Air blockage and elimination method
When the
air bubbles from the oil outlet valve, it is judged that there is the
air blockage fault in the engine fuel supply system, the starter can be
continued to hit until the air in the pipeline is exhausted, indicating
that the pipeline is not damaged and the engine can work normally.
If
during hitting the starter, there is always air exhausted, indicating
that there is a leak in the oil supply pipeline. The method of
eliminating air blockage is to find the leak site, seal well to
eliminate the leak, and then eliminate the air in the system. If the air
in the oil supply pipeline is blocked by evaporation of fuel molecule
into fuel vapor due to very hot weather and low air pressure, this is a
special case. People call it high temperature air blockage, this is
another case.
Foreign body blockage and elimination method
When
check out there is no oil or less oil from the oil valve, foreign body
blockage can be judged. Check the blockage parts, you can use the method
of hand oil pump to continue to check, when pulling the handle of the
hand oil pump feel great resistance, can focus on inspection of fuel
supply pipeline from fuel tank to hand oil pump, the blockage may be at
the inlet of the fuel pipe in the fuel tank, foreign matter in the fuel
tank blocked the oil inlet, the blockage part maybe is fuel filter, impurities or colloids in the fuel block the filter
If
the resistance is greater when pushing the hand oil pump, can focus on
checking the oil supply pipeline from the hand oil pump to the
high-pressure pump. The blockage may occur in the fine fuel filter.
The
way to check whether the centrifugal oil filter is working properly is
to monitor the "buzz" of the diesel engine when its rotor continues to
rotate just after shutdown. If the sound is working normally for a long
time, if the sound of rotation is not heard, indicating that the fault
occurs.
When check ice blockage fault, it must be in Winter,
maybe there is water in diesel oil. Common ice blockage fault part is in
pipelines and fittings, the situation is more complex, warm pipeline,
melting and freezing, if the pipeline is naturally open, it is not
necessary to find the exact location of the ice blockage. After removing
the foreign matter blockage, the fuel supply system should also be
thoroughly cleaned, even the fuel tank should be cleaned. In order to
prevent material resistance, attention should be paid to long-term
injection of clean fuel oil in fuel tank.
Water blockage and elimination method
When
the diesel engine is not stable enough, there is a fire phenomenon,
even when the engine stops suddenly during operation, it can be judged
that the diesel engine is blocked. Observing the exhaust pipe will find
that the exhaust pipe continuously emits white smoke. When the exhaust
pipe receives water droplets or drips more, the water blockage fault of
the diesel engine can generally be judged.
Water blockage means
that there is water in fuel supply system and fuel tank. If can sure
water blockage fault, should release water and oil which in bottom, and
the engine should be started continuously by the starter to see if the
water blockage fault can be eliminated. If it can not be removed, all
remaining fuel should be discharged, and the fuel tank and fuel supply
system should be thoroughly cleaned, and the fuel filter (core) should
be replaced. After that, should pay attention to the addition of clean
and anhydrous fuel and the possibility of water entering the fuel system
should be excluded. The performance of water blockage is complex, which
should be distinguished from the difficult faults of diesel engines
such as leakage of combustion chamber. For example, the damage of the
cylinder gasket leaks into the combustion chamber, and the moisture is
discharged from the exhaust pipe. The diesel engine also works
unsteadily.
According to the degree of water leakage and the
number of cylinders, the amount of drainage is different, and the
working condition of diesel engine is also different. Therefore, it is
necessary to apply experience and judge comprehensively according to
many factors, such as engine operating time, common working conditions,
medium consumption and so on.
Hope the article can help you to solve the leakage faults in Perkins diesel generator set.
If you are interested in diesel generator set, welcome to contact us by
email sales@dieselgeneratortech.com, we will guide you to select the
most suitable product.
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