Ferrari Costruzioni Meccaniche GREENCAM TSA-40, Инструкция по эксплуатации и техническому обслуживанию

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OPERATING INSTRUCTIONS AND MAINTENANCE 2020
Pagina 14 di 80
3.4 TRACTOR TRAFFIC WITH ROAD MACHINERY
3.4.0 STABILITY OF THE TRACTOR-MACHINE ASSEMBLY
When the mower is applied to the tractor, it becomes, for road
traffic purposes, an integral part of the
same tractor, the stability of which may vary causing difficulties
in driving or working (wheelie or skidding of the tractor).
The equilibrium condition may be restored by placing a
sufficient number of ballasts at the front of the
tractor in such a way that the weights on the two axles of the
tractor are distributed in a sufficiently
equitable manner.
In order to operate safely, it is necessary to comply with the
road code which requires that at least 20 % of
the weight of the tractor alone must be borne by the front axle
and that the mass on the lifting arms must
not exceed 30 % of the weight of the tractor itself.
These considerations are summarized in the following formula:
The symbols have the following meaning (for reference see
Fig.8):
M ( Kg) Full load mass on the lifting arms (Weeding weight).
T ( Kg) Mass of tractor.
Z ( Kg) Total ballast mass.
i (m) Tractor wheelbase, which is the horizontal distance
between the axles of the tractor.
d (m) Horizontal distance between the centre of gravity of the
ballast and the front axle of the tractor.
s1 (m) Horizontal distance between the lower attachment
point of the operating machine and the rear axle of the tractor
(supported operating machine standing on the ground).
s2 (m) Horizontal distance between the centre of gravity of the
operating machine and the lower attachment point of the
operating machine (ground-supported operating machine).
Fig. 8:
Stability of the tractor-machine assembly
The amount of ballast to be applied according to the formula is
to be considered as the minimum necessary for road traffic.
If, for reasons of tractor performance or to improve the
alignment of the machine being worked, it is considered
necessary to increase this value, consult the tractor’s booklet
to verify its limits.
Where the ballast calculation formula gives a negative result,
no additional weight shall be applied. In any case, always
within the limits of the tractor, in order to ensure greater
stability while driving it is possible to apply a fair amount of
weights. Check that the characteristics of the tractor tyres are
adequate for the load.
The amount of ballast to be applied according to the formula is
to be considered as the minimum necessary for road traffic.
If, for reasons of tractor performance or to improve the
alignment of the machine being worked, it is considered
necessary to increas
e this value, consult the tractor’s booklet
to verify its limits.
Where the ballast calculation formula gives a negative result,
no additional weight shall be applied. In any case, always
within the limits of the tractor, in order to ensure greater
stability while driving it is possible to apply a fair amount of
weights. Check that the characteristics of the tractor tyres are
adequate for the load.
3.4.1 ROAD TRAFFIC
For the transport of the complete equipment, in particular if it
is carried out by road, the requirements of the road code must
be well taken into account.
Article 104 of the Road Code, entitled 'Silhouettes and Limit
Masses of Agricultural Machinery', shall read as follows:
Agricultural tractors for road use with worn or semi-worn
equipment such as the Greencam shall meet the following
main requirements:
•
The rear overhang, intended as the distance between the
end of the tool and the centre of the rear tyres, shall not
exceed 90% of the length of the non-weighted tractor; in
the case of a simultaneous front overhang, the overall
length of the whole, given by the combination of the two
overhangs and the wheel base of the tractor, shall not
exceed twice that of the non-ballasted tractor.
•
The lateral projection of the gear shall not exceed 1,60
metres from the longitudinal vertical median plane of the
tractor.
•
Tri-directional locking of the attachment supports of the
tool carried (third point and lifting arms) is required to
prevent any oscillation of the same with respect to the
tractor during transport.
•
Maximum width of tractor inclusive the gear worn must
not exceed 2,55 metres in which the projections due to the
rear-view mirrors are not included, provided that they are
movable.
If the tractor and the gear carried have outlines and masses in
excess of the above and shown on the road code, they shall
be considered as exceptional agricultural machinery and shall
be authorized for use on the road for one year and be
renewable, issued by compartment A.N.A.S. of departure for
the state road sand the region of departure for the remaining
road network.