Operation
Window kit installation（Take the example with three parts of tracks.）
1. Loose nut anti clockwise and unscrew such as Fig 1.
2.adjust the washer on board 1 at the sliding groove on board 2, and then insert the fixation board 2 in the fixation board 1 such as fig.2
3.adjust according to own window size and fix nut on the fixation board 1 clockwise such as fig.3
