Not able to move my range slector

You need to set a dataSource or startValue, endValue like in the demo.
jsfiddle updated: http://jsfiddle.net/v5LTM/3/

With DataSource:

dataSource: [
    {arg: 0},
    {arg: 1},
    {arg: 2},
    {arg: 3}
],

With startValue/endValue:

scale: {
    //...
    startValue: 10,
    endValue: 20,
    placeholderHeight: 20
},