Community Forums

jaywhy · 04-06-2005, 06:32 PM

I would like to know if I can use the air compressor located in the front of the RV to inflate the RV tires, also, should the engine be running? I do not want to inflate the entire tire, just enough to keep the pressure at 110 in the front and 90 in the rear.

jaywhy · 04-06-2005, 06:32 PM

I would like to know if I can use the air compressor located in the front of the RV to inflate the RV tires, also, should the engine be running? I do not want to inflate the entire tire, just enough to keep the pressure at 110 in the front and 90 in the rear.

Trehcub · 04-07-2005, 02:39 AM

If you have a DSDP then you can use the air fitting to air up your tires.
The engine will need to be running, to air the tires. You will need to run the idle speed up on the engine to about 800 get the pump running fast enough to get the 110 lbs.

Steve Bloom · 04-07-2005, 05:57 AM

Yes, you may and i keep the engine running while filling my 295 tires. Make sure you make the connection when the engine is off and disconnect tje same way.

Digital Boy · 04-13-2005, 10:37 AM

I vote with Steve, but then, I often do.

I check my tire pressure before every trip. I bought a 50 foot air hose and top off all six tires as needed.

jaywhy · 04-13-2005, 12:52 PM

I would like to thank everyone for their reply. I bought extra hose to reach all tires, however, everytime I tried to put air into the tires, air would leak out. I did not have the engine running. I will try with engine running,but I would like to know how to keep the RPM up to 800.

Digital Boy · 04-13-2005, 03:07 PM

If you were using the air hose without the engine running then you only had whatever air remaining in your air tanks. As you remove air you lower the tank pressure.

By keeping the engine running I maintain 125 psi. That's plenty to bring a 100 psi tire up to 105.

Although my '98 Cummins engine does not have the ability, I understand that later coaches have some sort of switch to elect "high idle." Perhaps that is what was meant.

Personally, I think that so long as you let your air tanks fill up and your air bags inflate then your air pressure will be high enough to fill a tire with up to 120 PSI. I know. One morning on a trip through GA I woke up to a totally flat front right tire.

The problem was equal caught in the valve stem. I started my C8.3 Cummins. waited for the pressure to come up all the way and proceeded to bring the flat back up to 120 PSI, which I was running at the time.

Trehcub · 04-13-2005, 03:43 PM

This is done with the cruise control swithc if I am not mistaken. I think you just tap the resume/ acc switch.

I currently have a different brand of coach and there is a switch for idle up.

jaywhy · 04-23-2005, 11:42 AM

Once again thanks for the information.It works. It just goes to show the information one can receive on this web site is good.

Cruzer · 04-23-2005, 12:10 PM

Yep, turn the cruise control on, then press the resume switch to kick in the fast idle. When you want to lower the speed either press the cancel button or tap the brake pedal. If you try to fill the tires without the engine running, the smaller volume in that air tank will draw down what's in your tires, rather than fill them so you do need the compressor turning.