82.3-0000010 OM
138
You should disable the PTO in the following cases:
- after the tractor has been stopped, but only after the machine attached has com-
pleted a full duty cycle;
- in turns, when the machine is lifted to the transport position;
- as you approach a steep slope.
Do not enable the PTO in the following cases:
- when the tractor engine is turned off;
- the machine attached to the tractor is in transport position;
- when the working attachments of the machine are sunken into soil;
- if there is process material on the machine working attachments or if the working
attachments are clogged or stuck;
- if there is a considerable slope angle (bend angle) in any plane of machine’s car-
dan shaft joint.
As you work with rotation tilling machines having active working attachments, com-
ply with the following additional guidelines:
- do not enable the PTO when the machine is grounded. The PTO should only be
enabled when the ready-to operate machine is put down with the working attachments
staying off the ground with a clearance making not less than 20…35 mm;
- putting the machine down with working attachments rotating shall be carried out in
a smooth manner as the tractor is moving forward;
- prevent the tractor from moving in the direction not corresponding to the machine
working travel during operation, when the working attachments are sunken into soil, either
with the PTO engaged and disengaged;
- during operation on hard soils, first carry out processing of cross strips for moving
in field enclosure, and then the lengthwise tillage can be started;
- it is recommended to work at minimum processing depth, required for a specific
crop. It is necessary for load reduction on the tractor PTO and reduction of fuel consump-
tion during the tractor operation. It is particularly is important to take this into account when
the tractor operates with multiple-purpose till-plant units.
4.10 Ways of changing of gripping properties and passing ability of the tractor
4.10.1 General information
Tractors BELARUS-82.3 perform the majority of technological processes in agricul-
tural production in motion by way of direct towing machines and implements by means of
pneumatic wheel tires’ grip with ground area. Tractive force developed at wheel rim is linear-
ly proportional to the tractor adhesive weight. That is why under certain conditions tractor
tractive performance increases with the increase of tractor’s operating weight.
Tractors BELARUS-82.3 are designed for operation with certain values of weight
loads on tractor framework and undercarriage. Fulfillment of recommendations for addi-
tional ballasting depending on operating conditions ensures the possibility of safe and
proper operation without critical tractor overloads for at least the specified service life.
The limit of increase in the adhesive weight is, in fact, the permissible load on the
tires, which depends on the tire size and internal pressure. In this case, the manufacturer
establishes the permissible maximum loads on the rear axle and the front axle of the trac-
tor at the maximum travel speed in transport mode.
Note - Air pressure rates for the front and rear tires of the BELARUS-82.3 tractors
with the current load and speed are given in subsection 3.2.8 “Selection of optimal inner
pressure in tires depending on operational conditions and load on tractor axles, instructions for
use of tires
.”
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