Only a very few companies produced actual owners manuals specific to certain models or groups of models. Winnebago motor homes was one, there are a couple of others. There is nothing special in yours that cannot be figured out. Find the data plate for the water heater, the stove the fridge, etc and start searching for installation and owners manuals, and if you find applicable owners manuals, get them too. Save all to a dedicated thumb drive so you wont lose them and will have them with you.
Looks like they were into truck campers also. From looking at a pic of a data plate online, it appears they were a division of/or produced by/for Fraserway RV Centre, Clearbrook BC. Fraserway is now a large RV dealership with numerous locations but the one in Abbotsford is the one you might want to talk to. (those are the folks who had the huge fire last year during the floods and lost about half of their inventory)
Otherwise I assume your 5th wheel looks something like this
Web sites to search include.............................
RV tech, service and owners manual sources.
Technical Service Manuals – PDX RV
Bryant R.V. Services
http://waterheatertimer.org/pdf/ (scroll down to Atwood and Suburban)
Service Manuals - My RV Works
rvrepairguru.com is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, rvrepairguru.com has it all. We hope you find what you are searching for!
rvrepairguru.com
Free RV Manuals
Component Manuals Search | Forest River Inc., A Berkshire Hathaway Company (even if not a Forest River, they may have the manual you need)
Prime Time has partnered with top component manufacturers. Use this search to find manuals for your RV.
primetimerv.com
Service/User manual Downloads – RV Refrigerator Repair
Your RV Refrigerator boiler operates at about 350 degrees all the time, but even a brief time off-level, like driving up a hill, can send that temperature sky-rocketing. Events like this produced a lot of thermal stress in the fridge boiler, stress that causes the metal to fatigue and the...
www.arprv.com