Chinese people study prevention in already, below, we will understand the harbinger of serious problems of Cummins diesel generator:
The forerunner of burning tile. Diesel engine work speed suddenly reduced, load increased, the engine smoke, oil pressure drop, crankcase issued “haw” dry friction sound, which is the precursor of burning tile. In this case, the machine should be stopped immediately, otherwise it will further aggravate the wear of the bearing, the surface of the journal is fast expanding, the bearing and the journal will soon be stuck, and the engine will flout.
Warning of valve fall. Valve falls into the cylinder, usually due to the valve rod broken, valve spring broken, valve spring seat cracking, air lock clip scattered and other reasons caused. When the cylinder head area “dangdang” tapping (touch piston valve), “there is a” friction touch valve (piston) or other abnormal sound, with a machine working instability, often is the forerunner of fall valve cylinder, at this time should be parked at once, otherwise will be destroyed, cylinder head and cylinder liner, piston and curved rod, break through the body, break a crankshaft.
Foretaste of diesel generator ramming cylinder. Tamping cylinder is a mechanical problem of greater destruction, in addition to the valve falling cylinder caused by tamping cylinder, mostly due to the loosening of the connecting rod bolt caused by. After the connecting rod bolt is loosened or stretched, the connecting rod bearing clearance increases, and then the “da-da” knocking sound can be heard in the crankcase. The knocking sound changes from small to large, and finally the connecting rod bolt is completely scattered or broken, and the connecting rod and bearing cover are thrown out, breaking through the body and related parts.
A harbinger of a broken shaft. When diesel generator crankshaft neck shoulder in hidden cracks due to fatigue, fault symptom is not obvious, along with the expansion of crack is aggravating, a machine in the crankcase a depressing tapping, speed change tapping is aggravating, smoke machine, before long, the tapping increases gradually, launch machine to produce vibration, crankshaft fracture, then fire. Therefore, when the crankcase of the starter presents abnormal sound, it should be stopped immediately for inspection.
The harbinger of a diesel generator flywheel breaking. When the flywheel shows a recessive crack, it will make a hoarse sound when it is struck by a handhammer. When the starter works, the flywheel will produce a knocking sound. When the speed changes, the sound will increase and the starter will shake. If you do not stop the inspection at this time, it is easy to cause flywheel suddenly broken, debris flying injuries and other malignant accidents.
The harbinger of the flying Car. Before the “flying car”, the diesel generator will generally show blue smoke, burning oil or unstable speed phenomenon. At the beginning of the diesel engine speed is not controlled by the throttle, rising rapidly, until beyond the rated speed, the initiation of a large number of black smoke or blue smoke. At this time if not quickly take oil, gas, decompression and other measures to stop, the speed of the engine will continue to rise, and a roar, exhaust pipe filled with smoke, speed out of control, will form the attack of serious accidents such as ramming cylinder.
Conclusion: the harbinger of diesel generator sticking cylinder. Stick cylinder is generally in the diesel engine under the condition of serious water shortage, stick cylinder before the machine operation is weak, the water temperature table indicates that more than 100 degrees Celsius, to drop a few drops of cold water on the body, there is a “hissing” sound, and white smoke, water droplets quickly evaporate. At this time, we should let the starter run at low speed or idle speed to reduce the car temperature, if immediately flout, will cause the piston and cylinder liner attack stick cylinder.
Jiangsu Meiao Power Technology Co., Ltd. is an important manufacturer of diesel generators. Us ao-generator set manufacturers mainly manufacture and sell diesel generator sets, the power of generator sets is 3-3000KW, mobile station is 24-600KW, Marine emergency diesel generator set 24-800KW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, silent speaker, mobile lighthouse, container, etc.) diesel generator Group at the same time engaged in generator set maintenance and generator set accessories after-sales service.
