1. The electric operating table automatically drops during use, or the speed is very slow. This situation occurs more frequently in the case of mechanical operating tables, which means that this is a malfunction of the lift pump. If the electric operating table has been used for too long, very small impurities may stay on the surface of the oil inlet valve port, causing a small internal leakage. The way to deal with it is to disassemble the lift pump and clean it with gasoline. Pay attention to the inspection of the oil inlet valve. After cleaning, add clean oil again.
2. If the electric operating table cannot operate the forward tilting action, and the rest of the action is operating normally, it proves that the working state of the compression pump is normal, but the corresponding membrane switch is faulty or the corresponding solenoid valve is faulty. . There are generally two aspects to distinguish between good and bad solenoid valves: one is to measure resistance with a three-meter, and the other is to use metal to see if there is suction. If there is no problem with the solenoid valve closing action. The blockage of the oil circuit can also cause the above-mentioned problems. If it is not just that it does not lean forward, but the other actions are not, then it can be concluded that the compression pump is malfunctioning. Solution First, check whether the voltage on the compression pump is normal, and use a three-purpose meter to measure the resistance of the compression pump. If the foregoing is normal, this means that the commutation capacitor is invalid.
3. The backplate will automatically fall down during the operation, or the speed will be very slow. This kind of failure is mainly caused by the internal leakage of the solenoid valve, which generally occurs in the electric operating table. After a long time of use, impurities tend to gather at the solenoid valve port. The way to deal with it is to disassemble the solenoid valve and clean it with gasoline. It should be noted that because the back plate pressure is too high, most electric operating tables are designed with two solenoid valves in series, and two of them must be cleaned when cleaning.
4. The electric operating table will automatically drop during use, or the speed will be faster, and there will be vibrations. This failure is manifested by a problem with the inner wall of the lifting oil pipe. Long time up and down movement, if there are some small impurities on the inner wall of the tubing. Occasionally, the inner wall of the tubing will be pulled out of the scratches. After a long time, the scratches will become deeper and deeper and the above-mentioned failure will occur. The way to deal with it is to exchange the lifting oil pipe.
5. There are actions in one direction of the electric operating table, but no actions in the other direction. The failure of unilateral non-action is usually caused by the electromagnetic reversing valve. The electromagnetic reversing valve failure may be caused by a bad control circuit, or the reversing valve may be mechanically stuck. The correct self-checking method is to first measure whether the directional valve has voltage. If there is voltage, try to disassemble the reversing valve and clean it. Because of long-term use without maintenance, if there is a little foreign matter on the movable shaft of the interrogation valve, the shaft will be pulled into a stuck state, and the operating table will only behave in one direction.
Post time: Dec-27-2021