1. On site inspection of the wear of the inclined zipper machine head wheel axle;

2. Surface oil baking treatment: Use acetylene flame to apply surface oil baking treatment to the worn parts until there are no sparks splashing;

3. Welding positioning points: Weld positioning points at worn areas and use measuring tools for inspection;

4. Surface polishing treatment: Use a polishing machine to polish the worn parts to expose the original metal color;

5. Surface cleaning treatment: Clean and polish the repaired area with anhydrous ethanol to ensure cleanliness and dryness;

6. Mix the Sorei SD7101H material, and then apply the mixed material to the worn part of the bearing position;

7. Mix the Sore SD7400 material, and then apply the mixed material to the worn parts of the front and rear sealing parts;

8. Use an outer micrometer to measure and inspect the dimensional accuracy after repair;

9. Assemble the bearing housing and new bearings on site and install them in place.