The five major repair skills of the excavator's hand -will meet

How many machines have machines have encountered engine failures when driving excavators? What do I do when the engine is abnormal? Is it for my own repair or a repair factory? Today I want to talk to you about the engine failure. Phase form and method of judgment.

1. Insufficient power of the excavator engine, there is an abnormal noise, the exhaust pipe is fascinated by black smoke

Failure analysis: This phenomenon is due to the too late to ignite, the pressure of the machine burning room is insufficient, and the motor power drops suddenly, and the original expansion gas has recovered, which makes a loud noise. And because the burning gas is mixed with it to produce black smoke.

Solution: If you find a problem, you should contact the repair shop in time for repair.

Second, when the excavator engine oil consumes a lot

Failure analysis: When the engine oil consumes a lot of consumption, it is usually because the oil enters the combustion chamber and the leakage occurs. The cause of the oil into the combustion room is mainly due to the high pressure of the engine oil or the engine parts that have been severely worn and the engine parts are too large. The oil leakage is caused by the aging of confidential pads and the death of the valve card.

Solution: If this occurs, you should contact repair manufacturers in time for maintenance.

Third, the noise of the excavator engine becomes loud, there is a huge sound of the throttle, and the car body has a clear sense of vibration.

Failure analysis: In this case, the vehicle should be used to lift the vehicle out of the ground to see if there is any damage traces at the bottom of the engine. If the signs of severe bumps appear on the bottom guard, it will cause severe deformation to make it close to the oil bottom shell. In this case, when the acceleration of the accelerator is accelerated, the bottom guard plate and the oil bottom shell are frequently exposed to make noise and cause a strong vibration of the car body. Essence

Solution: Remove the engine bottom protective board and calibrate the recovery.

In the process of using tips as driving machinery, if there is severe potholes or hinders on the road surface, slow down, be careful to avoid damage to the bottom guard.

4. In normal driving, the temperature of the excavator engine is too high

Failure analysis: If the engine water temperature meter is about to reach 100 ° C, try to add a coolant to observe whether the engine power has decreased. If so, it can be determined as a mechanical system failure.

Solution: As a result, this phenomenon mainly include cooling water leakage, the main valve of the thermostat, the fan transmission belt breaks, the water cover and the cylinder of the cylinder, and the poor fan clutch work.

Solution: If this situation occurs in high temperature summer, the mechanical cold air area can be strengthened, the engine cover can be opened to enhance the ventilation and heat dissipation effect, and the water temperature meter should be observed at any time in mechanical walking operations to ensure that its temperature cannot be higher than 95 degrees Celsius. If a serious failure occurs, you should contact the repair shop in a timely manner for professional maintenance.

Fifth, the new oil of the excavator becomes black

Failure analysis: There are two main reasons for this situation. First, the process of use is oxidation in the use of engine oil; the other is due to a clean dispersant.

In daily use, if the oil has never turned black, it means that the oil itself does not play a cleaning effect. At present, the oil on the market contains a clean dispersant component. The main function of this ingredient is to self -absorb the carbon accumulation and oil oxide generated by self -absorbing. It can be discharged when changing the oil to maintain the cleaning of the engine.

Solution: Time to quantitatively replace the oil and oil filter element. After the oil is used for a long time, a large amount of acidic substances will be generated, which increases the concentration of the oil. If it is not replaced for a long time, it will directly affect the normal operation of the engine.

In short, we must start with the details of daily work, watch more, listen, and think more. Continuously enrich the quality of self -professional, improve self -examination, discover problems in time and make targeted solutions.