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Topic: How to Air up the bags? (Read 505 times) previous topic - next topic

How to Air up the bags?

Cannot get my home to crank... But in the meantime.  I need to air up the bags for possible towing.  What is the best way to get this done?  Thanks for your help and comments.
94 U300 off grid always on the lookout for a new modification.

Re: How to Air up the bags?

Reply #1 –
You will need a portable air compressor, either 110 0r 12 volt. Air hose with regular male quick connects on both ends.
You should have an female air fitting on your coach somewhere. {on mine it is near the propane tank] Turn key on and coach should go into travel mode and fill bags. You will need about 100 psi.
Jim
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: How to Air up the bags?

Reply #2 –
What are the issues with it not cranking? Dead batteries? or switch not working etc. It will probably be cheaper to start it than to tow it.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: How to Air up the bags?

Reply #3 –
the only female air fittings are on the bottom of each air tank located above the front axle.  Anybody else with a U300 know where this is located?  Thanks.
94 U300 off grid always on the lookout for a new modification.

Re: How to Air up the bags?

Reply #4 –
Any tow truck big enough to tow your coach will have an onboard compressor that the driver will attach to you air system.
This is necessary to release the spring brake, and keep it released while towing.
It will also keep your air bags inflated unless you have a very bad leak.
Jim
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: How to Air up the bags?

Reply #5 –
Never tow if you don't have to, as normal towing can do damage to trim, frame, drive line, etc.  Towing is a last resort.  Much easier to spend your effort on getting coach engine to crank.
To emergency air up bags, use an external compressor and if you have an air hose connection on the coach, connect it to compressor to fill tanks, turn ignition on to put coach in ride-height positon.  This is to be used only in an emergency as the external compressor will allow moisture to enter.

Re: How to Air up the bags?

Reply #6 –
OK, that did the trick.  The coach is now level.  Now to figure out why so little power to the switches.  Will update soon.  Thanks for your help.
94 U300 off grid always on the lookout for a new modification.

Re: How to Air up the bags?

Reply #7 –
Lower models don't have air connections from the factory. I had to add one on my u270.
1998 U270 34'

Re: How to Air up the bags?

Reply #8 –
My '93 U300 has an air hose in the small bay right by the steps. That's where we had air added when our compressor died. Mobile mechanic aired us up then followed us home (about two miles) to diagnose the real problem.

Re: How to Air up the bags?

Reply #9 –
Quote from: bob swanson –
the only female air fittings are on the bottom of each air tank located above the front axle.  Anybody else with a U300 know where this is located?  Thanks.
Wet tank, this will be the one fed directly from your engine air compressor, or more likely, the air dryer.
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.