Belarus 1221.2, Руководство оператора

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BELARUS-1221.2/1221 В .2/1221.3 Operating controls and instruments
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2.3. To change the value of the blinking digit of the parameter, use the “Value”
(Значение) button;
2.4. To go to the more significant digit, press the “Parameter” (Параметр) button;
2.5. To exit the mode of programming an unfixed value of any parameter, press twice
the “Mode” (Режим) button;
2.6. On exiting the above mode, the digits of the entered value of the parameter be-
come lit steadily;
2.7. The newly entered value is set the last in the list of the parameter values allowed to
be programmed;
Entering the parameters to be programmed:
1. To display correctly the tractor motion speed, it is necessary to program in the speci-
fied order the following parameters:
Parameter “Z” is the number of pinions teeth of the final shafts of the driving wheels
(right and left), over which the (rotational) speed sensors are installed;
Select from the Table:
Number of teeth (Z) Tractor model
54 (56)*
Belarus-1221 and modifications
* With driven gear 1522-2407122
Parameter “I” is the multiplying factor of the gear rate of the wheel reduction gear;
Select from the Table
Gear ratio of the wheel reduction
gear (I)
Tractor model
3,43 Belarus-1221 and modifications
Parameter «R»
R is the rear wheel rolling radius (mm);
Select from the Table
Tyre mark 18,4R38