Adding Air To TIres

Topic: Adding Air To TIres (Read 1454 times) previous topic - next topic

Adding Air To TIres

September 17, 2019, 03:23:28 pm

I have a air hose in my propane bay for airing up tires.

Does this work from the Aux air compressor or from the air compressor from the engine?

Re: Adding Air To TIress

Reply #1 – September 17, 2019, 03:33:33 pm

Quote from: Super8mm – September 17, 2019, 03:23:28 pm

I have a air hose in my propane bay for airing up tires.

Does this work from the Aux air compressor or from the air compressor from the engine?

Both. But for airing up tires you'll probably want the engine running. Unless the stock aux compressor has been upgraded, it's not going to keep up very well for the pressure and volume of filling tires. It's more for low volume demands like keeping your air bags inflated.

Re: Adding Air To TIress

Reply #2 – September 17, 2019, 04:15:44 pm

Even with the engine running it can be a slow process. Works best just after governor cut out at 120 psi. If you are trying to get your tires up to 110 - 120 forget it. 120 is way too high for most coaches. Even at 90 psi sometimes I have to waste some air to get the governor to cut in, then wait for pressure to build.

Re: Adding Air To TIress

Reply #3 – September 17, 2019, 04:23:06 pm

I have a Viair compressor with it own pressure switch set at 115 psi hard piped to the wet tank.
It will fill the front tires to 110 psi via the air connection, but is very slow.

Re: Adding Air To TIress

Reply #4 – September 17, 2019, 04:34:44 pm

Thanks guys. I tried several things

1 bled down the air and tried to air up a jeep tire and aux compressor did not come on.
2 brought the air up on the coach and leveled it and shut off the engine, still wont air the tire.
3 started the coach and it pumped up the tire.

looks like the bottom line on mine is I have to have the engine running to air up a tire. Now I nee to get get another 25' of hose to reach the left rear so I can air up the inside dual

I have someone coming tomorrow to fix the slow leak but I want to add air so I am not just setting on one tire on that side

Re: Adding Air To TIress

Reply #5 – September 17, 2019, 04:35:43 pm

I have an SMC Booster Regulator. With that and my system air, I can quickly fill my tires to 115, or even 120.

I'll be at Grandvention and at the Calif Chapter MC rally in Temecula if anyone wants a demonstration.

Re: Adding Air To TIress

Reply #6 – September 17, 2019, 04:43:18 pm

I have a 130 psi air governor makes airing tires a breeze.

Re: Adding Air To TIress

Reply #7 – September 17, 2019, 04:44:45 pm

Thanks Tom, I was going to try and make it to Grandvention but other things got in the way. I was supposed to be in Branson but something else has come up so I am in Wichita for a couple of days and head to Denver Thursday then back to Wichita.

Re: Adding Air To TIress

Reply #8 – September 17, 2019, 06:15:39 pm

My top pressure from the D2 governor is 130.

Re: Adding Air To TIress

Reply #9 – September 17, 2019, 06:53:14 pm

https://www.youtube.com/watch?v=QDOqCk6dTuo

Re: Adding Air To TIress

Reply #10 – September 17, 2019, 07:37:00 pm

Quote from: Caflashbob – September 17, 2019, 06:15:39 pm

My top pressure from the D2 governor is 130.

Not sure from the D2 I get 110 to the tanks for the bags, but I only run about 90 psi, I dont carry a lot of stuff with me

Re: Adding Air To TIress

Reply #11 – September 17, 2019, 07:51:23 pm

Thanks Twig, very good video

Re: Adding Air To TIress

Reply #12 – September 17, 2019, 08:13:27 pm

I agree with Tom, I had a booster for my Newell and it does work fast to air up. Mine was set at about 160 psi and it's basically an air operated air pump that increases the air pressure.
However now I'm running my fronts at 90-95 psi and rears at 85 psi so not a problem with the engine running.

