The excavator emitted black smoke 200

The discharge of your excavator hydraulic pump can be said to have a fixed discharge range, if you increase the discharge of the lifter, the throttle will definitely work fast, but the idle speed will hold the car and emit black smoke. If you turn the release down, the small throttle is also fine, and the high throttle strength will lack the speed. There is a manufacturer that specializes in treating this problem, and his principle is to collect the speed signal of the engine to control the discharge of the hydraulic pump, and the variable discharge of the proportional solenoid valve.

Summary. What's the deal with the black smoke when the excavator is working? Black smoke is emitted for the following reasons, the first engine power is insufficient, when it increases the amount of fuel injected into the cylinder, it does not burn sufficiently, so it emits black smoke.

This problem is a normal phenomenon, for example, when you dig in the soil, you dig up a rock, and the engine will emit a puff of black smoke. Second, the engine maintenance is not enough, due to the excavator plus more diesel impurities, the fuel filter element service cycle becomes shorter, which will also cause the engine to emit black smoke, insufficient power, stuffy car and other situations. The third is that the engine fuel injector is broken, and it cannot be atomized and sprayed into the cylinder, causing black smoke.

What's the deal with the black smoke when the excavator is working? Black smoke is emitted for the following reasons, when the first engine power is insufficient, when it increases the amount of fuel injected into the cylinder, it does not burn sufficiently, so it emits black smoke. This problem is a normal phenomenon, for example, when you dig in the soil, you dig up a rock, and the engine will emit a puff of black smoke.

Second, the engine maintenance is not enough, because there are more diesel impurities added by the shochong and the excavator, the fuel filter cycle becomes shorter, which will also cause the engine to emit black smoke, insufficient power, stuffy car, etc. The third is that the engine fuel injector is broken, and it cannot be atomized and sprayed into the cylinder, resulting in black smoke.

Hello, I am Sany 75 excavator, and now the working time is 900 hours, and my excavator is now pulling black smoke as soon as I work.

This problem is a normal phenomenon, for example, when you dig in the soil, you will dig a rock, and the engine will emit a puff of black smoke. Second, the engine maintenance is not enough, due to the more diesel impurities added by the cleaning and excavator, the fuel filter cycle becomes shorter, which will also cause the engine to emit black smoke, insufficient power, stuffy car and other conditions. The third is that the engine fuel injector is broken, and it cannot be atomized and sprayed into the cylinder, causing black smoke.

I excavator sometimes work, I take a **, suddenly do a move, the excavator directly feels like the fire is about to go out, the smoke is the same as the train, what's going on.

The engine injector is broken.

I changed the excavator to a turbocharger, and it became like this, and as soon as I did it, black smoke came out, and now I have checked all the air filters and air intakes, and there is no problem.

It's like knowing what caused it.

Too much power to stand it.

Making a move is also a black smoke and not a job.

The reason for the engine.

Advice from the old driver:

Analysis of the causes of blue smoke from excavators.

1. Excessive engine oil. When there is too much oil, the crankshaft rotates at high speeds and the oil splashes onto the cylinder wall and into the combustion chamber.

2. Whether the sealing ring of the excavator supercharger is damaged. If the oil is not excessive, it is necessary to consider whether the supercharger seal ring, piston ring is damaged, whether the piston ring is installed in the correct direction, and the possibility of abnormal wear of the piston cylinder liner.

3. Whether there is a crack in the oil passage on the cylinder head. Cracks in the oil duct can cause oil to enter the combustion chamber.

4. Oil leakage from valve oil seal. The oil will seep into the cylinder from the valve seal leak and the valve seal will be replaced.

5. Ablation of cylinder head gaskets. Oil can seep through the broken head gasket into the cylinder and replace the engine head gasket.

6. Oil-water separator failure. The oil-water separator is used to separate the oil vapor in the crankcase, and if the oil vapor is damaged, it will go directly into the cylinder and replace the oil-water separator.

7. The wrong type of engine oil used or the wrong type of engine oil replaced will also cause blue smoke from the excavator. Try not to use the wrong type of oil.

8. The air filter is blocked. A clogged air filter will increase the resistance during the cylinder intake, the air intake will be poor, and there will be a certain negative pressure in the cylinder, which will also suck the lubricating oil into the combustion chamber.