air valves

[exoilfld]

There are 2 valves at the rear. One has a tag that says "service" and one says "emergency". any idea what they are?

 

[Jgreg49]

They are for trailer air brakes. Your emergency side fills the tanks on the trailer and the service side provides the signals for the trailer brakes to engage. You can also use the emergency side gladhand to use small tools. Like a tire chuck, air blower, small impact wrench.

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[exoilfld]

I am confused. There is no outlet on the valves.

 

[Jgreg49]

Someone may have removed the gladhand. Do you have a picture? I will take a picture of mine shortly

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[Jgreg49]

Here is the emergency side. Service side will look similar but is blue. The piece sticking out towards the rear is the gladhand. The other picture is the fitting on the ball valve behind the plate.

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[exoilfld]

What i have is just like your picture. The air line is attached to the valve but nothing else. I have a picture but have no idea how to attach them. I am puter challenged.

 

[Jgreg49]

The other ends are on the trailer. I went to my local trucker supply store and got an air line kit and put an air tool quick connect on it.

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[Jgreg49]

As far as uploading a picture from a PC I'm not sure on.

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[exoilfld]

I am going back to the shop and take some more pictures. Back after a while.

 

[cattlerepairman]

The glad hands are a standard truck supply item (that is probably why they went AWOL on your truck). Just get a pair at any truck stop and screw them in.

 

[doghead]

No need for anything on the air outlets(after the valves).

 

[exoilfld]

I took more pictures but have not been able to attach them. Basically, the glad-hand has an elbow screwed into the back that goes into a ball valve then into the air line. There must be some connections between the glad-hand and the air line that are not on my truck.

 

[Jgreg49]

Have you looked inside the frame rail? They might be hard to track down. Maybe someone cut the line or its plugged

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[exoilfld]

Took more pictures but have not been able to attach them.

 

[exoilfld]

Basically, the back of the glad-hand goes into an elbow, then a ball valve, then the air line. Must be some connections missing.

 

[porkysplace]

Basically, the back of the glad-hand goes into an elbow, then a ball valve, then the air line. Must be some connections missing.

You might want to spend some time reading this ;

TM9-2320-209-10-1.pdf
TM9-2320-209-10-1 Operation, Installation and Reference data for the M35 series, Operator Level.

GTA-9-1-1851-8.pdf M35 complete diagram of with descriptions of all components.


TM's for the Deuce