How to install a Dudley concealed cistern toilet lever?

[Jeff of Shepshed]

Any advice as to how to install a Dudley concealed cistern toilet lever? The pack has three nuts but no instructions as to where they go.

 

[fowlerboi]

if thats any help

 

[fowlerboi]

It looks like the first nut to the handle fixes it between the back of the finished surface and the handle.

The 2nd and 3rd nut fix either side of the plastic cistern