Stability Of Planting Unit And Tractor During Transport; Transport - Gaspardo ALITALIA Emploi Et Entretien

4.2 STABILITY OF PLANTING UNIT AND TRACTOR
DURING TRANSPORT
When a planting unit is coupled to a tractor, so becoming an integral
part of it for the purposes of road travel, the stability of the planting
unit-tractor complex may change and cause driving or operating
diffi culties (rearing up or side-slipping of the tractor). The condition
of equilibrium can be restored by placing a suffi cient number of
ballasts on the front of the tractor so that the weights on the two
tractor axles are distributed suffi ciently evenly.
To work in safety the instructions given in the highway code should
be followed; these prescribe that at least 20% of the weight of
the tractor alone should be borne by the front axle and that the
weight on the arms of the hoist should not be more than 30% of
the weight of the tractor itself. These factors are summarized in
the following formulas:
Z > [M x (s1+s2)]-(0.2 x T x i)
The symbols have the following meanings (please see Fig. 20 for
reference):
M (Kg) Mass weighing on arms off hoist with full load (weight +
mass, see cap. 1.3 Identifi cation).
T (Kg) Mass of tractor.
Z (Kg) Total mass of ballast.
i
(m) Tractor wheelbase, that is, the horizontal distance betwe-
en the tractor axles.
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 inferior point of attach-
ment of the equipment and the posterior axle of the tractor
(equipment supported to the ground).
s2 (m) Horizontal distance between the barycentre of the equip-
ment and the inferior point of attachment of the equipment
(equipment supported to the ground).
The amount of ballast that should be applied according to the
formula is the minimum required for circulation on the road. If for
reasons of tractor performance or to improve the set-up of the
planting unit during operation it is thought necessary to raise these
values, please refer to the registration document of the tractor to
check its limits.
When the formula for calculating the ballast gives a negative result
it will not be necessary to add any weight. In any case, as long as
the limits of the tractor are respected, a suitable quantity of weights
may be applied in order to ensure greater stability during travel.
Check that the tractor tyres are suitable for the load.
s2 = 85 cm
cod. G19503391
USE AND MAINTENANCE
(d+i)
fi g. 20


4.3 TRANSPORT

If it becomes necessary to transport the machine for a long distance,
it can be loaded onto a railway wagon or a truck. For this purpose,
consult «Technical Data» for weight and specifi c dimensions. The
latter are very useful to check the possibility of driving along all
types of roads.
The machine is generally supplied in a horizontal position with no
packing material.
It is therefore necessary to use a system of hoisting with a crane and
cables, or chains of adequate capacity, hooking onto the machine
at the hoisting points marked with the «hook» symbol (13, Fig. 2).
Before proceeding to the hoisting op- erations, make sure that
any any mo- bile elements of the machine are blocked. Make
sure to use a crane with an adequate hoisting capacity to lift
the machine. Hoist the machine with extreme caution and
transfer it slowly, without jerks or abrupt movements.
The operations of hoisting and trans- port can be very dange-
rous if not carried out with the maximum caution; persons not
directly involved should be moved away. Clean, evacuate the
area and delimit the transfer zone. Check the state, condition
and suit- ability of the means at disposition. Do not touch
suspended loads, keep- ing them at a safe distance.
It most be further ascertained that the operational area is free
of obstacles and that there is suffi cient «escape space», me-
aning an area which is free and secure into which one could
move rapidly in case a load should fall. The surface on which
the machine is to be loaded must be horizontal in or- der to
prevent possible shifting.
Once the machine is positioned on the vehicle, make sure that it
remains blocked in its position. Fasten the machine on the platform
of the vehicle by means of cables suitable for the mass which must
be blocked (see «Technical Data» for the weight).
The cables must be fi rmly fastened to the machine and pulled taut
to the anchorage point on the platform. Once transport has been
carried out and before freeing the machine from all its fastenings,
make sure that its state and position are such as not to constitute
danger. Remove the cables and proceed to unloading with the
same means and methods used for loading.
Transit and transporting on the public highways
When driving on the public roads, fi t on the rear refl ector triangles,
side lights and fl ashing beacon and always make sure that you com-
ply with the Highway Code and any other applicable regulations.
Make sure that the machine dimensions during transfer phases
allow for safe transport when travelling in subways, along narrow
roads, near electrical lines, etc..
ATTENTION
The seed-drill must only be transported by road with the tanks
and hoppers empty and at max speed of 25 km/h.
Before driving on to the public roads with the machine hitched
to the tractor, make sure that the devices listed above and/or
the slow vehicle signal and/or the projecting load signal op-
erate correctly. These indicators must be affi xed to the rear
of the implement in a position where they can be clearly seen
by any other vehicle that drives up behind.
ENGLISH
CAUTION
DANGER
EN - 61