What are the techniques for troubleshooting small diesel generators? -Huaqiang Electronic Network

Single chip microcomputer STM32L151CCU6

Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ)

One-piece inductor

What are the techniques for troubleshooting small diesel generators?

We often say that we have to carry out daily inspections and maintenance of diesel generators. Before I shared with you how the diesel generators are routinely inspected and maintained, what are the methods for eliminating small diesel generators? In fact, we can distinguish it based on the sound of the diesel generator, or we can distinguish it by comparison. Let's take a look at the methods to eliminate the failure of small diesel generators!

(1) Determine the location of the fault based on the sound of a small diesel generator. Use a heart-shaped screwdriver or a thin iron bar with a half-meter long end to make a â€œsounding needle judgmentâ€. One end of the ear and the other end touch the surface of each inspection part, which can clearly monitor the part of the abnormal sound. The size and nature of the sound. The sounds from different parts are often different. For example, if the main bearing clearance is too large, the impact sound is dull, and the valve and piston impact sounds are crisp. If the flywheel keyway is loose and the "click" sound is generated, the fault is determined according to different sounds. .

(2) Use the local stop method to judge. After the fault analysis, if the fault is suspected to be caused by a certain cylinder, the cylinder can be stopped to observe whether the fault phenomenon disappears, thereby determining the cause and location of the fault. For example, a small diesel generator emits black smoke, and the analysis is that the nozzle of a certain cylinder nozzle is blocked, and the cylinder can be stopped to supply oil. If the black smoke disappears, the judgment is correct.

(3) Judging by comparison method. According to the fault analysis, it is suspected that the fault may be caused by a certain zero or component. The part (or component) can be replaced with a new one, and then the start-up operation compares the working condition of the small diesel generator before and after the change, thereby finding the fault. the reason.

(4) Use the heuristic method to judge. According to the analysis of the cause of the fault, it is difficult to judge at a time. It is possible to change the technical state in the local range and observe whether the working performance of the small diesel generator has an influence, and thereby determine the cause of the fault.

For example, a small diesel generator can not produce the specified power. It is suspected that the compression stroke pressure of a cylinder is insufficient. It is caused by a large seal between the cylinder and the piston. At this time, the cylinder head is opened to inject a small amount of oil into the cylinder to improve the sealing condition. Then reinstall the cylinder head. If the pressure is increased during the start-up test, the output power will increase, indicating that the analysis is correct.

After long-term use, small diesel generators have many faults. Due to different models, domestic and imported structures and operating environments are different, and the causes of failures are different. Therefore, when dealing with problems, specific problems should be Make specific differences according to different situations. Correctly analyzing and judging the cause of diesel engine failure is a meticulous work. It should not be dismantled before the cause of the failure is uncleared. This will not only eliminate the failure, but may also be achieved when reassembling the disassembled parts and components. Less than technical requirements cause new failures.

Call if necessary

Tips:

For more information, please click:

Hansa Power

Hansa Gasoline Generator

Hansa Power Generator

Shanghai Hansa Generator