1. The hydraulic oil in the fuel tank is insufficient. The suction of the oil pump or the dirt of the oil filter will cause the oil pump to be short of oil, causing the air bubbles in the oil to leak and hit the blade to generate noise. The solution is to check the oil quantity and prevent the air from being inhaled. Clean the oil filter.
2. The viscosity of the hydraulic oil is high, and the flow resistance is increased. It is necessary to replace the suitable hydraulic oil.
3. Due to the damage of the bearing or blade of the oil pump or motor, the concentricity deviation of the coupling causes noise, and the concentricity or replacement parts must be adjusted. 4, the directional valve reaction is not effective but the function is still, such as valve core wear, internal leakage, burr blocking, movement is not flexible, solenoid valve failure due to insufficient current will also produce noise. The solution is to clean the valve core, the valve core must be replaced with new parts, and the current must be stable and sufficient.
5. The hydraulic components are damaged or the oil pipelines are blocked, causing noise when the hydraulic oil flows at high speed.
6. If the mechanical part is faulty, the bearing is worn or the machinery lacks lubricating oil or the parts are loose, the reason should be found to fasten or replace the parts.
Ensure that there is enough lubricant.
Unstable or unsatisfactory production of the product In the stable production cycle, the quality of the finished product is unstable, which may be caused by the wear or adjustment of the mechanical parts.
1. Wear of screw, check ring and barrel.
2. The inner seal of the injection cylinder is damaged and internal leakage occurs.
3. The temperature control of the heating cylinder is unstable.
4. The pressure and speed control are partially abnormal.
