The bad consequences of the scratches on the surface of the hole in the hydraulic cylinder and the quick repair method：
① The material scraps extruded from the scratched groove will be embedded in the seal. When the hydraulic cylinder is running, while damaging the working part of the seal, it may cause new scratches in the scratched area.
② Deteriorate the surface roughness of the inner wall of the cylinder, increase the friction, and easily cause the hydraulic cylinder to crawl.
③ Increase the internal leakage of the hydraulic cylinder and reduce the working efficiency of the hydraulic cylinder.
