Connecting shaft Rotate 45° from left to right and slowly insert the connecting shaft to ensure that there is no gap in the connection and then fix it with screws (if there is a gap, please reinstall it). Screw rod We will install the screw rod accessories before shipment, you only need to push the screw rod and fit the connecting shaft (if there is a gap, please install the gasket). The tray Install the tray steadily and use it with the push rod (the material in the tray needs to be slowly added to the connecting shaft to ensure that the screw rod is not blocked).