Excavators have been working for a long time, and the surface of the engine is always covered with a thick layer of black grease. Even after the surface cleaning has just been done, a lot of oil stains have accumulated after a short period of time. This can not be cleaned. Why is it? There will be oil leaks from the engine. Engine oil leak
Engine oil leakage is one of the common and common faults. There is no need to panic too much, but it is necessary to master many basic problems of engine oil leakage. The reasons for engine oil leakage and the repair methods are introduced in detail below for everyone.
Engine oil leak
Engine oil leakage
The key damage is to damage the oil, leading to extravagance and waste. The more serious ones will cause insufficient oil and cause internal damage to the engine. Therefore, pay close attention to the oil level. The temperature of the engine is very high, and oil leakage to the engine or other high temperature notes may cause a fire.
PS: Kobelco excavators are equipped with oil load cells. Insufficient oil working pressure will cause an alarm. Strictly distinguish engine oil leakage and oil leakage
Engine oil leakage and oil leakage are two definitions. Engine oil leakage is attributed to a common fault condition; engine oil leakage generally sees in and out of the skeleton seal, which is a relatively common condition. The key to oil leakage is that the engine oil has not been reduced rapidly, but a small amount of oil stains can be seen at the engine's airtightness, but no significant oil stains are found on the engine fender or the road surface.
Engine oil leakage
1. The engine oil pan gasket is damaged or the screw is loosened to leak oil; the engine oil sump drain plug gasket is destroyed, loosened and oil leaks
2. The engine support frame plate is deformed or the gasket sealing is not tightly closed, and the oil leaks
Engine oil leak
3. The sealing of the cylinder cover gasket is not tightly closed and the oil leaks
4. The front and rear frame seals of the engine crankshaft are damaged and the oil leaks; the rear cover of the cam bearing is not tightly closed and the oil leaks
5. Turbine leaks oil
Engine oil leak
6. The tightness of the oil heat pipe radiator is not tightly closed and the oil leaks
Note: Non-engine oil leaks will be confused:
1. When the oil is removed and replaced, the service staff did not carefully clean and tidy, which will lead to mistakenly thinking that the oil is leaking. This kind of oil stains are not discovered until a long time after the oil is changed, showing worn-out marks, dry and not bright. Liquid state.
2. If the oil is discharged too much, the working pressure meeting of the engine oil will leak some unnecessary engine oil according to the vent holes, and the oil is the same. It should be noted that the amount of engine oil added must be maintained within all normal scales. Excessive oil will not affect the engine. Good, unnecessary oil should be released.
3. If there is a small amount of oil stains around the engine, the first thing to check is whether it is old oil stains, and also to see if it is a trace analysis, if the oil is still not reduced-it is not easy to be distinguished as oil leakage, but only oil leakage. Need to keep watching.
