- 21 -
O
PERATOR
'
S
MANUAL
KORMORAN SF 180 / SF HA 180
9901.00.07EN04SF - 02/2017
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4.2.2
Tyre spacing
2
2
1
1
Legend
1
Front tyre spacing
2
Rear tyre spacing
If the implement has a large number plough share pairs,
the wider the tractor's track, the better the tractor/implement
combination will perform.
To guide the tractor in the furrow, align the middle of the front
axle with the middle of the rear axle. You will thus avoid friction of
the front wheel on the ploughing face.
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The adjustment of the distance between tyres depends on the
working width of each body and the length of the offset arm.
On sloping ground, a large distance between tyres gives good
stability to the tractor/implement combination.
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-
min.: 1.30 m
-
max.: 1.60 m
4.3
Ballasting the tractor
The implements hitched to the front and rear of the tractor may
not exceed the total permissible load, the permissible axle loads
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It is essential that the tractor's front axle is able to support at
least 20% of the tractor's dead weight. If necessary, ballast your
tractor.
Before driving on the road, always make sure that the tractor is
not overloaded and that it is suitable for the hitched implement.
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IMPORTANT:
Weights are stated in kilograms (kg), lengths in
metres (m).
a
b
c
d
W
F
W
R
L
r
L
f
Legend
We Tractor dead weight
Lf Front lifting capacity of unladen tractor
Lr Rear lifting capacity of unladen tractor
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a
Distance between centre of gravity of front-mounted implement
and the front bearing axle
b Tractor
wheelbase
c
Distance from the centre of the rear axle to the centre of the
draw bar
d
Distance between the centre of the d raw bar and the centre of
gravity of the hitched implement
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Formulae and calculation method
ʈ
The method of calculation of the minimum front ballast for a
tool hitched to the rear: enter the result in the table.
ʈ
Method of calculating the minimum rear ballast for a heavy
tool hitched to the front: enter the result in the table.
ʈ
Description of load acting on the axle: enter the value for the
effective load on the front axle and the permissible weight
obtained from the tractor operator's manual.
ʈ
Calculate the total actual weight: enter enter the value for the
effective total weight and the permissible weight obtained from
the tractor operator's manual.
ʈ
Calculating the effective load on the rear axle: enter the value
for the effective load on the rear axle and the permissible load
on the rear axle obtained from the tractor operator's manual.
Actual
values
Permissible
values
Values
x2 the
permissible
capacity of
the tyres
Min. ballasting
Front/Rear
Kg
Total weight
Kg
Kg
Front lifting
capacity
Kg
Kg
Kg
Rear lifting
capacity
Kg
Kg
Kg
The results must be lower than or equal to the permissible
values.
