Motor grader DZ-98        Motor grader DZ-98B        Motor grader DZ-98B
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Fuel system of motor grader DZ-98B

The fuel system of the motor grader consists of tank 5, manual fuel feed pump 6, two coarse filters 14 and fine filter,high-pressure fuel pump, fuel pipelines.
Fuel tank 5 has the partitions inside to dampen the energy of the fuel vibration.The tank is installed on the motor grader frame and secured with the metal bands. Fuel dipstick 3 is used to measure the level of the fuel in the tank.
Fuel system of motor grader DZ-98B A gauze filter is provided in tank filler neck 4. Drain cock 11 available in the tank bottom serves to drain the sediment.
If requried, feeding the fuel into the system may be cut off by cock 12. Through this cock fuel via fuel line 13 flows by gravity to starting preheater pumping unit of engine cooling and preheating system. Cock 15 mounted on the motor grader frame serves to cut off feeding of fuel into cooling and preheating system. Manual fuel feed pump 6 helps to fill the system with fuel and bleed air therefrom.
While the engine is running, the excess fuel formed in the high-pressure fuel pump is removed via fuel line 2 into the tank, and from the injectors via pipe 1, into the atmosphere.
Fully-variable regulator control of rotational speed of engine crankshaft serves to change fuel supply to the engine cylinders.
When position of the lever 8 located in the cab is changed, the force is acting on the lever of fully-variable regulator through the linkage system.
Upper position of the pedal corresponds to the minimum fuel supply. The pedal can be fixed in any intermediate position by a mobile stop 9 by which is set the required minimal speed range of engine operation. Downward motion of the pedal in order to increase fuel supply is not limited by the stop 9.
The engine shut-down handle 7 for stopping the engine by the rope 10 is connected with the stoppage mechanism of high pressure fuel pump. Upward motion of the hadle ceases fuel supply by pump.
In the Y1D6-TK-C5 engine fuel supply can be changed, in addition to the pedal, by means of the control lever located at the front left of the driver's seat. Upward motion of the lever increases fuel supply, downward motion of the lever decreases fuel supply. In order to stop the engine, shift the lever downward against the stop.