u need pneumatic tool, az seen on youtube....or locking tool..
also u can make ur own, think its on web too..
2planks of stiff metal and 3 m10 screws..its easy..made my own..it works..
but ull need to watch for Nm, do not overscrew...
1.own locking tool
2.Nm key
3.table for bring on clutch
4.white paint pencil for marks on clutch screw