While Carriage was a very well-built unit, probably no manual would be helpful to you--they are too generic.
There is a Carriage owners section on this forum if you scroll downward on the first page, maybe some info there.
Also:
https://www.findproductmanuals.com/l...rands+US+06-17
Also: do an internet search for "Carriage fifth wheels owners manuals"
And, Welcome to the Forum.
Joe