5 Ton M929 Ctis Air leak?

[derby]

Our local Village has a few new toys. One of them is a 929? Dump. I have looked through 900+ pages of the wrong Tm and checked a few threads,no love.

The issue is the truck won't build air. It is leaking air from a pancake looking thing under the truck that has a wire harness connected to it. Near the drive shaft between frame rails. I don't know much about the 900's They know even less.

Any ideas, Operator error?

 

[RustyM923]

Pictures of leaking component?

 

[Gunzy]

Sounds like you are describing the air drier.

 

[RustyM923]

This pancake?

 

[swbradley1]

Or this?

 

[swbradley1]

I have looked through 900+ pages of the wrong Tm and checked a few threads,no love.

The issue is the truck won't build air. It is leaking air from a pancake looking thing under the truck that has a wire harness connected to it. Near the drive shaft between frame rails. I don't know much about the 900's They know even less.

Any ideas, Operator error?

My first suggestion is look in the correct TM.

 

[derby]

Which TM do I need?
There is a vent on the bottom of this unit about the size if your thumb that faces down. About 8" in diameter round,has alot of air lines and a wire harness with about 6-8 wires pluged in the side.

I can't get a pic until I go back after the Holidays.

 

[RustyM923]

You either need this:


or this:
http://www.imagelegacies.com/DiscoveryAirDryer.html

 

[swbradley1]

TM9-2320-272-24P-1.pdf pg 1354 or so. Enjoy

 

[Gunzy]

Now it sounds like your describing the ABS air control valve. A pic would help a lot.

 

[Suprman]

Probably the air dryer. If air is leaking from the center, insert finger in hole, push up. If it wont push up, squirt a little wd40 with the truck off or it will spray back at you since air is blowing out. Then try to push up.

 

[Gunzy]

Insert finger in hole.

 

[Suprman]

Funny but it works

 

[derby]

Uh, I was thinking the same thing........

Thanks for the TM I will dive into it tonight.

Also I prefer Log Cabin,