The electric hoist of the climbing frame cannot be started during use, or the electric hoist of the climbing frame cannot be started when it is used. How to deal with the main reasons are as follows: First check whether the power fuse is burnt out. If it is a single-phase start after disconnecting one phase, the motor , The starting torque is zero, the motor can not rotate, you should replace enough fuse, secondly, if the grid voltage is too low, the starting torque is proportional to the square of the voltage. Climbing frame electric hoist is a special lifting equipment installed on overhead cranes and gantry cranes. The electric hoist has the characteristics of small size, light weight, simple operation and convenient use. It is used in industrial and mining enterprises, storage, docks and other places. The acceleration torque cannot overcome the load torque and cannot reach the working speed. Therefore, the grid voltage should be appropriately increased. Check the stator winding phase short circuit, ground or open circuit, the winding ground should appear on the lead ground plate, and the junction box should be opened and checked. When the circuit is disconnected, not only the motor but also the wiring of the control equipment should be checked first. If it is because of poor contact of the AC contactor that the line cannot be connected, the contactor of the contactor must be smoothed with sandpaper. If a blocking phenomenon is found, the suction and disconnection of the iron core should also be checked first, and the contact needs to be replaced if necessary. Device. If the load is too large or the transmission machinery is faulty: generally, the electric power of the matching electric hoist of the climbing frame is reasonable, and the lifting weight cannot be overloaded. If the electric hoist of the climbing frame cannot rotate, the load should be removed first. If the motor can start normally , Indicating that the gearbox or transmission mechanism is faulty, the dragged mechanism should be checked to clear the fault.