Product disqualification rate caused by machine itself shall be no more than1 （ phenomenon of disqualification are as follows : incorrect winding circle number 、 inter - circle short circuit 、 wire fail to embed into the slot ， enameled wire not hitched the commutator ' s hook ， or thrum and wire ends loosens after being pulled ） 因机器本身导致的产品不合格率1 （不合格现象为绕线匝数不准、匝间短路、线未嵌入槽内，漆包线未挂入换向器挂钩上，线头或线尾拉断后松脱） 。
