1. Hook empty-load, outward travel at low speed and extreme position limiting at max radius is 5m jib(outward R=50m, inward R=7.5m), enable one switch of the radius limiter(outward and inward travel is controlled by its parting limiter switch), when the trolleying to and extreme position limiting at max radius, enable another limiter switch(ourward and inward limiter switch), then trolley stop travel, when travel it again, the trolley just travel in the center of the jib frame.
4.4.3 幅度限位器调整(结构调整方法见外购件说明书) adjusting method for radiuslimiter(the procedures is shown as the outsourcing instructions)(1)吊钩空载，以低速档运行，向外行至距最大幅度处5 米时(向外时 R=50 米，向内时 R=7.5 米)，幅度限位器中的一个开关恰好动作(向外，向内分别由一个限位开关控制)，当小车行至最大幅度时，另外一个限位开关动作，小车停止运行，再启动时，小车只能往臂架中央运行。
2. I wish that my parting words would be an umbrella, which can stop the strong sunshine and keep out the wind and rain for you on the journey.
愿我的临别赠言是一把伞，能为你遮风挡雨。
3. Long March, the speech has a five-Gongque history, temporary stop Mountain Xiangshui, into parting, we should Xi transplant of stem-ching, Kyushu over Lebanon yuan sprinkling of blood.
万里长征，辞却了五史宫阙，暂驻足衡山湘水，又成别离，绝檄移栽桢干质，九州遍洒黎元血。