In addition to the general maintenance precautions for electric hoists, stage electric hoists have some additional key points to pay attention to due to the of their usage scenarios. The following is a detailed description: Safety Aspects - Enhanced Fall Prevention Measures: Stage electric hoists are usually used to suspend stage equipment such as lights, curtains, and props. In case of a fall accident, the consequences can be extremely serious. Besides the regular safety measures during maintenance, a safety net or protective pad should be set up below to prevent parts or tools from falling and injuring people or damaging stage equipment during the maintenance process. - Coordination with Stage Activities: If maintenance is carried out in places like theaters where there are frequent performance activities, it must be closely coordinated with the performance arrangements. Determine the maintenance time window in advance to avoid conflicts with performances, rehearsals, etc. Maintenance work that may affect the normal operation of stage equipment is strictly prohibited during performances. - Electromagnetic Interference Protection: There are a large number of electronic devices such as lights and audio systems on the stage. When maintaining the electric hoist, pay attention to preventing electromagnetic interference. Avoid using tools or equipment that may generate strong electromagnetic interference to prevent affecting the normal operation of other electronic devices on the stage. Maintenance Operation Aspects - Synchronization Check: Many stage electric hoists work in coordination with multiple units to ensure the smooth lifting, lowering, and movement of stage equipment. After maintenance, especially check the synchronization among multiple electric hoists to ensure that the speed and stroke of each hoist are consistent during operation, avoiding tilting, distortion, or even damage to the stage equipment due to non - synchronization. - Positioning Accuracy Calibration: Stage electric hoists require precise positioning to meet the requirements of stage performances. During maintenance, calibrate the positioning system of the electric hoist to ensure that it can accurately stop at the preset position, and the error should be controlled within the allowable range. - Appearance and Protection Inspection: Stage electric hoists are usually within the sight of the audience. Check whether there is any damage, paint peeling, etc. that affect the appearance. At the same time, ensure that its protective devices such as the housing and cover are intact, which can not only protect the internal components but also prevent people from coming into contact with dangerous parts. - Noise Control: Stage performances have high requirements for noise. During maintenance, check whether the running noise of the electric hoist is within the normal range. Focus on checking components that generate noise, such as motors and reducers. If there is abnormal noise, find the cause in a timely manner and repair or replace them. Compatibility with the Stage System - Compatibility with the Control System: The control system of the stage electric hoist is usually connected to the overall control system of the stage. During maintenance, ensure that the control system of the electric hoist is compatible with the control systems of other stage equipment and the communication is normal. Check whether the transmission of control signals is stable and whether there is any interference or misoperation.

- Match with the Stage Mechanical Structure: The installation and operation of the stage electric hoist are closely related to the mechanical structure of the stage. During maintenance, check whether the connection parts between the electric hoist and the stage are firm and whether the installation position is correct to ensure that it matches the mechanical structure of the stage and does not impose additional load or impact on the stage structure.