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Old 08-11-2011, 11:59 PM   #15
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Quote:
Originally Posted by mr300ce View Post
So.... last June I took my Bounder to Durango, Co. ....towed the Nissan 4x4.
New tires with 500 miles on them. All 6 tires stayed at 90 psi the whole 2000 miles. Now its been parked for 2 months, and guess what....they're still at 90 psi.

Why does everyone think they need a compressor along with them?? is everyone else losing air ???

And yes, I use proven acurate air gages to check them with.
Naw, the pressure in mine was set last March during my annual service at the Freightliner Service Center, Gaffney, NC. When I checked this morning before rolling over to spend the weekend in Gulf Shores they were all one pound high. Of course the temperature here in Pensacola in August is considerably higher than it was in Gaffney in March. When the temperature starts falling this winter (it can start easing off anytime as far as I'm concerned) or we get to go somewhere where there is some seriously cold weather, I'll be adding some air to compensate for the drop caused by the cooler/colder temperatures. My rear tires require 120 psi for my load. I've tried that with the on-board compressor and it doesn't work for me. I hate to have to un-hook and go to the expense of driving the 20 miles round trip to the truck tire shop just to reset the air pressure. The shop doesn't charge me anything for that but the time, trouble and expense of going there adds up. Besides, the guy actually doing the checking and setting is going to get a tip for his trouble, so add that in. I just find that in my case, at my age and in my health condition, it saves a lot of problems, creaks, moans and groans, strained back, arm and wrist muscles, sore knees, having to crawl under the coach to get the valve stem cap that I dropped and rolled the wrong way (Murphey's Law #17), and possibly some moderate foul language if I use a good quality external compressor. For me, it's easier and cost effective. I don't have it this trip, but I'm only 40 miles from home. If we're going any distance, it's going in the back of the PU. I hope I never need it on the road, but then, one my friends on IRV2 might need to use it should the time and circumstances be right.
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Old 08-12-2011, 12:00 AM   #16
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Originally Posted by fansill View Post
Can I not use my on-board air system? I was told by one fellow RV'er that he purchased a separate air hose with the proper fitting so he could use that....

Any ideas???

Faith
I use the air multiplier with the on-board air system as discussed in this thread. It works perfect for me. Not the least expensive option however.

Air Pressure Multiplier
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Old 08-12-2011, 12:43 AM   #17
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I bought a Coleman tank 120 volt unit at Lowes, goes up to 150 psi and does all I need, although I only need 100 psi in the new front tires rather then the 120 my old ones took.
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Old 08-12-2011, 12:46 AM   #18
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Originally Posted by slackercrust View Post
It only has a 33% duty cycle which may not be enough for some tires.
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Old 08-12-2011, 12:48 AM   #19
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Originally Posted by Dacotah View Post
FANSILL, yes you can and it works great!! I bought a 50' coiled air hose, a shutoff valve with a snap on connector and a tire fill unit with a built in gauge. The Freightliner air manifold on our coach was up front under the hood and installation is easy. To use the system just snap on the hose, put the engine on high idle with the cruise control resume button, and you have 130 PSI available to fill your tires quickly. I used this on a 5000 mile trip in July and it worked great. Hope this helps. DACOTAH
Tried for over an hour using this method, it wouldn't get my fronts up to the needed 120 psi. Now I have a Coleman 120v tank unit that does it.
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