Coachmen has a wide collection of model owner's manual which are all free downloads. Go to the website
https://www.CoachmenRV.com/ once open pan down the page to the bottom of the page on your LEFT and click on MANUAELS. Now select model/unit, and YEAR, say RV and then RV type/model, year. Lots to download as well as good informational checklist, safety, which you can printout or download into a file. I have all of my model YEAR manual's and I think they go back 8 years or more. This enclouded trailers, 5th wheel trailers, lots of good stuff.
I would even say if you had other than a Coachmen, but say you know they use the same kind of equipment. That may be helpful if in need.
__________________
2021 Coachmen Galleria 3500XD, 4FL, with Li3.
We are H.L. and Jan, from the Sunshine State on Florida's west coast.
"Remember every camping trip is an outdoor adventure and begins and ends with a road-trip, to and from the campsite. Drive safely with your cargo"