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Repair methods for common faults of electric operating table

2018-10-10

1. If there is no forward tilting action and other actions are present, then the compression pump is working normally, but the corresponding membrane switch is faulty or the corresponding solenoid valve is faulty. There are generally two ways to judge the quality of solenoid valves. One is to measure the resistance with a three-meter, the other is to use metal to see if there is suction. Of course, if the solenoid valve pulls in action is normal. The above-mentioned problems can also occur when the oil circuit is blocked. If there is not only no forward tilting action, but also no other actions, then the compression pump is malfunctioning. First, check whether the voltage on the compression pump is present. Is the resistance of the compression pump normal with a three-meter meter? If the foregoing is normal, the commutation capacitor is generally invalid.

2. There is movement in one direction of the electric operating table, but no movement in the other direction. The unilateral non-action failure is generally caused by the electromagnetic directional valve. The electromagnetic reversing valve failure may be caused by a bad control circuit, or the reversing valve may be mechanically stuck. The specific inspection method is to first measure whether the directional valve has voltage. If there is voltage, disassemble and clean the reversing valve. Due to long-term use, if there is any small impurities on the movable shaft of the interrogation valve, the shaft will be frayed and jammed, causing the operating table to move in only one direction.

3. When the operating table is in use, it will automatically drop down, but the speed is very slow. This situation occurs more frequently in mechanical operating tables, mainly due to failure of the lift pump. After the operating table is used for several years, very small impurities may stay in the oil inlet valve port, causing a small internal leakage. The solution is to disassemble the lift pump and clean it with gasoline, especially to check the oil inlet valve. After washing, add clean oil again.

4. When the operating table is in use, it will automatically drop down, the speed is faster, and there is vibration. This kind of failure is a problem with the inner wall of the lifting oil pipe. Long-term up and down movements, if there is a small amount of impurities on the leather bowl. Sometimes the inner wall of the tubing will be pulled out of the scratches. Over time, the scratches will become deeper and deeper and the above-mentioned faults will occur. The solution is to replace the lifting oil pipe.

5. The backplane will automatically lower during the operation, but the speed is 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 long-term use, sometimes impurities will collect at the solenoid valve port. The solution is to disassemble the solenoid valve and clean it with gasoline. It should be noted that due to the high pressure of the back plate, the general electric operating table is designed with two solenoid valves in series, and the two must be cleaned together when cleaning.

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