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Boyd Atherton (64.136.27.226)

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Posted on Thursday, September 16, 2004 - 6:44 pm:   

75 Eagle. Is there a way to manually air up the brake system without running the engine? Is there a place to air up using an air hose?

Thanks for the ideas about my clutch problem. I took tomorrow off so I can trouble shoot. Hopefully it's just linkage, but I'm thinking it's something more painful.
Greg Roberts (Gregeagle20) (24.175.221.41)

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Posted on Thursday, September 16, 2004 - 8:58 pm:   

There may be a tee with a air hose chuck and check valve already installed some where in the air system. If not, you can easily install one. Take a look in the engine compartment, behind the license plate (for towing), in the bays, or maybe near the air dryer. Good luck and happy hunting.
Abajaba (12.217.192.62)

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Posted on Thursday, September 16, 2004 - 10:54 pm:   

I don't know about the Eagle but in MCI there was a place in the air system to hook the shop air to the bus. It was plumbed in right after the air compressor before it went past the ping tank. So the air was put into the system at the very beginning of the system.

This was located on the curb side of the vehicle in the engine compartment.

BTW the ping tank is used to catch a lot of the oil and moisture that came out of the compressor. The fitting was a schrader valve like one finds on truck and car tires.

If you don't have one maybe one could be added in that same type of a setup.

Abajaba
Marc Bourget (209.142.38.81)

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Posted on Thursday, September 16, 2004 - 11:02 pm:   

My MCI-9 has the referenced schrader valve, but, better yet, it has a ball valve and a male airhose chuck. Snap in a shop hose from the Air Compressor, open the ball valve and you're quickly in business.

This is the type of setup that Gregeagle20 was referencing.

Onward and Upward

Marc Bourget
Gary McFarland (Gearheadgary) (68.250.96.41)

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Posted on Thursday, September 16, 2004 - 11:05 pm:   

I yanked the Schrader valve and put in a Female amflo coupling and I have a male/male adaptor that I can connect shop air.

Beat the heck out of standing there with a tire chuck.

Gary
BrianMCI96A3 (208.13.141.32)

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Posted on Friday, September 17, 2004 - 12:15 am:   

The one problem with using compressed air from an outside source to air up a coach is the moisture content of the compressed air.

The bus compressor output will have the same moisture content but the air dryer down stream will handle that.

Draining the ping tank on a regular basis will take care of most of the moisture... still, Bendix does not recomend using shop air to build air pressure, too many valves that hate moisture.

Personally, I think if you don't do it on regular basis you'll be okay.

For myself, I am planning on plumbing in an onboard compressor with an air dryer.

Brian
Catskinner! (63.190.145.250)

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Posted on Friday, September 17, 2004 - 1:54 am:   

Boyd

In the middle of the upper front bumper there
is a panel. Remove this panel and there will
be a 1/2" pipe plug. This is where you hook
up air to be towed. This panel may or may not
have an Eagle on it.

Good Luck!
Catskinner!
Sonnie Gray
72 0/5 Eagle 3406 Cat
Pottsboro, Tx
Gary McFarland (Gearheadgary) (209.128.79.46)

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Posted on Friday, September 17, 2004 - 9:14 am:   

"The one problem with using compressed air from an outside source to air up a coach is the moisture content of the compressed air."

thanks for mentioning that, the first thing I do when I setup an air compressor is install the best airdryer I can find. I just assume everyone else does the same.

I never wanted to run water through my air tools ($).

Gary
Boyd Atherton (64.136.27.226)

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Posted on Friday, September 17, 2004 - 9:34 am:   

Thanks for all the help. I found the female connector behind panel above the bumper, hooked up a hose and aired it right up.

Now I just need to figure out my clutch/linkage problem.
BrianMCI96A3 (208.13.141.32)

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Posted on Friday, September 17, 2004 - 10:13 am:   

Gary, making use an air dryer (and an oiler for air tools) is a really smart idea.

It seems to me that most compressors I've seen aren't rigged with either one.

Bendix Brake School stresses dry air for brake valves.

Brian
Gary McFarland (Gearheadgary) (209.128.79.46)

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Posted on Friday, September 17, 2004 - 10:35 am:   

Yeah, but if you hang an oiler off your compressor it really pisses off the paint guy.

:)

Gary
BrianMCI96A3 (67.76.66.218)

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Posted on Friday, September 17, 2004 - 10:06 pm:   

He he he, yep, those finicky paint guys, a few little oil droplets and they go ballistic!!

Brian
bruce king (67.170.101.3)

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Posted on Sunday, September 19, 2004 - 3:45 am:   

On my mci i've got that big bendix air dryer mounted on the bus. What about plumbing your alternate compressor to feed in through the input from the bus compressor, utilizing the existing air dryer?
Abajaba (12.217.192.62)

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Posted on Sunday, September 19, 2004 - 1:26 pm:   

That is what basically is done with the factory installation on MCI coaches these days. The shop air is put in where the pipe comes out of the compressor and then past the ping tank.

Imagine it this way.

Out of compressor through compressor governor. Through pipe to a T. Bottom of this T is where the shop air goes into. Right side of the T is output to another pipe to another T. The bottom of This T is where the ping tank resides. The right side of the T is where the rest of the bus air system gets it's air. The bottom of the ping tank has a valve that drains outside the bus right onto your shoe when you drain the ping tank. :-( The output of the ping tank REALLY STINKS!!!!!

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