1: the polishing barrel leaks, the bottom thorn has the polishing needle to be able to use the pliers to remove, adds the glue.
2: the timer doesn't flicker, and it can't be pressed according to the start switch.
When the water in the 3: polishing bucket is overheated, please change the water in time (the normal water temperature range is 50 degrees C).
4: machine vibration is large, check whether each corner of the machine is in the force position, adjust the length.
5: indicate normal, but the machine doesn't work, check whether the voltage is lower than 220V, and whether the polishing needle is placed too much.