BELARUS-152
3/1523В
/1523.3
/1523В.3
Aggregating the Tractor
203
steerability criterion.
The actual values of the weights m
RT
;
m
F
; m
R
and m
Т
are to be determined by
weighing on a weighbridge or by any
other available method. To determine m
F
and m
R
, the tractor shall be placed on
the platform of special balance with its
front and rear wheels, in turn; while the
wheels of the other axle shall be on hard
surface level with the balance platform.
ATTENTION!
•
Load on the tractor front axle in an
aggregate with an agricultural ma-
chine should be at least 20% (0.2)
of the tractor own weight without
attached machine.
Otherwise, the
tractor will not demonstrate sufficient
steerability and longitudinal stability.
The indicator of the load adequacy is
a C
steer
factor (see Table 7-20) which
is a ratio between the front-wheel part
of the total t machine weight
and the operating weight of the tractor
without the machine.
•
If the front axle load is insufficient, in-
crease the tractor operating weight in
accordance with recommendations of
this Manual as regards the tractor
loading and ballasting. In all in-
stances, the total amount of loads
shall not exceed the total load-
carrying capacity of the tractor tyres
specified in table of loads on the tyres
(see Table 7-21)).
If the load values
obtained as the result of weighing,
calculations and additional ballast-
ing is greater than the permissible
values, the aggregating of such
machines/implements is forbidden.
The Expedient loading and stability can
be provided by following the recommen-
dation given below:
•
Following the recommendations of the
Operating Manual for the Tractor.
•
Using the recommended standard size
of the tyres only.
•
Inflating the tyres to the pressure val-
ues necessitated by the tractor axle
loads, jobs to be performed, and soil
and weather conditions. The recom-
mended tyre inflation pressures for the
tractors with due account of actual
loads can be found in Tyre Load-
Capacity Table (Table 7-21). The tyre
capacity decreases as the speed in-
creases and the inflation pressure in
tyres decreases.
•
Maintaining the adequate speed when
performing the field and transportation
works.
•
Combining the aggregating methods
(working with the front and rear hitch
linkages used at the same time) and
ballasting.
•
The total maximum weight of the trac-
tor which falls on the front and rear
wheels of the tractor should not ex-
ceed 9000 kg, with due observance of
allowable axle loads.
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