it is risky to disassemble the outdoor unit. please disassemble it under the guarantee of safe disassembly by professional air conditioning and refrigeration maintenance personnel. after unscrewing the connecting lock nut of the external machine, the prepared sealing sodium shall be used to screw the thread protecting the connecting joint of the external machine. use a wrench to loosen the fixing screw of the outer machine foot. when putting down the outdoor unit after disassembly, it is best to hang it with ropes. pay attention to balance during unloading, avoid vibration and collision, and pay attention to safety. slowly straighten the connecting pipe of the outdoor air conditioner, and seal the four ports of the connecting pipe with four prepared plugs to prevent the entry of dust and water in the air. the plug shall be fixed, and finally it shall be tied with a plastic bag and coiled for easy handling.