发布时间:2025-01-21 12:04:49
杰克c4锁边机停针位调法
1、如果是因为跳针出现问题时,可以给它更换新的跳针。
2、假如是弯针在走动时出现了一定缝隙,这时可以把螺丝调节一下,把它们固定完整就可以。
3、接着看一下,它们的上弯针及机针的位置有没有弯曲的情况,如果有要把它们给调整一下
六一庆装扮教室如何做挂条花灯装饰物,要用平时生活废品做.变废为宝,急
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