Cause six: The piston rod of the cutting machine is strained
1. Dust ring aging, failure to penetrate dirt such as sand chips, etc.
2. The cooperation between the guide sleeve and the piston rod is too tight, which will cause the heating surface to overheat, causing the chromium layer on the surface of the piston rod to fall off and cause injury.
1. Clean and replace the dust ring, repair the damaged surface of the piston rod
2. Check and clean. Use a scraper to repair the inner diameter of the guide sleeve to achieve the matching clearance.