What are the Serious Reasons for the Engine Wear of the Excavator?

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The intercooler in the excavator is a device used to cool the intake air on the turbocharged engine and is an important part of the supercharging system. If the intercooler is damaged, the turbocharged engine needs to compress the air to increase the intake air volume, and the compressed air will increase the temperature, and the high temperature air entering the cylinder will easily cause deflagration and other dangers.

The role of the intercooler of the excavator: The intercooler is in front of the engine and looks exactly like the radiator.

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1. Reduce the engine intake temperature

2. Reduce engine fuel consumption

3. Improve turbocharger matching and adaptation

Intercooler failure phenomenon

1. The excavator engine sucks in unfiltered dust and foreign particles, which will damage the internal parts of the engine. Common phenomena: heavy exhaust, low speed, reduced engine power, and extremely dirty oil.

2. The turbocharger is damaged, the oil is leaking, and the muffler will spray oil.

3. Blocking of the intercooler will cause poor air cooling and cause abnormally high engine temperature.

Three, intercooler failure phenomenon

1. Check the air filter element, the supercharger, the air pipes from the air filter element to the engine, and check the connection between the intake pipe and the intercooler for any abnormalities.

2. As for the 8 type engine, if the diesel oil circuit enters the air to cause the common rail pressure to drop, the injector will be controlled to increase, and the suction air pressure will also decrease, so check the diesel oil circuit to confirm that there is no air in the oil circuit.

3. If there is black smoke or holding the car, check whether the intercooler hose is blocked.

When starting the excavator, it is found that all the indicators on the instrument panel are off and there is no response. You can simply follow the steps below.

1. The battery is stored for a long time, and the internal computer version and GPS of the excavator consume electricity, so check whether the battery indicator is normal.

2. Fuse, when the excavator is working, the fuse is blown due to excessive operating current or partial short circuit. Therefore, it is necessary to check whether the main power fuse of the relevant indicator is blown. If it is found to be damaged, replace the fuse with the same specification. Do not use copper wire winding instead.

3. Whether the delay fuse and the main power line are short-circuited or open.

4. Whether the engine antifreeze, engine oil, hydraulic oil, fuel, etc. are sufficient.

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