What Causes the Automatic Sinking of the Luffing Cylinder?
1 Answers
The reasons for the automatic sinking of the luffing cylinder: aging of the hydraulic cylinder piston oil seal and oil cylinder leakage. The specific reasons are introduced below: Aging of the hydraulic cylinder piston oil seal: Due to the aging of the hydraulic cylinder piston oil seal, the sealing performance decreases, causing the hydraulic oil in the two chambers separated by the piston to mix. When the cylinder is vertically loaded or unloaded (when the cylinder is not in use), it will sink, but this sinking speed is very fast, which is an abnormal phenomenon. Oil cylinder leakage: When the oil cylinder is loaded but not in use, under normal circumstances, the piston oil seal cannot completely seal, or the control directional valve of the oil cylinder may also have leakage. However, the sinking caused by this leakage is relatively slow, which is a normal phenomenon.