1, replace the bearings, new bearings should be carefully checked, while the shaft and rotor bearing bore and careful examination;

        2, the assembly and disassembly of the bearing, the strict implementation of the maintenance process, careful operation, avoid bearing damage due to improper assembly and disassembly;

        3, fuel oil changes on time, to ensure the bearing condition is always in good condition;

        4, the operation carefully checked and found hidden faults, promptly eliminated.