Many times, when encountering unexpected situations, we may appear busy and disorganized. The reason is very simple, because we did not prepare adequately in advance and did not prepare for emergency plans when encountering some unexpected situations. As the saying goes, opportunities are reserved for those who are prepared.

　　The same applies when a safety accident occurs with a wire rope electric hoist. Be prepared and take precautions, so as not to be hasty. After the wire rope electric hoist is started, the motor does not rotate and cannot lift heavy objects. The factors that need to be considered include excessive load bearing, lower voltage than rated voltage, electrical failure, broken or poor contact of wires, rust and bite between the brake wheel and rear cover, inability to detach the brake wheel, and motor cleaning.

　　The corresponding treatment methods include: overloading is strictly prohibited, continuing to use after the voltage returns to normal, repairing electrical appliances and circuits, removing brake wheels, cleaning corroded surfaces, and removing and replacing support rings. Unreliable braking and sliding distance exceeding specified requirements. It is necessary to consider reducing spring pressure, poor contact between the brake ring and the conical surface of the rear end cover, oil stains on the brake surface, loosening of the brake ring, fatigue of the pressure spring, ineffective or stuck coupling due to large friction loss of the brake ring or other reasons.

　　The solution is to repair or replace the brake ring, remove the brake ring and rear end cover for grinding, remove the brake surface for cleaning, replace the brake ring, replace the spring, and check the coupling connection part. If the temperature rise of the wire rope electric hoist motor is too high, it is necessary to consider whether there is overload use, frequent operation, or too small brake clearance, and the brake ring is not fully disengaged during operation, which is equivalent to adding load. It should be noted that overloaded use of wire rope electric hoists is strictly prohibited. If used too frequently, a certain period of rest is required. The brake clearance is too small, just adjust it directly. If the reducer makes too much noise, it is necessary to consider whether it is poorly lubricated, whether the gears are excessively worn or damaged, and whether the bearings are damaged. Disassemble it for maintenance.

　　When starting the wire rope electric hoist, there is a buzzing sound in the motor, usually due to a lack of phase in the power supply and motor, or poor contact with the AC contactor. At this time, simply check the circuit and replace the contactor. After starting the wire rope electric hoist, it cannot be stopped. It is usually caused by the welding of the AC contactor contact. The main power supply should be quickly cut off, and the AC contactor should be disassembled for inspection or replaced. The frequent oil leakage of the reducer is caused by poor or damaged assembly of the sealing ring between the box and the cover, or the failure to tighten the connecting screws. It is necessary to remove for maintenance, replace the sealing ring, or tighten the screws. Understanding the safety accident handling methods for these wire rope electric hoists can avoid confusion and quickly handle safety accidents, achieving twice the result with half the effort.