Disc phenomenon freight electric bikes, how to deal with

 1, it is determined by what is face runout is caused. Inspection methods: from the large support, the front wheel off the ground, light hand turn the wheel, where to find much resistance. That point grinding disc, marked with a red marker. And in the three bolts marked 1, 2, serial number, and remember the original installation location.


    2, the cargo electric bikes front wheel removed. Then remove the disc. This is most troublesome, is a bit difficult, screwing the three bolts with a hammer to knock before Allen, Allen plate or wring also screwed down.

    3, the cargo electric bicycles discs get clean, put on a clean glass, stepless disc side down. With a thin piece of paper next to the hard disc plug, as are stuffed into, described the disc is not deformed, say Mingrui face runout caused by the hub.

    4, the disc distortion must be relatively flat. This is not difficult, there are friends in the machine shop of the most easy.

    5, the hub will use the Swiss uneven surface of the compensation method. That is the method in 1.2.3 plus sheet positions being added to the sheet, the sheet is cut by the skin of cans. Combined with the above grinding disc plus point to determine the location of the sheet, depending on everyone's analyzes.