quote:

Originally posted by Jim & Barb:

It's factory built and the rating is 120psi.

Glad to hear you have a tank to do the job.

quote:

When I put the extenders on I will use pipe paste on the threads of the extender onto the valve stem. That should prevent an air leak there.

I'll put just a dap on the valve cap end and use the hex wrench to just slightly snug it up.

The rubber gasket in both the extension and metal cap should be sufficient to prevent leakage. I use Loctite grade C to hold my extensions on the stems. Just to prevent any loosening.

When I had to air up my tires at the storage place,I just started up the generator and ran my compressor off of the coach. The compressor was a craftsman 15 gallon with a 1.5 hp motor that operates up to 150 psi. This required no extra hoses or extention cords.

sk8er,

I was going to do that, however I was hesitant to try. I was not sure if the wiring inside the Barth would handle it without over heating or throwing a circuit breaker.

It seems I have the same compressor as you and when I tried to run it off the outside receptacles of the house it will throw the circuit breaker. The reason they are rated at 30 amps. My garage receptacles are rated at 50 amps.

I found a Good Year Tire Center about four miles from the house that will check my tire pressures and top them off at 100 psi as a free service. Maybe it helped that I have all Good Year tires on the Barth.

Another thing even if someone uses an air tank rated at 120psi ,and it is full, most likely it will only put about 60psi into the tire. As the pressure equalizes between the air tank and the size of a 22.5 tire. Of course the smaller the tire the more air would go in.

Thanks for the info. Good to know if needed.

Capt Jim
1985 Barth

Bill:

I have a quick connect to my air tank for the air brakes. I have used it a few times to top the tires off. I blead ofrf any moisture first. It seems to work OK. I carry a 50" air hose in the bus for just that reason. It was on the tank when I bought the Barth. Found it one day while crawling around under the bus working on my jacks.

ED.

Ed,

Could you take a picture of it.
I have been thinking of doing that, however I am unsure of where & how to do it.

I found a quick connect behind the front grill. I was told it is for putting air into the system to release the brakes so the unit could be towed if the air was down, not for getting air out.
I don't know if that makes any sense. I do know it is a little smaller ( or a different size) then the one on my compressor.

Capt Jim

quote:

Originally posted by Jim & Barb:

Another thing even if someone uses an air tank rated at 120psi ,and it is full, most likely it will only put about 60psi into the tire.

That depends on several things:

1. The size of the tank

2. The pressure in the tank.

3. The size of the tire.

4. The pressure in the tire.

In a typical situation, if the tire is a little low from sitting, which is pretty common, a portable tank can be very useful.

Airing the tires up from REALLY low takes more air than one filling of a portable tank.

old tread but am interested in the portable air compressor discussion.. Who is using what these days? heres an older 'whats the best portable air compressor article..'

Mike, Really good to have you resurrect old information so we can update.

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Here is my nickels worth of thought. Any air compressor that has a piston the same size as your pinky finger is JUNK. It is too small for the volume of air needed for the Barth tires. It is ok for your bicycle tires. Something more like the Pancake Compressor is what is needed for pumping up Barthmobile tires. Keep in mind if your Barth has Air Ride you should have air chucks to get air directly from the Barth Air System. With a long enough hose you can air up even the rear tires.