When high-speed knitting machines are weaving, the main causes of failures and textile defects are more complicated. In order to facilitate maintenance, based on social experience, it can be summarized into the following aspects:
- The maintenance work is poor, which will cause serious damage to the parts during the long-running period.
- Due to the quality of raw materials.
- The offer and the stopper are not familiar with the actual operation.
- Weaving parts (such as knitting, brushes, shuttles, etc.) are of poor quality and unreasonable adjustments.
- The formulation of the product process is unscientific, such as the mismatch between the yarn count and the fuselage size.

Because of its portability, portability, multiple functions, and low market price, the high-speed knitting machine is favored by the majority of small and medium-sized enterprises and individual industrial and commercial households, and the sales of the knitting machine in the country continue to increase.
Therefore, many knitting machine consumers have a shallow grasp of the structure and characteristics of the knitting machine, and are often affected by some small common faults during use, and the floating ring is one of the common ones.
A floating circle refers to that at the beginning of loop formation, when knitting rises and retreats, due to various reasons, the old coil does not return to the needle bar inside the needle latch but is still placed on the needle latch. When knitting falls, the old coil Return to the needle hook again and cannot produce new coils, this situation is called a floating circle.