Only normal oil pressure can ensure that the oil is delivered to all friction surfaces of the engine. Too high or too low will affect the normal operation of the engine, and even cause damage to the engine parts. Therefore, when the oil lamp alarms, the machine should be stopped immediately to find the cause, and the work can be continued after the fault is eliminated.
The following reasons may cause the oil light to alarm:
1. The oil volume is insufficient, which reduces the oil volume of the oil pump or the oil is not pumped due to the air intake, resulting in the oil Pressure drop;
2. The engine temperature is too high, it is easy to make the oil thinner, and the oil pressure drops due to a large amount of loss from the fitting clearance;
3. When the oil pump parts are damaged Or when the gap is too large due to wear, assembly and other problems, it will cause the oil pump to produce oil or insufficient oil; Too tight will increase the oil pressure, too loose will reduce the oil pressure;
5. The oil filter and the oil suction plate are blocked, which will also reduce the oil pressure;
6. The oil return valve is damaged or fails: if the spring of the main oil return valve is fatigued and softened or adjusted improperly, the mating surface of the valve seat and the steel ball is worn or blocked by dirt and is not tightly closed, the oil return volume will increase significantly, the main The oil pressure of the oil passage will also decrease;
7. Improper selection of oil: if the wrong oil is used or the grade is not selected properly, the oil will leak due to the low viscosity of the oil when the engine is running. Lower; 8. There is oil leakage and blockage in the oil pipeline.