The main way to determine the fault current diesel generator set is used more cut off, comparison, verification methods and instrumentation check method. 1. Partition method. Off method is to stop a single cylinder diesel engine work or stop by one of several or even all cylinder fuel injection, diesel and stopped to observe the change before and after the injection. Check each cylinder work with this method, in particular to check the color of each cylinder exhaust most effective. 2. Comparative Law. Comparison method used more commonly, after diesel generators fail, if there is suspicion of a component or system which, a good quality replacement parts, or one normal system Cummins generator maintenance, failure to observe whether or eliminated, if the fault disappears generator maintenance point to prove fault occurred in this part or the system. 3. Verification method. Verification method is a known cause of the failure, by a tentative adjustment or removal, to check the correctness of the analysis in the past, and to find fault lies. 4. Instrument Inspection Act. Instrument inspection method is the use of the instrument or instruments for testing diesel generators generator maintenance, find hidden faults, understand the performance and condition of the unit. In short, for different symptoms, Jiang Su Haixing Power reminded to make flexible use of different methods for troubleshooting, diesel generator set from the principles, structures start to find solutions to problems. The following different types of diesel generator sets for analysis Symptom aim is to make diesel generator set operator in the event of the same type symptoms, shorten the time to find fault, timely troubleshooting. Cummins diesel generator set exhaust how function is to install an exhaust system of the engine exhaust safely discharged to the outdoors; and exhaust, soot and noise away from buildings and crowds. Cummins diesel generator set exhaust system installation: 1, the Cummins diesel generator set installed; for absorbing thermal expansion; unit displacement and vibration; engine exhaust port should be connected to more than 36-inch retractable stainless steel bellows. 2, empathy; directly fixed on the floor of a small turbine vents should also be 18 inches above the bellows. 3, the bellows is strictly prohibited and compensation for acting as elbow pipe installation errors. 4, in order to reduce condensation corrosion; muffler exhaust pipe should be installed as close to the engine; for rapid heating. Muffler and exhaust pipe hanger bearing should be used; prohibited the use of load-bearing engine exhaust pipe. Otherwise it will damage the engine exhaust pipe; reduced turbocharger life. Black iron pipe exhaust pipe is recommended. Select the radius as some elbows. 5, in line with the engine exhaust pipe backpressure limit premise; the entire exhaust system is recommended nominal pipe diameter as consistent and engine exhaust. 6, prohibit the use of vent pipe diameter less than; more vulnerable because crude condensate pipeline corrosion; while also expanding the power loss caused by exhaust emissions. The smaller the diameter of the exhaust system changes; friction losses are smaller. All the muffler and exhaust pipe insulation from the implementation of generator maintenance company, to avoid accidental contact with fire or misuse start automatic fire extinguishing equipment, reduce corrosion and thermal radiation condensing unit room. Exhaust pipe and combustibles interval of at least 9 inches. You must pass through walls and ceilings should be added to the exhaust pipe or insulation sleeve cotton flame. The temperature is increased at room temperature 100 ° F, about every inch exhaust pipe expansion; 76 inches; proposal must use stainless steel bellows to absorb the thermal expansion of the long straight pipe; exhaust pipe should be laid flat slope; the lower end away from the engine; stretch outdoor or condensate collector. Where generator maintenance, the diesel generator (certified), clever generator maintenance provided by the Electrical Equipment Co., Dongguan ShangXi firewood. Electrical Equipment Co., Ltd., Dongguan ShangXi Chai (www.dongguanfadianji.cn) is an industry leader in Dongguan, Guangdong, diesel generator sets, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the diesel generator leadership with the staff warmly welcome all inquiries negotiations to create a better future for diesel generators.