The usage methods and daily maintenance key points of the control box for stage electric hoists are as follows: Usage Methods 1. **Preparatory Work**    - **Check the Power Supply**: Ensure that the voltage of the power supply connected to the control box is consistent with the voltage required by the control box, usually 380V or 220V, and the power supply is well - grounded to ensure safety.    - **Inspect the Equipment**: Check whether the appearance of the electric hoist and the control box is damaged, whether all connection parts are secure, and whether the operating components such as buttons and switches are flexible. 2. **Operation Start - up**    - **Main Power Switch**: Close the main power switch on the control box. At this time, the control box is powered on, and the power indicator light turns on.    - **Inching Operation**: Press the "Up" or "Down" inching button on the control box, and the electric hoist will run slowly in the corresponding direction, which is used to precisely adjust the position of the hoist. During inching operation, the finger should not leave the button. Once released, the electric hoist will stop immediately.    - **Continuous Operation**: Some control boxes are equipped with a continuous - operation switch or gear. After switching the switch to the continuous - operation gear, press the "Up" or "Down" button, and the electric hoist will run continuously until the "Stop" button is pressed or the travel limit position is reached. 3. **Operation Control**    - **Speed Adjustment**: Some control boxes have a speed - adjustment function. The running speed of the electric hoist can be adjusted within a certain range through a knob or button to meet different work requirements.    - **Emergency Stop Button**: During the running process, if any abnormal situation is detected, immediately press the red emergency stop button on the control box. The electric hoist will immediately cut off the power and stop running to avoid accidents. After the emergency stop button is pressed, it needs to be rotated clockwise to reset before normal operation can be resumed. 4. **Operation Shutdown**    - **Normal Shutdown**: After the electric hoist has completed its work task, press the "Stop" button to stop the operation of the electric hoist, and then turn off the main power switch.    - **Abnormal Shutdown**: If the electric hoist malfunctions or emits abnormal sounds or odors during operation, immediately press the "Stop" button or the emergency stop button, cut off the power, and notify professional maintenance personnel for inspection and repair. Daily Maintenance 1. **Cleaning Work**    - **Regular Cleaning**: Conduct external cleaning at least once a week. Use a clean soft cloth to wipe the shell of the control box to remove dust, oil stains, and debris, and keep the surface of the control box clean.    - **Internal Cleaning**: Open the cabinet door of the control box monthly or quarterly. Use dry compressed air or the cold - air setting of a hair dryer to blow away the dust and debris inside. Note that when cleaning the interior, the power must be cut off first, and the operation should be carried out in a power - off state. 2. **Component Inspection**    - **Buttons and Switches**: Check the flexibility and reliability of buttons and switches daily. When pressing a button, it should feel easy, without jamming or sticking, and the button should bounce back normally. At the same time, observe whether the markings on the buttons and switches are clear. If they are worn or blurred, replace or re - label them in a timely manner.    - **Indicator Lights**: Check whether the indicator lights work properly before each use. The power indicator light, running indicator light, etc. should accurately display the working status of the control box. If an indicator light is found not to be on or has abnormal brightness, replace the bulb or check the circuit in a timely manner.    - **Relays and Contactors**: Check whether the contacts of relays and contactors are ablated or oxidized monthly. If there is slight ablation, gently polish them with fine sandpaper. If the ablation is severe, replace the contacts or the relays and contactors in a timely manner. At the same time, check whether their coils are overheated and whether there are any abnormal sounds.    - **Wires and Cables**: Regularly check whether the wires and cables inside the control box are damaged, aged, or loose. If the outer skin of a wire is damaged, wrap it with insulating tape in a timely manner or replace the wire. For loose terminal connections, tighten them in a timely manner to ensure a secure connection. 3. **Function Testing**    - **Brake Testing**: Conduct a brake test of the electric hoist once a week. During the upward or downward movement of the electric hoist, press the "Stop" button to check whether the electric hoist can stop immediately and whether the braking distance is within the specified range.    - **Limit Testing**: Test the upper and lower limit functions of the electric hoist monthly. Run the electric hoist to a position close to the upper and lower limit positions to check whether the limit switches can act accurately to stop the operation of the electric hoist and prevent over - winding or over - unwinding accidents. 4. **Environmental Inspection**    - **Temperature and Humidity**: The control box should be installed in a dry and well - ventilated place. The ambient temperature should generally be between - 5°C and 40°C, and the relative humidity should not exceed 85%. If the ambient humidity is too high, consider installing a dehumidification device. When the temperature is too high, strengthen ventilation and heat dissipation.

   - **Surrounding Environment**: Check whether there is debris piled up around the control box and whether there are flammable or explosive items. Keep the passage around the control box unobstructed so that operations and maintenance can be carried out in a timely manner in case of an emergency.