Can't remember the thread, but somewhere on this forum is a downloadable service manual, if you can't find it I have it & will pass it on if you PM me.
I got my electronic copy here on the site and bought a printed and bound copy off ebay. The printed copy is great for while working on the bike and I keep a digital copy on a storage stick inside the bike (both a CD version and USB memory card) in case I break down away from a Triumph dealer and the tech needs repair info.
Just remember that there is a difference between the manuals, one is for Touring and one is for Standard/Classic/Roadster.