I. Regular Cleaning

1. Surface Cleaning

Use a clean, soft cloth to gently wipe the metal surface of the door holder to remove dust and stains. For stubborn stains, use a small amount of mild detergent, but avoid using abrasives or strong acidic or alkaline detergents to prevent damage to the surface coating.

2. Rubber Pad Cleaning

The rubber pad at the bottom of the door holder easily accumulates dust and debris, which can affect suction performance. Clean the rubber pad regularly with a damp cloth and ensure it is dry before use.

II. Lubrication and Maintenance

1. Lubrication of Moving Parts

Moving parts of the door holder, such as the hinge, require regular lubrication. Use a light lubricant or silicone-based lubricant. Gently apply the hinge to the door holder and open and close it several times to ensure even distribution of the lubricant.

2. Avoid Over-Lubrication

Be careful not to over-lubricate, as this can cause the lubricant to leak out, stain the floor, or affect suction performance.

III. Inspection and Adjustment

1. Regularly Check the Mounting Screws

Check the door holder's mounting screws for looseness. If you find any loose screws, tighten them immediately with a screwdriver to ensure the door catch is securely installed.

2. Checking the Rubber Pad for Wear

Regularly check the rubber pad for wear. If the rubber pad is severely worn, replace it promptly to ensure the door catch maintains its suction force.

IV. Storage and Environment

1. Storage Environment

If the door catch needs to be stored for an extended period, keep it in a dry, well-ventilated area away from moisture and corrosive gases.

2. Temperature Adaptability

Extreme temperatures may affect the performance of the door catch. Avoid using it in high or low temperatures to extend its lifespan.

V. Emergency Procedures

1. Temporary Troubleshooting

If the door catch experiences a temporary malfunction (such as decreased suction force), first check the rubber pad for cleanliness or try reinstalling it to ensure it maintains firm contact with the floor.

2. Damaged Component Replacement

If any door catch component (such as the rubber pad or hinge) is damaged, contact the manufacturer or a professional repair technician immediately for replacement to prevent any impact on safety. 

Through the above maintenance measures, you can effectively extend the service life of high-quality door stops, maintain their optimal performance, and provide continuous convenience and safety for your living and working environment.