Regardless of whether the engine is hot or not in spring, summer, autumn and winter, please raise your hand if you stop working and directly turn off the engine and leave!
In fact, during the normal construction process, many excavators have this hidden wrong operation habit. Most people do not think it is because they can’t see the specific damage and impact on the engine. Today, I will give you a detailed introduction to the excavator. Heart-engine maintenance methods, and the reasons why the engine can not be turned off directly!
Hazards of turning off the engine suddenly
Excavators are not like cars. Excavators work at high loads every day, so when the engine is suddenly turned off before it has cooled down, maintaining this wrong habit for a long time will accelerate and shorten the engine life. Therefore, except for emergency situations, do not suddenly turn off the engine. Especially for excavators for high-load projects such as mines and quarries. When the engine is overheated, don’t shut down suddenly. Instead, keep the engine running at a medium speed and let it gradually cool down before turning off the engine.
Steps to turn off the engine
1. Run the engine at medium and low speeds for about 3-5 minutes to gradually cool the engine. If the engine is often suddenly shut down, the internal heat of the engine cannot be dissipated in time, which will cause the premature deterioration of the oil, the aging of gaskets and rubber rings, and the turbocharger A series of failures such as oil leakage and wear.
2. Turn the start switch key to the OFF position and turn off the engine
Check after turning off the engine
Turning off the engine is not the end, and there are many inspection details for everyone to confirm one by one!
First: inspect the machine, check the working device, the outside of the machine and the lower car body for abnormalities, and then check whether the three oils and one water are lacking or leaking. If you find any abnormalities, don’t delay the time to deal with them.
Second, the habit of many operators is to fill up the fuel before construction, but the editor recommends that everyone fill the fuel tank with fuel after the break, once and for all.
Third: Check whether there are any paper, debris, combustibles, etc. around the engine room and the cab. Don’t leave inflammable and explosive materials such as lighters in the cab, and directly choke unsafe hazards in the cradle!
Fourth: Remove the dirt attached to the lower body, bucket and other parts. Although the crawler, bucket and other parts are relatively rough, the dirt and impurities attached to these parts must be removed in time!
Summarize:
In a word, the excavator is a “golden lump” bought by everyone with years of wealth and hard work, so everyone must pay special attention to every operation and maintenance detail, especially the big heart of the excavator-the engine!
Post time: Nov-09-2021