OWNER'S MANUAL OF PNEUMATIC FERTILIZER
SPREADER ASF
Old Cod.Q00A00140
New Cod. -
INSTALLATION
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4.9. CHECK OF THE TRACTOR STABILITY AND ITS LIFTING POWER
When an implement is hitched to a tractor and, as far as circulating on public roads is concerned, it
becomes an integral part of it, it can alter its stability and make it difficult to drive it and to work.
When you add a machine to the tractor, you will change the weight distribution over the axles. It is therefore
recommended to add suitable ballast to the front of the tractor, so as to distribute adequately the weight over the
axles.
Calculate the ballast to be used with the following formula:
M x s < 0,2 T x i + Z ( d + i )
( M x s ) – ( 0,2 T x i )
Z >
-----------------------------------------------------------
( d + i )
CALCULATING TRACTOR STABILITY.
were:
i = inter-axle (m) of the tractor wheel
d = distance between the front axle and the front ballast (m)
s = projection of the implement from the rear axle (m)
T = tractor mass (kg)
Z = ballast mass + hopper with seeds (Kg)
M = implement mass (Kg)
At least 20% of the total tractor-implement mass
must weigh on the front bridge of the tractor. It
should be remembered, however, that stability can
be improved with the right choice of
tractorimplement combination and with the
application of ballast to the front, in the limits and
methods indicated by the tractor manufacturer.
Moreover, when the tractor is stopped, the machine
must be lowered to the ground, thereby improving
stability.
Tractor wheel base
i =……………… m
Distance between the front
axle and the front ballast
d =………………m
Projection of the implement
from the rear axle
s =………….. ….m
Tractor mass
T =………………Kg
Ballast mass
Z =………………Kg
Implement mass
M =……………...Kg