One is oil-free
Second, the oil circuit is blocked
Third, the body temperature is too high
Fourth, the load is too large.
If the machine is not very long or the age is not long, replace the spark plug and carburetor, and replace the piston ring after a long time.
Precautions before using the gasoline rock drill:
1. Check whether the gasoline in the fuel tank is sufficient.
2. Check the fuel valve and oil pipeline for oil leakage.
3. Check whether the oil dance is between the upper limit and the lower limit.
4. Check the oil quality of the engine oil to determine whether it needs to be replaced.
5. Check whether the starting battery voltage is above 12V, and observe whether there is damage or leakage.