1. Align the edges of the fabric to ensure that there are no extra lines or twisted parts.

2. Thread the tail of the fabric into the needle receiver of the machine. This step usually requires putting the tail of the fabric into a special groove or hook, so that the machine can grasp and handle it correctly.

3. Adjust the parameters of the needle receiving device according to the instructions or instructions of the machine.

4. Start the needle collection process. This is usually done by pressing the start button or similar control device on the machine. The machine will automatically pull in the tail of the fabric and tighten it through a series of needles and hooks.

5. Monitor the needle shrinking process to ensure that there are no faults or problems. If you find any abnormal situation, such as disconnection, jamming, etc. You should stop the machine and check it at once.

6. When the needle retracting process is completed, the machine will automatically stop.

7. Arrange the collected stitches with other parts of the fabric to ensure the overall appearance is neat and beautiful.