Kobelco excavator parts manufacturers introduce the reasons for the excavator to slow down?

1. Some cars use solenoid valves (fuel blockers) to control the oil circuit to cut off the fuel to achieve the intention of flameout.

I have encountered a similar problem. The gap of the solenoid valve is too large, just like the flame-out drawing half of the effect, the load causes the lack of fuel supply, so the speed drops, and the speed drops cause the lack of fuel supply to the diesel pump. This is a vicious circle, which will eventually lead to flameout . Liugong excavator parts will not have this situation.

2. The influence of temperature is relatively small. After all, there is a cooling device. The environmental impact is mainly air pressure. For high altitude areas, the air is thin, the oxygen content is low, and the imported excavator parts are lacking in incineration, which affects the engine performance, but the air booster It also reduces the impact of high altitude.

The main reason that affects the engine speed is still the change of the load. When the hydraulic system fails to change the displacement, it is easy to cause the speed to drop or hold the car.

3. There are two main reasons for the speed drop. The engine performance is degraded and the main pump is defective. Check the engine and the main pump.

You can take out all the hydraulic filter elements by yourself. If you see a lot of copper powder on the filter element, it means that the main pump has a problem and needs to be overhauled.

You can also enter the monitoring panel to check the engine speed. The minimum throttle idle speed is more than 1,000 revolutions, the maximum throttle idle speed is more than 1300 revolutions, and the maximum throttle during work is more than 1900 revolutions.

If there is no copper powder and the engine speed is normal, removing the two solenoid valves on the main pump for cleaning can basically eliminate the problem.

4. If the output power of the engine is much lower than the rated power, the simplest method should be used to judge at the construction site.

First look at whether the fuel filter element is blocked, whether there is a leak in the fuel path, whether the plunger, fuel injection head, and delivery valve in the fuel pump are severely worn, whether the air filter element is unobstructed, and whether the engine with a turbocharger, Whether the turbocharger is damaged, whether the engine is rapidly high temperature, the viscosity of the oil decreases, the compression ratio is reduced, whether the cylinder liner assembly is worn out, and the engine valve is not closed tightly. These are all serious effects. The factor of engine power.