Answer: (1) Fault phenomenon. Under normal circumstances, the vibration generated by the screw air compressor during operation is very small, but in some special cases, the vibration will increase or exceed the standard.
(2) Cause analysis.
1) Insufficient lubrication oil supply;
2) Bearing wear;
3) Large deviation of the wheel center;
4) Unqualified rotor clearance;
5) Oil filter blockage;
6) Loose anchor bolts.
(3) Elimination method.
1) Check whether the oil supply regulating door is fully opened and whether the oil cut-off solenoid valve is faulty;
2) Check or replace the bearing;
3) Readjust;
4) Check whether the rotor is deformed;
5) Check whether the oil pressure is normal;
6) Adjust and tighten the anchor bolts.
