from the control unit of the range reduction gear (if provided). This parameter is displayed
on the information field “1”. If the control units are absent or not connected or in case of
wire breakage, the letter “A” is displayed in the information field “1”.
The information field “2” displays the following parameters:
1. Total astronomic time of running the engine in hours.
The counter accumulates the information on the total engine running time and saves the
same on switching off the power supply.
The reading range is from 0 to 99999 hours of the engine running.
2. PTO rotational speed:
In this mode, the PTO rotational speed is displayed in the digital form depending on the
signal from the PTO rotational speed sensor.
The mode is active if the tractor is equipped with the PTO rotational speed sensor.
3. Volume of the fuel remaining (if the frequency fuel volume sensor FFVS is provided):
In this mode, the current volume of fuel in the tank (in litres) is displayed.
Attention! This mode is only available on the stopped tractor in the absence of signals
from the speed sensors.
NOTE. To switch over between the indication modes “Total astronomic time of running
the engine”, “PTO rotational speed”, “Volume of the fuel remaining” and fault messag-
es, press the “Mode” button of the control panel.
Operating principles of the pilot lamps
HG1 is the indicator of the overvoltage in the on-board power supply system:
It lights up when the voltage of the on-board power supply system of the tractor exceeds
19 V and goes out when the power supply voltage level drops down to 17 V;
In this case the CI is fully de-energized and restores its serviceability when the voltage
drops down to the rated value.
HG2 is the indicator of the parking brake application:
The “Parking brake” (Стояночный тормоз) indicator starts blinking on operation of the
parking brake switch;
HG3, HG4 is the indicator of switching on the turn indicators of the tractor and trailer:
It blinks when the right or the left turn indicator is switched on by the steering-wheel-
mounted multifunction switch.
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