Whoops? After the first couple postings and writing up a pretty long post, I now get that the post is too old and I find this new post? Is there any way I can transfer the post I have written on the original post to get it on this post?
Let's see if cut and paste will work for this much info!?
Okay, Got a plan!
First verify that the outlet you have in hand is the correct one as aproved for RV, not one for a drier! Often confused so best to check as easy move.
Click this snip for better view!
Attachment 187069
Make it has the rounded hole, not the EL shaped hole and also the RV cord has this shape to match!
That assures nobody can plug the Rv into a 240 Volt drier outlet!
I would wire from the generator to the outlet as a stand alone operation and then the shore power cord to load center as a different operation.
Which operation first is your choice!
Wire the ground (bare wire? ) to the center and white neutral to pin marked neutral on back of outlet, with hot (black?) conductor to the last pin.
This sets the onboard outlet to act the same as any shore power connection you find.
Then connect the shore power cord wires to the load center wires, color to color.
This lets the power all work when you are plugging into shore power, it just passes through this box. When you plug into the outlet on the box, it does the same except comes from the generator instead of shore power!
There "may" be times when the colors are not black and white but possibly black and red, so get the black in the right place and the rest on the remaining points!
Some can depend if somebody has changed things in funny ways!
I might also do it a bit different than what you currently have. That is a lot of stiff wire to work in one box and get an outlet mounted on top, so I might look at using the outlet in a seperate box. Depends on space and lots of choices you may want to make but I don't like to try to cram too much into one box if I have room for a second box!
And that also means which connections you do first or second is based more on what you see and want to do, rather than actual need!
Basic idea is the power cord needs to connect directly to the wires going to the load center as one operation.
The outlet needs to be connected directly to the generator output.
When you get done the Rv acts like a big table lamp and you can plug it into the shore power or the generator outlet??