The common problems of Cummins Cummins generator

Generating units in the domestic market is very hot, especially the joint venture like Chongqing Cummins, Dongfeng Cummins and other domestic brands is the largest part of the market, has sales and customer service in national each big city, good quality, good service, the price is right was the cause of Cummins diesel generator set can be sold, it is because there are a large number of the use of a user, when the machine has some fault, the scope is not small, technical personnel in Shenzhen Dong Kang power equipment limited company combined with the existing question, and taking into account the summer coming, because of limited electric reason, diesel generator set aside almost a year's time, there may be some again run time for users, our analysis following several common problems:

The causes of the failure first launched 1 units: low oil pressure

Cummings during the operation of generating units, low oil pressure will cause the transmission parts all the bad lubrication, can appear even gap cylinder lock and large bearing, if the oil circuit is blocked, the use of the Cummings generator, will directly affect the.

Following the Cummings turbine oil pressure is low will appear the situation:

Lubrication system: (1) the dirty oil filter, oil suction pipe is blocked; oil pressure regulator failure.

(2): plugged oil cooler; cooling system radiator core are blocked by external gap.

(3) the mechanical adjustment and repair: the bearing clearance is improper, the engine needs an overhaul, main bearing or connecting rod bearing failure.

Use and maintenance: Engine overload, oil changes on time, the correct use of oil filter. It is only in the right way of maintenance, to ensure the normal use of generation unit.

2 Cummins generator second failed to start: coolant used non flow

If the coolant does not flow run Cummings generator, resulting in a large circulation is not up to the cycle, or is there a big cycle of small circulation, these will lead to the cylinder temperature rise quickly, the oil temperature rise, leading to the unit stopped suddenly, safe use and at the same time corresponding to the he set also will have a direct effect of.

The following reasons coolant not negotiable:

(1) Cummings generator radiator fins blocked or damaged. Cooling fan not working or clogging the radiator coolant temperature does not drop down, tank rust damage, resulting in leakage, can also cause coolant circulation is not smooth.

(2) the thermostat fault Cummings generator. The combustion chamber of the engine must be equipped for temperature control, if the thermostat is stipulated in the temperature (82 degrees) and open, which will help the small cycle, if there is no thermostat, cooling liquid can not keep the cycle temperature, which may lead to low temperature alarm.

(3) the coolant level low or not in compliance with Cummins generator. Low level, can increase the temperature of cooling water for a direct result of this will lead to the cooling fluid circulation is not smooth, the coolant antifreeze component is 50% + 50% softening water DCA4, if it is not provided, the pipeline will be blocked and the inner wall of the inner pipe rust, therefore, cannot the normal cycle of cooling liquid.

(4) if there is a mixed gas, pipe cooling system of Cummings generator will be blocked, the suction valve and discharge valve expansion tank damage will affect the cycle of direct pressure must always check, if the pressure value in accordance with the regulations, then the suction pressure is 10KPA, the exhaust pressure of 40kpa, which is also an important factor to judge the exhaust circulating pipe work.

(5) pump fault. Check the pump work is good or not, if the pump is not working properly, the driving gear pump will be subject to wear, replace the new to the normal circulation must be.

The above is the experience of our technical staff, the list to share with everyone, hope to be able to give you some help, you can notice the user if these small problems in the daily work, also can avoid the above problems appear.

If not understand, can call the company I phone 0771-3805033 4008333086 consulting related technical problems.