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Available air pressure from coach for tire servicing?

Yahoo Message Number: 22228
For the first time, I connected a hose to my air connector in the electrical bay and tried to put air in the left front tire. I just wanted to see if it would work. When I tried to pump air into the tire, I didn't hear anything going in. I already had 110 PSI in the tire and was wondering if the coach system will pump any higher than 110. I had the engine running and pressed on the hose chuck to verify that there was pressure in the hose. Does anyone know the max air pressure I should expect to see with the coach system? Thanks.

Larry, 2003 Allure #30856

Re: Available air pressure from coach for tire servicing?

Reply #1 –
Yahoo Message Number: 22231
Quote from: Larry Feather"
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Larry,

Welcome to the "be patient" club. If you had 110 in the tire to begin with and trying to put more pressure in, you have to realize that at max you coach compressor is only going to put out somewhere between 120-125 before the spit valve exhausts excess pressure. That means at the very best you have about 120 psi pushing against 110 psi in a rather large volume container, the tire. The 10 psi differential will take quite some time to make any difference in your tire pressure. It will work but you must be very patient and not expect more than an equalization between the two pressures. Further, don't expect the coach pressure to remain at 120, it will go below that level before the pressure controller allows the comprssor to turn on. For a practical test---sit in your coach with the engine running and when the pop-off (spit valve) pops watch the pressure gage on your dash to see how low it goes before it begins to rise again. To expedite this process pump your brake lightly to lower pressure at a comfortable rate. Good luck.

Lyle Wetherholt
04 Intrigue, 11740
 

Re: Available air pressure from coach for tire servicing?

Reply #2 –
Yahoo Message Number: 22263
OK thanks Lyle, but it appears that the brake air system is not tied into the tire servicing system (or air supension). I suspect this because I had to change out the air chuck on the MH and in the process, dumped the air from that system via the dump valve for the suspension. After I changed the air chuck, I started the motor and noticed that both brake gages promptly showed~ 100 PSI immediately after start-up. It appears that the brake system didn't bleed down when I dumped the air from the suspension, so I assumed that the air servicing system is separate from the brake system. Just wondering if the air suspension/tire servicing system (with no gage) is supposed to be the same PSI as what the brake pressure gages are showing? Thanks

Larry, 2003 Allure #30856

Quote from: Lyle Wetherholt
>

Quote from: Larry Feather"

Larry,

Welcome to the "be patient" club. If you had 110 in the tire to [/quote
the tire to

begin

Quote
with and trying to put more pressure in, you have to realize that at > max you coach compressor is only going to put out somewhere between > 120-125 before the spit valve exhausts excess pressure. That means

at

Quote
the very best you have about 120 psi pushing against 110 psi in a > rather large volume container, the tire. The 10 psi differential

will

Quote
take quite some time to make any difference in your tire pressure.

It

Quote
will work but you must be very patient and not expect more than an > equalization between the two pressures. Further, don't expect the > coach pressure to remain at 120, it will go below that level before > the pressure controller allows the comprssor to turn on. For a > practical test---sit in your coach with the engine running and when > the pop-off (spit valve) pops watch the pressure gage on your dash

to

Quote
see how low it goes before it begins to rise again. To expedite

this

Quote
process pump your brake lightly to lower pressure at a comfortable > rate. Good luck.
Lyle Wetherholt
04 Intrigue, 11740
>

> For the first time, I connected a hose to my air connector in the > > electrical bay and tried to put air in the left front tire. I

just

Quote
wanted to see if it would work. When I tried to pump air into

the

Quote
tire, I didn't hear anything going in. I already had 110 PSI in

the

Quote
tire and was wondering if the coach system will pump any higher

than

Quote
110. I had the engine running and pressed on the hose chuck to

verify

Quote
that there was pressure in the hose. Does anyone know the max

air