Stability Of Planting Unit And Tractor During Transport; Transport On Road - GASPARDO MAGICA Empleo Y Mantenimiento

4.5 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. 12 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 between
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
equipment 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.
Z T
0,2 T
i
d
cod. G19503321
USE AND MAINTENANCE
(d+i)
s1 s2
s2 = 800 mm (MAGICA)
s2 = 1000 mm (MAGA)
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4.6 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 (14, 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 dangerous
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»,
meaning 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 comply 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..
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
fi g. 12
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.
The tractor used for transporting the equipment must have the powers
shown in the Technical Data table; if necessary, redistribute the total
weights with the addition of ballasts to return balance and stability to
the whole assembly (page 55).
For displacements beyond the work area, the equipment must be placed
in the transportation position:
- Lift and hook up the seeding elements (see Chap. 5.5.5).
- Where provided for, make all the moving parts come within the transport width,
locking them with the safety devices (toolbars, row marker arms, row marker
discs, etc.).
- Road movements must be performed with all tanks empty.
- Any transport accessories must be provided with suitable signs and guards.
Upon request the Manufacturer will supply supports and tables for
signaling of dimensions.
ENGLISH
CAUTION
DANGER
ATTENTION
EN - 55