检查断裂原因：需要检查卷帘门断裂的具体原因。可能是由于轴管断裂、螺栓松脱、脱钩脱轨或线路问题等。如果是轴管断裂或螺栓松脱，需要更换相同规格的轴管或螺栓。

　　Check the cause of the fracture: Firstly, it is necessary to investigate the specific reason for the fracture of the rolling shutter door. It may be due to shaft tube fracture, bolt loosening, decoupling derailment, or line problems. If the shaft tube is broken or the bolt is loose, it is necessary to replace it with a shaft tube or bolt of the same specification.

　　更换损坏部件：根据断裂的原因，更换损坏的部件。如果是轴管断裂，选择相同规格的轴管重新安装；如果是螺栓或穿钉螺丝断裂，选择相同型号的螺栓或螺丝重新固定。

　　Replace damaged parts: Replace the damaged parts according to the cause of the fracture. If the shaft tube is broken, choose a shaft tube of the same specification and reinstall it; If the bolt or screw is broken, choose the same type of bolt or screw to re fix it.

　　润滑维护：在维修完成后，建议在轴承和轴管处添加机油进行润滑，以防止卡住无法上升或下降。

　　Lubrication maintenance: After the repair is completed, it is recommended to add oil to the bearings and shaft pipes for lubrication to prevent them from getting stuck and unable to rise or fall.

　　检查线路：如果是脱钩脱轨或线路问题导致的断裂，需要检查相应的线路，重新连接或修复。

　　Check the line: If the breakage is caused by decoupling derailment or line problems, the corresponding line needs to be checked, reconnected or repaired.

　　维修：如果不确定如何操作，建议寻求人士的帮助，以确保和维修质量。

　　Professional maintenance: If unsure how to operate, it is recommended to seek the help of professionals to ensure safety and maintenance quality.

　　预防措施包括：

　　Preventive measures include:

　　定期检查：定期检查卷帘门的各个部件，特别是轴管、螺栓和线路，确保其处于良好状态。

　　Regular inspection: Regularly inspect all components of the rolling shutter door, especially the shaft tube, bolts, and wiring, to ensure that they are in good condition.

　　润滑保养：定期在轴承和轴管处添加机油，保持润滑，减少摩擦和磨损。

　　Lubrication and maintenance: Regularly add engine oil to the bearings and shaft pipes to maintain lubrication and reduce friction and wear.

　　维护：遇到问题及时联系维修人员进行处理，避免自行操作带来的风险。

　　Professional maintenance: Contact professional maintenance personnel in a timely manner when encountering problems to avoid risks caused by self operation.

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　　This article is assisted by Jinan Rolling Shutter Doors. For more related content, please click: http://www.jnzxmy.com I hope this article can be helpful to you. Thank you for reading!