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The solution to the inability of explosion-proof electric hoists to rise

releaseTime:2024-05-15 10:11:10source:Mu TiannumberOfPageViews:0

Possible solutions to the problem of explosion-proof electric hoists not being able to rise include the following:

Check the power supply and circuits:

Ensure that the power socket is properly connected to the power source and provide sufficient power supply for the electric hoist.

Check if the control box of the electric hoist has electricity. If there is no electricity, it may be that the fuse inside the control box is burnt out and needs to be replaced with a new one.

Check if the control circuit is malfunctioning, such as damaged control transformer, disconnected or damaged thermal relay, damaged fuse or contactor, poor contact of plug-in, etc. It is necessary to investigate whether there is any leakage and take corresponding measures to eliminate it. Check whether the three-phase power supply (including the neutral line) is normal before reconnecting.

Check the motor:

The motor is the power source for the lifting of electric hoists. If the motor malfunctions, such as overload, broken motor winding, or damaged armature, the basket cannot be lifted or lowered. Need to find the fault point for repair or replacement of the motor.

Check if the electromagnetic brake of the motor is malfunctioning. If it fails, replace the electromagnetic brake.

Check the sensitivity difference of the motor brake of the motor, and if necessary, adjust the gap of the motor brake or replace the spring of the centrifugal speed limiter.

Check the ropes and lifting mechanism:

The lifting rope of the hanging basket carries the weight of the basket. If the rope has problems such as wear, breakage, or jamming, the basket cannot be lifted or lowered. It is necessary to check the condition of the rope and replace worn or broken ropes in a timely manner.

Check if the lifting rope of the electric hoist is loose or tangled. If there is any looseness or knot, adjust the tension of the lifting rope or untie the knot.

Check if the lifting mechanism of the electric hoist is poorly lubricated. If the lubrication is poor, it is necessary to add appropriate lubricant to the lifting mechanism.

Check safety devices:

The safety devices of the hanging basket mainly include lifting chains, safety ropes, limiters, overload protectors, etc. If there is a problem with the safety device, the basket cannot be lifted or lowered. It is necessary to check whether each safety device is working properly and replace damaged parts in a timely manner.

Seeking professional repair:

If the above steps cannot solve the problem, it is recommended to contact professional maintenance personnel for inspection and repair.

Before conducting any maintenance or inspection, please ensure that the power supply to the electric hoist has been cut off to avoid electric shock accidents. At the same time, to ensure operational safety, it is recommended that maintenance and inspection be carried out by professional personnel.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoistwire rope electric hoistHand chain hoist, lever hoist, pneumatic hoist and other lifting equipment    
   

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