How do you find info on 505's like spec's?

[clairencappelli]

All i can find is the ifor 506 info but as there are lots of 505's on the road there must be a way of obtaining the info before going to Ifor Williams directly.

Does anybody know if this exhists and where i can find it?

 

[quirky]

http://www.horsetrailersales.co.uk/NewIforHB505.htm

Is this any help?