安装不当或不供油 |
楼上师傅高解 |
同意二楼师傅 |
747换了90以上的皮带轮很多都会这样, 或者机肚里的衣车油质量不好,或者上弯针连杆活动不顺畅, |
球头光洁度不好 或者安装灵活度不够 |
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