The solutions to common electric flat car faults depend on the specific faults. Common ones include: excessive noise during operation, electric flat car no power display, construction hoist
temperature is too high, when transporting heavy objects, it cannot be restarted after stopping, etc. You can learn how to do it yourself. The solutions to common electric flat car faults depend on the specific faults. Common ones include: excessive noise during operation, electric flat car no power display, electric flat car temperature is too high, when transporting heavy objects, it cannot be restarted after stopping, etc. You can learn how to do it yourself. 1. Excessive noise during operation: 1. Electrical control cabinet failure: abnormal noise occurs in the control loop and generally emits 'hum' noise. Most of the contactors have malfunctions (such as poor contact of the contactor, inconsistent voltage level, magnetic The core is jammed, etc.), the faulty contactor should be overhauled. If it cannot be overhauled, it must be replaced. After treatment, the noise will be eliminated by itself. 2. failure: stop immediately, check whether the construction hoist is single-phase running, or the bearing is damaged, the output shaft is not correct, and the 'sweeping' faults will cause the electric flat car to have abnormal noises and different fault noises. The position, height, and sound are different. When single-phase is running, the entire electric flat car emits a regular 'hum' sound; when the bearing is damaged, it will emit a 'cock-cock' sound in the vicinity of the bearing. When the output axis is not correct, or the electric flat car slightly sweeps the bore, the entire electric flat car emits a very high 'hum' sound, accompanied by a sharp and piercing sound from time to time. In short, according to the difference in noise, the fault should be found and repaired item by item to restore the normal performance of the electric flat car. When the electric flat car is not dealt with, the use of the electric flat car is prohibited. 3. Gearbox failure: stop and check, first determine whether the gearbox or bearing of the reducer has been lubricated before use, and whether the lubricating oil is regularly replaced during use. If it is not lubricated as required, the reducer will not only produce excessively high 'Buzzing' can also cause excessive wear or damage to gears and bearings. 2. The electric flat car has no power display 1. No power: Whether the electric system is transmitting power to the electric flat car, generally use a test pen to test, if there is no power, wait until the power is turned on before working. 2. The voltage is too low: the terminal voltage of the electric flat car is more than 10% lower than the rated voltage, and the starting torque of the electric flat car is too small, so that the electric flat car cannot move and cannot work. When checking, use a multimeter or a voltmeter to measure the electric The input voltage of the flat car. 3. The temperature of the electric flat car is too high: 1. Overload use: overloading causes the electric flat car to heat up. Long-term overload will burn the electric flat car. Therefore, the load of the flat car must be within the rated load range. 2. The bearing of the electric flat car is damaged: replace the bearing of the construction hoist. 3. The work system is not stipulated: when using it, it should work strictly in accordance with the work system of the electric flat car. 4. When transporting heavy objects, it cannot be restarted after stopping: 1. The system voltage is too low or fluctuates too much: wait for the electric flat car to return to normal voltage before starting. 2. Phase lack of electric flat car: check the number of power phases. There are many common electric flat cars that have a lot of faults, and they are easy to repair. Do it yourself and change some parts. But as long as you encounter problems you don't understand, please contact our factory directly for repairs.
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