05/2003
G
v
T
v
T
H
G
H
a
b
d
c
6
Subject to technical modifications
Mounting heavy attachments
Important additional information for the
combination of tractor and attached implements
The attachment of implements to the front and
rear three point linkage must not result in the total
permitted weight, axle load or tyre capacity of the
tractor being exceeded. The front axle load of the
tractor must be at least 20% of the empty weight of
the tractor at all times.
You should ensure that these requirements have
been fulfilled before coupling the implement by
carrying out the following calculations or weighing
the tractor/equipment combination.
Determining the total weight, the axle loads and
the tyre capacity
as well as the required minimum ballasting.
The following data is required for the calculation:
T
L
(kg) Empty weight of tractor
T
V
(kg) Front axle load of empty tractor
T
H
(kg) Rear axle load of empty tractor
T
G
Total permitted weight of the
tractor
G
H
(kg) Total weight of rear attachment /
rear ballast
G
V
(kg) Total weight of front attachment /
front ballast
a(m) Distance between centre of gravity
of front attachment / front ballast and
centre of front axle
b(m) tractor wheelbase
c(m) distance between centre of rear
axle and centre of lower link ball
d(m) distance between centre of lower
link ball and rear attachment/ ballast
centre of gravity
1
See tractor operating instructions
2
See implement operating instructions and/or
determine the weight.
3
Measure
G
V
min
=
G
H
x
(c+d) - T
V
x
0.2
x
T
L
x
b
a + b
G
H
min
=
G
V
x
a - T
H
x
b + 0.45
x
T
L
x
b
b + c + d
Front attachment or front/rear combination
1) CALCULATION OF THE MINIMUM FRONT
BALLASTING G
V min
Enter the calculated minimum ballasting required in
the front of the tractor in the table.
Front attachment
2) CALCULATION OF THE MINIMUM REAR
BALLASTING G
H min
1
1
1
1
2
2
2
2 3
1 3
1 3
