Belarus 1523, Operating Manual

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BELARUS-1523/1523 В /1523.3 /1523В.3 Construction and Operation
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• audible signalling (buzzer) of emer-
gency conditions: emergency oil pres-
sure in the engine lubrication system,
emergency coolant temperature in the
engine cooling system.
The purposes and functions of the in-
struments included in the instrument
cluster as well as combined indicator to-
gether with the control panel and pilot
lamp block are described in Section 4
“Drive Controls and Instruments”.
The sensors of the instruments and
emergency indicators and monitors of
serviceability of tractor assemblies and
systems include:
• Sensor of the indicator of the coolant
temperature in the engine cooling sys-
tem;
• Sensor of the indicator of the emer-
gency engine coolant temperature;
• Gauge of the oil pressure in the en-
gine lubrication system;
• Sensor of the emergency oil pressure
in the engine;
• Sensor of the engine air cleaner clog-
ging;
• Sensor of the air pressure in the
pneumatic system;
• Sensor of the emergency air pressure
in the pneumatic system;
• Interrupter of the warning lamp of ap-
plication of the parking brake;
• Fuel level gauge sensor;
• turn indicator interrupter;
• Sensor of the emergency level of
brake fluid;
• Sensor of emergency oil pressure in
the HPS;
• Gearbox oil pressure gauge;
• Stop-light switches.
To obtain information on the perform-
ance parameters of the tractor, rear
wheels rotational frequency indicators
and a signal from the alternator phase
winding are used.
The engine start interlock switch serves
for preventing the engine starting with a
gear engaged.
The auxiliary equipment includes:
• Electric motor in the cab ventilation
and heating system with its switch;
• Electric wiper of the windscreen;
• Electric wiper of the rear screen;
• Windscreen washer.
The electric equipment schematic dia-
gram provides for installation of an air
conditioner together with its relay,
sensor and thermostat as well as of a
radio-tape recorder and loudspeakers.
The electric power consumers and their
respective circuits are protected by
fuses.