Technical data

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filtered hot oil to be drained into the oil sump
non-filtered hot oil
splash-lubrication of parts
Fig. 11 – D-245 diesel engine lubricating system.
The air-compressor is supplied with oil from the main oil gallery via engine block chan-
nels and special pipe. From the air-compressor oil is drained into the engine crankcase.
1.2.2.8. Electric Equipment and Starting System
The electric equipment of the D-243 diesel engine and its modifications may include the
G964.3701-1 or G964.3701-1-2 alternators with the rated capacity of 1 kW and rated voltage of
14 V, or G994.3701-1 alternators with the rated power of 1 kW and rated voltage of 28 V, and
that of the D-245 diesel engine and its modifications may include the G968.3701-1 or G968.3701-
1-2 alternators with the rated capacity of 1 kW and rated voltage of 14 V or G998.3701-1 alter-
nators and rated capacity of 1 kW and rated voltage 28 V.
The alternator is a brushless AC generator with built-in compact voltage regulator and
single-sided electromagnetic excitation.
The alternator operates in parallel with the storage battery and serves for recharge of the
latter as well as for supplying the electric power consumers mounted on the machine (tractor)
with DC current.
For starting the diesel engine, an electric starter.
The starting device of the diesel engines equipped with electric starters includes also the
electric touch pre-heater.
The diesel engines are equipped with the 24.3708 starters with the power of 4 kW (5.3
hp) at the voltage of 12 V or the ST 142M or ARJ3124 ones. On the customer’s request, the die-
sels may be equipped with the 20.3708 starter with the power of 5.9 kW (8.0 hp) at the voltage of
24 V or the ST142N one.
The starter is a DC series-excitation electric motor. The starter is switched on remotely
by means of electromagnetic starter relay and starter switch.
The electric torch pre-heater serves for pre-heating of the air to be sucked into the cylin-
ders for the purpose of facilitating the engine start.
To facilitate the engine start at low ambient temperatures all the diesels are provided
with the places for mounting the PZhB-200G pre-starting pre-heater.
1.2.2.9. Air Compressor
The air compressor is intended for supplying the pneumatic braking system of trailers
with compressed air and inflating the tyres.
The air compressor is a piston-type one-cylinder air-cooled one.
The air compressor is driven from the fuel pump driving gear. The air is sucked into the
cylinder of the air compressor from the intake pipe of the diesel engine through a plate valve.
The air compressor parts are lubricated with the oil coming from the lubricating system
of the diesel engine. From the air compressor the oil is drained into the diesel crankcase.