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Several common faults of Cummins diesel generator set
[Abstract]:
Cummins diesel generator set in the market is very popular, because the quality of Cummins unit in a leading position in the brand diesel generator, plus the perfect customer service service, the summer season, because the power of the reason, one year after the generator placed, may appear in operation, small series analysis of several common the problem for you:
The first failure of the Cummins generator set: low oil pressure
During the operation of Cummins generator unit, the low oil pressure will cause all the transmission parts to be poorly lubricated, even the gap between cylinder lock and large bearing will occur. If the oil way is blocked, the use of Cummins generator set will directly affect.
The following are the accidents of the Cummins generator set and low oil pressure.
(1) lubricating system: dirty oil filter, oil suction pipe obstructed; oil pressure regulator failure.
(2) cooling system: oil cooler blockage; the external gap of the sealed radiator core.
(3) mechanical adjustment and repair; unsuitable bearing clearance; the engine needs to be overhauled; the main bearing or connecting rod bearing is damaged.
(4) use and maintenance: Engine overload; change the oil on time, the correct use of the oil filter. This is only in the right way of maintenance to ensure the normal use of the generator set.
The second startup failure of the Cummins generator unit: non circulating coolant
The coolant is not in circulation, Cummins generator's operation, including the cycle, cycle is not small, or is there a big cycle of small circulation, these will lead to the cylinder temperature rises rapidly, the oil temperature rise, which will lead to a sudden stop of Cummins generator group will directly affect the safe use of.
The following reasons cause the non circulation coolant:
(1) the heat sink of the Cummings generator set is blocked or damaged. The cooling fan is not working or the radiator is blocked, the temperature of the coolant does not pull down, the sink is rusty and damaged, the leakage is caused, and the circulation of the blood can also be caused.
(2) the fault of the automatic thermostat of the Cummings generator set. The engine combustion chamber is equipped with a constant temperature control engine combustion chamber equipped with the purpose. If the thermostat is opened at a prescribed temperature (82 degrees), this will help small cycles. If there is a thermostat, the coolant can not keep the circulating temperature, which may cause low temperature alarm.
(3) the liquid level of the coolant is low or does not comply with the Cummins generator set. Low level, can improve the cooling water temperature will lead to a direct result of this non circulating cooling liquid, the coolant is 50% component antifreeze + 50% softening water DCA4, if it is not provided, the pipeline will be blocked and the inner wall of pipeline will rust, so the coolant can normal cycle.
(4) if there is a mixed gas pipe cooling system Cummings generator will be blocked, suction valve and discharge valve and expansion tank damage will affect the cycle of direct pressure, and should always check, if the pressure value in accordance with the regulations, the suction pressure 10KPA, discharge pressure of 40kpa, in addition to the exhaust pipe of the work is also an important the factors to determine the blood circulation.
(5) the failure of the pump Cummins generator set. If the pump works well, the pump will not work properly. If the gear pump is worn, it must be replaced by a new one.
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