Axle load calculation
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5
5 Axle load calculation
You will need the following data for the calculation:
[1] See operator’s manual of the tractor
[2] See price list and/or operator’s manual of the unit
[3] To be measured
n CAUTION
Risk of overload
Mounted units on the front or rear three-point linkage must not
cause the approved total weight to be exceeded. The front axle of
the tractor must be loaded with a minimum weight of 20 % of the
empty weight of the tractor at all times.
Before using the machine, ensure that these conditions are
met.
Implement the following calculations or weigh the tractor-
machine combination.
Calculation of total weight, axle
loads and tyre load capacity as
well as of the required minimum
ballast weights.
Figure 5.1: Loads and weights
Charac-
ter [unit]
Meaning Calculation by
(table footer)
T
L
[kg] Empty weight of the tractor [1]
T
V
[kg] Front axle load of the empty tractor [1]
T
H
[kg] Rear axle load of the empty tractor [1]
G
V
[kg] Total weight of front-mounted unit/front ballast [2]
G
H
[kg] Total weight of rear-mounted unit/rear ballast [2]
a [m] Distance between centre of gravity of front-mounted
unit / front ballast and centre of front axle
[2], [3]
b [m] Wheel base of the tractor [1], [3]
c [m] Distance between centre of rear axle and centre of
lower link ball
[1], [3]
d [m] Distance between centre of lower link ball and cen-
tre of gravity of rear-mounted unit / rear ballast
[2]
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