here are pictures of the gears. Now that it is pinned to both the front and the middle, you set the gears on the middle pole, and release the gears on the front pole. then you roll the backing all unto the back pole.
Gear closed
[ATTACH=CONFIG]37831[/ATTACH]
Gear open
[ATTACH=CONFIG]37832[/ATTACH]
all of the backing rolled to the middle pole and the gears are set
[ATTACH=CONFIG]37833[/ATTACH]