Generally, the door shaft falls off, which is a general maintenance difficulty and easy to maintain:

If the door shaft screw is loose, it can be repaired by referring to the fixing method of another door shaft;

Other forms are difficult, and the repair department can carry out targeted repairs:

If the door frame is corroded and rotted, you can replace it with a new one with tin sheet, stick it with super glue, and punch holes to install the door shaft. Apply new paint.

Step 1: Remove the embroidery frame, but pay attention to the door anti-dew pipeline when removing it, and cut off some rusty parts with the angle grinder.

2. Cut the area iron plate with tin sheet to make its shape match the rusty part, and reserve a certain size for punching.

3: After completion, punch holes in the parts and nail rivets.

4. Use sandpaper to handle the corner burrs at the repaired parts of the box, brush the primer, brush the primer on the brush and the box after drying, and brush the paint with the same or similar color as the box after drying.