May 09, 2024

Where is the root cause of the problem of the jumper line?

When we use the polyester thread on the sewing machine, I believe that everyone has encountered the jumper. In fact, the jumper is mainly caused by the hook of the machine at the bottom of the machine. Sliding to the upper line or hooking back, and then the situation that the line cannot be continuously formed. That happened, how do we check it?

Where is the root cause of the problem of the jumper line?
Where is the root cause of the problem of the jumper line?

1. The problem of the line itself: check whether the quality of the line is qualified, and at the same time, see if the needle it chooses matches.
2. Needle problem: Check if the needle has a fuse due to needle heat.
3. Other problems: Check whether the needle and needle plate are installed firmly, and check whether the upper thread passes through the bend.

Please indicate the source.

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