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The fuel oil pressure is a critical factor that influences Small Excavator performance. Generally, the reasons that cause low fuel oil pressure are listed as followings.
1.The fuel oil is not added enough
If the fuel oil is not added enough, the available fuel oil for the engine will be reduced or the air entering the engine leads to failing to supply fuel oil to the engine, both of which will lower the fuel oil pressure and increase abrasion to the bent axle and bearing, cylinder liner and piston because of bad lubrication. Sany India
2.The fuel pump stops rotation
If the driving gear and the driving shaft get damaged, the fuel pump will stop rotation and the fuel oil pressure will lower to zero.
3.The fuel pump get abraded Sany Excavator
When the abrasion of the pump spindle, wheel gear and the gear teeth increases, the fuel oil for the engine will be reduced, thus lowering the fuel oil pressure of the small excavator.
4.High temperature of the engine
The high temperature of the engine will be caused by too much incrustation in the cooling system, bad radiating and overload working for long time, which will increase the aging, deterioration and attenuation of the engine oil, thus lowering the fuel oil pressure.
5.Oil leak of the radiator Sany Excavators
The oil leak of the radiator will contaminate the engine and deteriorate the cooling effect, the engine becoming overheating and fuel oil pressure lowering down.
6.The filter blocking
When 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 small excavator. http://www.sanyexcavator.com
 
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