Maintenance should first check the tire pressure, wear, nut loose or fall off, remove the twins or tread on the inserts and nails and other sharp objects.
养护时首先应查看轮胎气压、磨损状况，螺母有无松动或掉落，除去双胎间或胎面上的嵌入物及铁钉等尖利杂物。
Then loose the rocker nut of journey switch, and adjust the rocker to front, if after adjusted for many times still not available, then please check the journey switch whether was damaged or not.
把行程开关摇臂螺母松开，将摇臂往前调即可，如多次调整无效，请检查开关是否损坏。
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