Fuel oil pressure is an important factor that influences excavator machine's performance. Today we will discuss about the reasons that cause low fuel oil pressure.
1. High temperature of the engine
The reasons for the high temperature of the engine include too much incrustation in the cooling system, poor radiating and working for long time with overload, all of which will increase the aging, deterioration and attenuation of the engine oil, thus lowering the fuel oil pressure.
2. The fuel pump get abraded
With the abrasion to the pump spindle, wheel gear and gear teeth increasing, the fuel oil supplying for the engine will be reduced, thus lowering the fuel oil pressure of the excavator machine.
3. The fuel oil is not added enough
If the fuel oil is not added enough, the air entering the engine will lead to failure to supply fuel to the engine, making the engine lack of power. And the insufficient fuel oil pressure will increase abrasion to the parts like bent axle, bearings, cylinder liner and piston.
4. The fuel pump stops rotation
If the driving gear and driving shaft get damaged, the fuel pump will stop rotation and the fuel oil pressure will lower to zero.
5. The filter blocking
If the filter is blocked, the fuel oil will enter the main oil gallery without filtration, thus increasing impurity and lowering the fuel oil pressure of the excavator machine. Therefore, the filter should be maintained regularly and kept clean.
6. Oil leak of the radiator
The oil leak of the radiator will contaminate the engine and deteriorate the cooling effect, resulting in the engine overheating and lowering down the fuel oil pressure.