1. Surface oil baking: Use acetylene flame to surface oil the worn bearing position and shaft neck;

2. Welding positioning points: Weld positioning points at worn bearing positions and use measuring tools for inspection;

3. Surface treatment: Use a polishing machine to polish the worn parts;

4. Cleaning: Clean the polished bearing position with anhydrous ethanol;

5. After blending the SD7101H material, use the on-site repair process of Sorei Industry for repair;

6. Use SD7400 material for on-site repair of worn front and rear sealing parts;

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

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