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Mise en route / Start-up / Inbetriebsetzung
E
T
RACTOR CONTROL
- To be checked :
• The total authorised weight.
• The permitted weight per axle.
• The authorised support weight on the tractor's linkage.
• The permissible load capacity for the tyres fi tted to the tractor.
• Is the authorised linkage weight suffi cient?
Figures that you should know
P
(kg)
P1
(kg)
Front axle load when the tractor is empty
P2
(kg)
Rear axle load when the tractor is empty
M1 (kg)
Total weight of front ballast
M2 (kg)
Weight of the rotary harrow or of the tool
M3 (kg)
Distance between the centre of gravity
a
(m)
of the front ballast and the centre of the front axle
b
(m)
Distance between the lower linkage pins
c
(m)
and the centre of the rear axle.
Distance between the lower linkage pins
d
(m)
and the centre of gravity of the machine.
d2
(m)
Distance of the centre of gravity from the rotary harrow
d3
(m)
Distance of the centre of gravity of drill + seed
M1 mini = Calculation of the minimum ballast need in front.
P1c = Calculation of the weight on the front axle
Pc = Calculation of the total weight of the unit (tractor + machine)
P2c = Calculation of the weight on the rear axle
Values calculated
P1c
P2c
Pc
- Complete the table below:
- Check that:
• The values calculated should be < or = to the tractor's permissible values and the values for the tyres fi tted to the tractor.
• It is essential that the minimum load on the front axle is > or = to 20% of the unladen tractor weight.
The machine must not be hitched to a tractor if:
The total weight calculated is > than the maximum authorised weight.
The weight on the front axle is < than the minimum required.
The weight on the tractor's front axle should be at least 20% of the unladen weight of the tractor.
Unladen weight of tractor
Weight of the drill + seed
Wheelbase of tractor
Tractor's permissible values
Consult the tractor's instruction manual
or the registration documents.
Consult the technical characteristics
of the tractor and the front ballast, or measure.
Consult the technical characteristics
of the rotary harrow or of the tool
Consult the machine's technical characteristics.
(see section
5
"Characteristics").
Consult the technical characteristics
of the tractor and the front ballast, or measure.
Consult the instruction manual
or the tractor's registration documents, or measure.
Consult the machine's technical characteristics.
5
(see section
"Characteristics").
Values permissible with the tyres
that are fi tted to the tractor
2
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