I have somehow become the one "anointed" to bring this beast back to life. It has been sitting 10+ years. No manual, no schematics. I have so far figured out that I don't know alot about this thing. From some simple testing, it appears to me that the gas plumbing has been royally boogered up. It appears that when you turn on the cut function, the cut feed to the torch is turned OFF. I don't understand the solenoid setups and can't seem to find an Airco website. Any help on this would be Any help on here would be most appreciated. It is a model 5072. Even a clue to where a manual might exist would totally rock!