(1) If the brushed motor uses a universal meter, it proves that the motor is good and bad.
（2) The brushless motor eight-to-line is black red, yellow, green, blue, yellow, yellow, green, blue, and blue. The black line of the motor is used. The black line of the motor is used to prevent the motor from being between 650 and 750. no problem
(3) Electric bicycle brush motor generally replace the carbon brush before opening. Note that the friction between the changer and the carbon brush is not the same. If you use the sandpaper, the friction changer and the carbon brush keep the same distance.
(3) Open the motor, pay attention to the motor cable package, do not rub the wire package to avoid damage to the wire package.
Do not use iron to stick magnetic steel to avoid magnetic steel cracking.
(4) Brushless motor replacement Hall should pay attention to the Hall line connection. For the first time, it is best to get the wire down and weld it to one to avoid welding mis-welding. Use 502 to stick with AB glue. Tight to avoid unsaturation
(5) Change the magnetic steel and magnetize the steel. Pay attention to the glue on the top of the spindle and the magnetic steel.
When magnetic steel and magnetic steel are attracted, the opposite direction should be put and then stuck.
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