Re: My Class B Motor Home
You may be able to make an appointment with an RV repair shop, and pay a small fee, to have them put the rig on a lift, and explain what all the parts are, and how they work. Inside also. Things like the black & gray tanks, refrigerator, inverter, etc.....
It would be worth $50 - $100 to know what you have, and how it works. They may also have access to manuals for your installed equipment, and/or the Diamond RV manual.
2009 Roadtrek 190V, 5" lift - Build Thread
2004 Toyota 4Runner
2014 Honda CR-V
1965 Dodge Coronet 440