increase in the rear axle load:
Minimum increase in axle load
The calculation of the required minimum front ballasting and the increase in the
rear axle load assumes that all the aforementioned dimensions and weights are
known. If you do not know these dimensions and weights and you cannot deter-
mine them, there is only one reliable and precise method of avoiding overloads:
Weigh your tractor with the device mounted and lifted off to determine the
actual rear axle load and front axle load relief of the tractor with the device
mounted and lifted off in comparison with the front and rear axle loads of
the tractor without mounted device!
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