Washing machine dehydration system concentricity inspection method

The invention discloses a washing machine dehydration system concentricity inspection method comprising the following steps that S1: inspection of an internal dehydration barrel in the non-operation state and the operation state is performed; S2: if the internal dehydration barrel stably operates in the test process of the S1 step, whether the deviation of the internal dehydration barrel meets the requirements is inspected by using a deviation test device, and inspection ends if the inspection result is yes; S3: if the situation of severe wall hitting occurs in the test process of the S1 step, the problems of verticality of a washing machine dehydration shaft and length and elasticity of a damping spring are inspected, and the inspection ends if the requirements are not met and the parts are delivered to the repair line; and S4: if the problems do not exist in the S3 step or the tested deviation of the S2 step does not meet the requirements, the parts of the washing machine are respectively inspected and then