Hi Kevin, thanks fro replying

Well, in the meanwhile I've discovered that is possible to remove the fron door where there is a such of device to install the smoke generator, isn't clear how or which one, take a look to this photo:

[URL=http://img517.imageshack.us/i/p1080690u.jpg/]image[/URL]

the device seems to be fixed to the loco frame and for sure it isn't able to fit the Seu nr. 11.

any idea?

Thank you
Mirco