Disassemble Renault 11 speed box

Hello, I am new in the forum, I need urgent help of videos or tutorials of how to disassemble a fifth Renault 11 speed (I think it is equal to that of Renault 9), since a ruleman that disarmed inside broke my housing and I would like to weld it and change the ruleman. The box was removed with engine and everything from the car and then easy separated from the clutch system. But when trying to open it, open like a centimeter to the entire return and I don't know what it retains it to finish warm, that's why I need any video, explanation, diagram, ... thanks ...

You have to get the 5th fork, the 5th pine nuts, the balls of the rods; You hit the rods to go down at the same time. The housing is already coming out. Keeping out is quite difficult. To block the axes and loosen the nuts you have to put two marches at the same time.

After getting the pin from the fork of 5th you select a march with the selector and put the 5th forcing the fork down.