Re: Adding Air To TIress

Reply #13 – September 17, 2019, 08:18:37 pm

At 130 top pressure and 110 cut in you can fill your tires and the brakes are noticeably stronger

Re: Adding Air To TIress

Reply #14 – September 17, 2019, 09:23:44 pm

Look at your air system schematic. In my coach line 57 from the small compressor is isolated from the aux air hose connection by a check valve. If you are getting air out of your aux air connection it comes from the rear brake service tank.

Re: Adding Air To TIress

Reply #15 – September 17, 2019, 09:54:10 pm

I have not found an air chuck yet on my 99 U270, does anyone know?
How do wrecker trucks hook to out air brakes if we are been towed?

Re: Adding Air To TIress

Reply #16 – September 17, 2019, 09:57:31 pm

Quote from: Irish – September 17, 2019, 09:54:10 pm

I have not found an air chuck yet on my 99 U270, does anyone know?
How do wrecker trucks hook to out air brakes if we are been towed?

They use a male to male fitting hooked to your air chuck, which I am sure you will either find, or find where it was removed.

Re: Adding Air To TIress

Reply #17 – September 17, 2019, 10:13:43 pm

Quote from: "Irish" – September 17, 2019, 09:54:10 pm

I have not found an air chuck yet on my 99 U270, does anyone know?

David,
On a '99 U-270 it would have been an option that could be added, not standard like on the 295 and 320

Mike

Re: Adding Air To TIress

Reply #18 – September 17, 2019, 10:17:00 pm

Ok Mike
Thanks, thought was what it was
That's just one more thing to add to my list of never shortening things to do!

Re: Adding Air To TIress

Reply #19 – September 17, 2019, 10:20:56 pm

I have seen my buddy use the pressure booster. You are adding wet air to the tires. No no

Re: Adding Air To TIress

Reply #20 – September 17, 2019, 10:45:15 pm

Super 8 weigh your front and rear axles at a local grain elevator or coop, then download your tire pressure/load chart for correct tire pressures, my coach tires are listed at 110 psi max. With my axle weights and tires I am underloaded on the chart which ends at 75 psi. Interesting enough that is close to the coach data plate # psi of 75 front/ 80 rear. I started my journey home on 105 psi tires, by the time I got to Winslow AZ. I had bled them down to 85.

Re: Adding Air To TIress

Reply #21 – September 17, 2019, 11:16:07 pm

Quote from: Old phart phred – September 17, 2019, 10:45:15 pm

Super 8 weigh your front and rear axles at a local grain elevator or coop, then download your tire pressure/load chart for correct tire pressures, my coach tires are listed at 110 psi max. With my axle weights and tires I am underloaded on the chart which ends at 75 psi. Interesting enough that is close to the coach data plate # psi of 75 front/ 80 rear. I started my journey home on 105 psi tires, by the time I got to Winslow AZ. I had bled them down to 85.

My Uniroyal at max is Front 105 and rear 87, I am running 95 and 85.

When I get home in 2 weeks I will weigh it when I fuel up and let her rest for 2 weeks before I take off again.

Re: Adding Air To TIress

Reply #22 – September 18, 2019, 12:21:20 am

Quote from: jcus – September 17, 2019, 04:23:06 pm

I have a Viair compressor with it own pressure switch set at 115 psi hard piped to the wet tank.
It will fill the front tires to 110 psi via the air connection, but is very slow.

I also have the Viair compressor with a added tank. Works great. Recommend it.

Re: Adding Air To TIress

Reply #23 – September 18, 2019, 04:46:54 pm

Quote from: Super8mm – September 17, 2019, 03:23:28 pm

I have a air hose in my propane bay for airing up tires.

Does this work from the Aux air compressor or from the air compressor from the engine?

The only time I use the on-board air is when we're getting ready to break camp and the engine can run to be warm under load. Otherwise, at the pier, long term,I have this so I don't have to short start-up (bad for the engine and noisy for the neighbors).

Re: Adding Air To TIress

Reply #24 – September 19, 2019, 11:19:32 am

Hey Bruce, How do you change the D2 to 130 psi?
BTW...Twig uses a portable pancake air compressor. It was a good video, though.
Does anyone know a SPECIFIC name brand and model of the kind of air filler that you can just attach to the stem??
Thanks

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