Fuse box

[Kitester]

Hi to all!
I have just restarted my 300 project and have a few questions. The most important one at this time is about the original fuse box. I looked for a diagram but the best I can find is the hand drawn black and white pic in the operators manuel. No color codes are shown and the best graphic is a general line drawing of what is connected to what. So part of the question is "Where can I find a real wiring diagram with color codes and individual devices, i.e. red wire to roof fan?" And the second part of the question is "what did the 300 need 50amp fuses in the 12 volt fuse box for?" I guess a third question might be "What are people replacing it with or where can I find that part?" Thanks
in advance.

[Magnet18]

For a diagram, if you're lucky a service manual still exists for the 300, if not what you have is what you got

The 50a fuses, I can't guarantee, but probably for the battery charger

[OTRA15]

FYI there is a Classic Motorhomes sub-forum which includes your 310, with many threads loaded with details:
https://www.airforums.com/forums/f311/

In June 2020 you posted in the Sticky Topic in the forum above:
https://www.airforums.com/forums/f31...ml#post2371809

Re: 310 see also:
https://www.airforums.com/forums/f31...-a-178802.html
https://www.airforums.com/forums/f31...et-178642.html

Good luck.

[Kitester]

Originally Posted by Magnet18

For a diagram, if you're lucky a service manual still exists for the 300, if not what you have is what you got

The 50a fuses, I can't guarantee, but probably for the battery charger

Thank you guys. I did get some good information from your replies. I especially liked the info and pics of the gear vender installation. It is unfortunate however that the wire diagram in the manual is so lacking. If I was working on almost any other vehicle the diagram would list the components as well as show the wire size and color. Is there a service manual that can be bought like a shop manual? Where would it be available?