How to reduce vibration and noise in washing machinery

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After being in use for a long time, washing machinery can develop various abnormal vibrations and noises due to mechanical wear, lack of lubrication, component aging, and spring fatigue deformation. If not repaired in time, it will cause the components of the washing machine to wear out more rapidly or even get damaged. In fact, vibration and noise can be eliminated or reduced through appropriate adjustments and simple repairs. 1. When doing laundry, the machine makes a “bang bang” sound. This fault is usually caused by a collision between the washing tub and the casing, or by an uneven surface on which the washing machine is placed, or by the fact that its four feet do not make proper contact with the ground. At this point, it is necessary to adjust the center of gravity of the washing machine to ensure it is stable, or to place appropriate shims under the four feet. 2. When washing clothes, the drum makes a \"clattering\" friction sound as it rotates. During maintenance, water can be added for inspection without putting in clothes. If there is still a grinding friction sound while the drum is rotating, it is due to friction between the rotating drum and the bottom of the washing tub; adding more clothes will make the noise even louder. The cause of the problem may be loose screws on the impeller; the impeller can be removed, and a washer of appropriate thickness can be placed at the bottom of the shaft to increase the gap between the impeller and the bottom of the tank. Eliminate the collision or friction between the two. If the outer rim of the impeller rubs against the washing tub, the impeller should be removed, repaired as needed, and then reinstalled. 3. When the motor is rotating, the drive belt makes a \"crackling\" sound. This fault is caused by a loose drive belt. During maintenance, the fastening screws of the motor frame can be loosened, the motor can be rotated away from the pulley shaft to tension the drive belt, and then the fastening screws of the frame can be tightened again.