The oil of excavator needs to be changed regularly during daily use. Some people ignore this step in order to reduce costs or do not understand the importance of oil. This will cause engine damage and even excavator maintenance. This article will summarize the possible harm caused by not changing the oil in time, so as to let people understand the importance of changing the oil in time.
1. The acid resistance of engine oil and the ability to neutralize acidic substances deteriorate with long-term use. The oleic acid value of the engine increases obviously at the working time, which causes acid corrosion to the engine and shortens the service life of the engine.
2. The viscosity temperature characteristics of oil used for a long time become worse. Viscosity changes greatly at high and low temperatures. Poor low-temperature starting performance will make the oil unable to quickly reach the gap of moving parts when the engine is started, resulting in dry friction between parts and increasing wear. Similarly, a good lubricating oil film cannot be formed at high temperature, so it cannot provide good protection for the engine.
3. The long-term used engine oil has poor cleanliness, dispersion and oxidation resistance. During operation, the engine is easy to produce a large amount of carbon deposit, colloid, oil sludge and other substances to deposit in the engine. It may lead to poor lubrication, intensified wear of devices, greatly increased fuel consumption, reduced power, and even block the oil passage in serious cases.
To sum up, the engine oil must be replaced every time it is used for a certain period of time. And the replaced waste engine oil should not be discarded or dumped at will. It should be delivered to a recycling company with relevant qualifications for environmental reuse.
