Washing machine motor operation noise is too big how to deal with?

The processing method of noise during operation of the washing machine is as follows:

1 the whole machine is not installed in the level or the holder is not fixed, the need to install and fix;

2. The impeller installation is not correct, rotating touch cleaning washing barrel wall, the loosen spindle sleeve nut, wheel correction and fixed on the line;

3 washing machine used for a long time, shaft and bearing wear is too large, need to replace the impeller shaft or bearing;

4 washing machine with automatic drain valve, the gap between the traction magnet is too large, the need to repair the traction magnet;

5 motor base or multiple hub bolt looseness, need to loose bolts fastening;

6 drive belt assembly is too tight, adjust it to make the drive belt tightness appropriate.