How To Diagnose The Fault Of Diesel Generator Set

The use of diesel generator set, in addition to usually pay attention to maintenance, but also know the general diesel engine fault diagnosis, so, what are the ideas and methods of diesel generator set fault diagnosis?

The fault diagnosis of diesel engine is one of the difficulties in diesel engine maintenance and service. Dingbo Power has explored a set of ideas and basic methods for fault diagnosis of diesel generator through long-term practice, which are introduced as follows:

1. Familiar with the structure of diesel engine is the basis of fault diagnosis

In order to diagnose the fault of diesel generator, it is necessary to be familiar with the basic structure and working principle of diesel generator

In the diagnosis of generator faults, it is important to know the basic configuration of diesel generators, such as the fuel system of the generator set is electrically controlled or mechanical, mechanical monomer pump or distribution pump, electrically controlled high pressure common rail or electrically controlled monomer pump, etc. In addition, we also need to know the common technical parameters of the diesel engine, such as valve clearance, oil supply lifting Angle, circulating oil supply, fuel injection pressure and so on.

2. Diagnose the fault location based on the fault symptoms and features

When the diesel generator fails, no matter it is simple or complex, it will show in certain forms. Seriously find out the phenomenon and characteristics of the fault, it is not difficult to find the root of the fault, and then use the corresponding method to eliminate.

3. Locate the fault cause and location

For a diesel generator, commonly used vision, hearing, touch, smell and other methods to determine the specific location of the fault.

Q: Mainly by asking the operator when the fault occurs, there is abnormal sound, smoke, odor and other abnormal circumstances, and then further targeted diagnosis, which can greatly save time and improve the accuracy of generator set fault diagnosis

Look: it is carefully observe the readings of various instruments, exhaust smoke color, water and oil, etc. Whether the parts of the diesel engine are broken and deformed, whether the fasteners are loose, separated or fallen off, and whether the relative position of the assembly of the parts is correct, etc.

Listening: a slender metal rod or wooden handle driver is used as a stethoscope, with which the stethoscope touches the corresponding part of the outer surface of the diesel generator to hear the sound emitted by the moving parts and understand their changes.

Touch: it is to check the working condition of parts such as gas distribution mechanism and vibration of parts such as high-pressure oil pipe and fuel injector by hand feeling.

Olfactory: The sense of smell of the senses. Sniff out whether the diesel engine smells abnormal to diagnose the specific location of the fault.

4. Diagnose faults with modern detection equipment

When diagnosing the faults of diesel generators, modern detection equipment should be used as much as possible to improve the efficiency and accuracy of fault diagnosis.

5. Some emergency measures

When a diesel generator fails, some faults cannot be diagnosed immediately, and these faults may develop. In order to prevent the occurrence of major accidents, the diesel engine must be further diagnosed after reducing the speed or flameout. For example, the generator set occurred flying, must be immediately used to cut off oil, gas or increase the load of the generator set flout, because the diesel engine is in the state of flying, the diesel engine parts wear and data, the service life of a sharp decline.

DINGBO POWER is a manufacturer of diesel generator set, the company was founded in 2017. As a professional manufacturer, DINGBO POWER has focused on high quality genset for many years, covering Cummins, Volvo, Perkins, Deutz, Weichai, Yuchai, SDEC, MTU, Ricardo, Wuxi etc, power capacity range is from 20kw to 3000kw, which includes open type, silent canopy type, container type, mobile trailer type. So far, DINGBO POWER genset has been sold to Africa, Southeast Asia, South America, Europe and Middle East.