Common faults, causes, and troubleshooting methods of vacuum pumps.
Oil leakage and fuel injection
Cause of occurrence:
Damaged or incorrectly assembled sealing rings, oil drain holes, and other parts of the shaft.
Excessive intake pressure.
Excessive fuel consumption leads to fuel injection.
The oil baffle under the exhaust hood is installed incorrectly, causing fuel injection.
Solution:
Replace the sealing ring or reassemble, drain some oil, and reassemble.
