Repair process: 1, with oxygen - acetylene flame grilled scratched site (temperature control, hydraulic cylinders, avoid surface annealing), Hebei cylinder, the metal surface oil seepage perennial baked, grilled to no sparks. 2, the scratch area with angle grinder surface treatment, double-acting cylinders, grinding depth 1 mm or more, and polished grooves along the rail, preferably dovetail. Drilling deeper scratches ends, change the forces. 3, with cotton wool dipped in acetone or ethanol to clean the surface. The hydraulic cylinder is in the hydraulic system can be converted to mechanical energy actuators. Whose failure can be substantially summarized as cylinder malfunction, load and inability to push the piston sliding or crawling like. As the hydraulic cylinder failure caused by equipment downtime common occurrences, therefore, we should pay attention to the hydraulic cylinders troubleshooting and maintenance work. 1, malfunction or operation failure 2, the work can not drive the load 3, a piston sliding or crawling adverse consequences cylinder 4. The cylinder bore surface scratches Hebei hydraulic cylinder _ _ Lu Hydraulic (high-quality businesses) by the Texas Lu hydraulic equipment plant to provide. Texas Lu force hydraulic machinery plant (www.luliyeya.com) strong, credible, in Dezhou hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lu Hydraulic and you hand into the brilliant, for a better future!