Air Assist Steering Drag Link Valve Problem

[1958 M274]

We are having a problem with the drag link load sensing valve on a M35A3 owned by the military museum that I work for. On this truck the valve just dumps the air straight through to the exhaust hose when the steering wheel is turned. No air makes it to the air chamber on the tie rod.

I tried searching the forums with no luck. I found someone that had a problem with air leaking through the valve any time it had air supplied to the steering assist system, but ours only leaks when the wheel is turned and it should be supplying air to the ram...

We tried taking the valve apart, but ran into an issue. When disassembling the valve, there is an allen head plug inside about 3/4" in diameter. It takes a 3/8" allen wrench and has lock tite or something on it. We can not get this plug out.

Does anyone have an exploded view of this valve?

I looked through our manuals at the museum and couldn't find anything. Any help is greatly appreciated!
Thanks,
Joe

 

[AceHigh]

Sounds similar to what these guys have...

Brockway Trucks Message Board • View topic - Air-O-Matic steering question

The Air-o-matic is a commercial unit as well as military.

 

[doghead]

This thread was never updated. I wonder how they did.

http://www.steelsoldiers.com/deuce/58229-air-o-matic-troubleshooting.html

 

[1958 M274]

Thanks for the information. From what was said in the the links y'all provided, it looks like that part was not intended to be repairable. I saw where other people were having a hard time getting theirs apart too. We twisted off a Snap-On 3/8" allen socket on an impact wrench trying to get it apart! I'll let y'all know when we figure something out.
Joe

 

[gimpyrobb]

Take pics for us too!