Maintaining a one-head big size embroidery machine open frame is essential to ensure its smooth operation, longevity, and production quality. Here are some important points to pay attention to when maintaining this type of embroidery machine:

1. Cleaning: Regularly clean the embroidery machine to remove dust, lint, and debris that may accumulate during operation. Pay special attention to the needle area, bobbin case, and thread paths.

2. Oil and Lubrication: Follow the manufacturer's guidelines for oiling and lubricating the machine. Use the recommended lubricants and oiling points to ensure smooth movement and prevent excessive wear.

3. Tension Adjustment: Check and adjust the thread tensions as needed to ensure proper stitching and avoid thread breakage or looping.

4. Needle Replacement: Replace needles regularly, as dull or damaged needles can result in poor stitching quality.

5. Bobbin Maintenance: Clean the bobbin area and replace bobbins as necessary to avoid thread jams and tension issues.

6. Check Embroidery Hoops: Inspect the embroidery hoops for any signs of wear or damage. Damaged hoops can affect design accuracy and fabric stability during embroidery.

7. Thread Path Inspection: Regularly check the thread path for any obstructions or tangles that may interfere with the smooth flow of thread.

8. Backup Data: If your embroidery machine is computerized and stores designs digitally, regularly back up your embroidery files and settings to prevent data loss.

9. Calibration: Periodically calibrate the machine to ensure accurate positioning and stitching.

10. Tighten Screws and Bolts: Regularly check and tighten all screws and bolts on the machine to prevent loosening during operation.

11. Electrical Components: Inspect the electrical components, such as wiring and connectors, for any signs of wear or damage. Address any issues immediately to prevent electrical problems.