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Not building air

Joe Ditchkus

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Could be the unloader valve in the compressor is messed up or some sort of restriction in the air line to the unloader. There are usually rebuild kits available.

If the truck has an AD-9 dryer, there are rebuild kits to tune them up. Are the air tanks blowing pretty clean when the tank valves are opened?

Not sure what size hardware you need to bypass without looking at it.


It doesn't cost anything to pay attention.

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