I'm making a warp knitting machine, the kind that weaves net cloth! How to repair the broken yarn?

Pay attention to whether the yarn often breaks in one place or is irregular everywhere. If the yarn is partially broken, change the yarn, or hook the yarn with the left hand. If the yarn is broken everywhere, please pay attention to the quality of the head yarn; Ask the mechanic to check the needle distance and traverse time of the machine guide rod. Whether the yarn guide needle is worn.