Originally Posted by tlbeck1985
Hello everyone! We are purchasing our first bus tomorrow (hopefully!) and I'm trying to get a jump on the wiring diagram for our home bank, and well just about everything else lol. Being an electrician (apprentice) I'm anxious to start drawing this all out. I'm not having any luck with google or other forums. I was hoping one of you might be able to point me towards a service manual and/or wiring diagrams. Thanks in advance!
Also, after reading through a lot of these posts I had a question. Why are a lot of you running solar power or a generator instead of bringing the existing circuit from the engine bay to a disconnect, and then to your battery bank. If you're gonna burn fuel in a generator, you might as well use the one that came in the bus. This could also be a lifesaver if you were to lose a battery in the starting system. Close that disconnect and use your home bank to start the bus in an emergency situation. Just thought I'd share and see what you more experienced electricians thought about that.
First of all welcome to the forum. Not sure how much you have read here electrically. What year of apprenticeship are you in? How much DC theory have you studied? Have you any direct dc experience on vehicles?
I take it you are getting to know your bus electrical system.
For most of us, our buses don't come with onboard generators, did yours?
" If you're gonna burn fuel in a generator, you might as well use the one that came in the bus." Wrong choice of words there? Did you mean the bus alternator? So running the engine to have ample dc power for your needs? Wrong move there as another poster has already stated.
Alternators are not designed for that at all, only to top up the bus electrical system and starting batteries. Not many come with a "house battery" system. We add these. So that is what the alternator is built for, not extended recharging caused by house battery useage. That's where isolators come in handy and can be added. Read the current thread on isolators.
Your way wastes fuel, adds hours to everything electrically and mechanically and not at all cost efficient in any way.
Like I said, not knowing your background sure makes me wonder about your questions or theory.
When others talk about charge controlling etc, I am not sure of their knowledge either. A good battery charger is all you need that doesn't overcharge thus you don't have to babysit it. But it's not a bad idea to keep your eyes on it anyway as one never knows when things go wrong.