Install adjusting nut to the tensioner rod and adjust parking brakes.
将调整螺帽安装到拉伸器杆并调整手刹车。
2
Can try to adjust the adjusting nut on the horn, such as the phenomenon can not be ruled out, is the quality of the horn, the need to replace the speaker.
可以试着调节喇叭上的调节螺母，如现象还不能排除，是喇叭质量的问题，需要更换喇叭。
3
If it's not convenient to adjust the whole machine, the client can unload the wind window, and revolve the nut 0.5 to 1 ring according to the worn conditions of the brake plate.