engine won't turn over

That chuck is commonly used to fill tires and to connect air from a wrecker.
Rig must have air to release the brakes.

Thanks Bill, mine look the same as yours. I'm at home and just trying to get the coach ready to go. I parked it the middle of nov. When I got back from a 7 state trip and should of plugged it in to keep batteries charged. Next Wenesday is the next nice day so I'll go out and check all the connections again. The air thing in the manual is what's screwing me up, but what can I say?

You said your manual says to add air from an outside source, this seems strange - think of all of the MHs that sit over the winter when not being used - ours usually sits stateside all summer not being used, and there's no air in them when the owner arrives and goes to start them.

Anyways, that's what your manual says, so all you can do is go with it. Someplace under your front cowling "should be" an air connection because air pressure is required to release the brakes for towing when broke down.

Under your front cowling you should have either an air chuck itself or a place to put one. Just to the left of center in this picture is my air connection (the gold or brass colored thing) that can be used to either air tires up or put air into the system. On my MH, it's just above and to the left of the generator, but that was Fleetwood's preference of where to put it.



A closer picture. Note what the air chuck is screwed into is a minfold to supply air to many hoses. One of the plugs was pulled out and the air chuck was put in. I don't know if the MH came that way from the factory or the previous owner installed it.



There are two common styles of air chucks and the both look basically the same on the outside. You won't know which one you have until you try to plug the male air hose fitting into it. (On my to-do list is install one of the other type also so I have both)

Anyway when you find the air manifold, if it doesn't have a chuck, go buy one of both as you might as well install both at the same time. Note the Teflon tape so the air doesn't leak. Mine requires an Allen wrench to take out the plugs - do have one of the right size before you go to the store for the air chucks?

Then you can wonder around the RV park and see who you can borrow an air compressor from - the park maintenance people may be able to help you.

Let us know if it really was low air pressure preventing you from starting.

Bill

No, the discharged coach batteries should not effect the starting of the rig.

Some one left the battery disconnect switch open. :)

Bad batt install..bad cable ends...bad ground...Do you have a bridge switch to bridge in your house batteries?...Could even be a bad ign switch..

Well its raining now so will check all connections on the next nice day. I did noticed all 4 of the house batteries need charged also, could that be the problem?

Humm. Diesel.. now some Diesels (most of the RV ones I suspect) Start off the battery.. But I do recall in days of old when Truckers were bold they had Air Start diesels.. yes, compressed air started them.

IF this is the case there should be a standard "Tire type" valve somewhere on an air manufold.. That's how you do it.. Alas, I have no clue as to where.

Now to tell which you have. Listen to a neighbor start his Diesel. Air starts are VERY VERY NOISY compared to electric starts.

Finally, You may have goofed on the battery install.

Same batteries, (new last july), so post are in same position. I even labled them "front & back" on the sides before removing. Just removed the link cables so that all the connections were untouched. They are fully charged, checked 13.7 after removing from charger. In natural, foot on brake. All lights come on, wait till ready to start. Lights all dim when I turn the key then come back on when I release. In my manual, in trouble shooting under "engine will not crank" , cause-and-effect pressure low in tanks, correction - increase air pressure with external air source. I'm stumped!

EDIT FOR CORRECTION; Lights don't dim, what I meant was, I wait till all lights go out on dash that do and wait for the Wait To Start light goes out.

These rigs do not need air to start. They are started by electricity and a larger starter motor. That motor draws a lot of current. When you turn the key to the "start" position do the dash lights dim or go off? Are you waiting for the grid heat light to turn off before trying to start?