Originally Posted by
Dex
Gus,
In regards to plumbing off of your truck. Do you put a regulator in or a water separator? Or is it tank, valve, hose, tool?
Most trucks today equipped with air brakes have an air dryer before the wet tank, I take my air from the dry tank. The compressor on the truck cuts in at 60 psi then quits producing air at 120 psi. You could fiddle with the governor to get a higher cut in pressure with more psi at the top end, you could also install a larger air tank but by doing so it's going to take longer to reach that magical 60 psi which the maxi brakes require to release before driving anywhere.
Single stage compressors will not last very long if you jack the top end up.
A-United in Surrey BC was one of the largest auto wreckers I had ever seen, they had a separate yard for every make of car or truck then a separate yard for the heavy trucks. They eventually went into receivership, any how that has nothing to do with what I want to say.
In each yard they had an old beater with a cutting torch, tools and air for each yardman. The air compressor was nothing more than a Ford piston type AC compressor, on the air intake side they had a can fitted to the intake air line, inside the can a lightly oil soaked rag to act as an air filter, for an air receiver a 100 lb propane tank. At the air tank a pressure switch hooked into the 12 volt electric
magnet, the pressure switch just an off the shelf compressor switch.
Not sure what pressure they had but it was enough to run an impact. The only thing I would like to see changed here is the use of the propane tank as an air receiver, unless the tank was one of those LPG tanks from an automotive application. And be sure to use a pressure relief valve with the proper setting.
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