Bulldog,
DuckDuckGo is your friend!
Here's one video I found that may help you:
https://www.youtube.com/watch?v=8APYO2sZyJU
When I did this, I had the advantage of a rather large bench vise to hold my flange tool, so I could pull against it with the torque wrench. Also, I think the preload is more important than the torque spec, so I'd make sure not to overtorque the thing!
Hope this helps,
Tom