It is best not to use a high pressure water gun, must be used, the water pressure is not too large, easy to hurt the car do not use a high pressure water gun to flush the shaft, flower drum, so that the bearing inside is easy to water, lubricating oil will be washed away, the lubrication will be reduced for a long time, serious rust, silt, with water pipe to wash away the sediment, dry water with cloth, and so on the chain dry water, chain oil