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1980, 1981, 1982, 1983 Page 1 of 2 AIR ROUTERS, NO. 1985 AIR DIE GRINDER AIR SUPPLY These power units are designed for operation on clean, dry air at a Pressure of 90 p.s.i. Line filters, lubricators and a pressure regulator will insure that the air supply is properly conditioned. Even the best air systems accumulate dirt and moisture over a period of time. Blowing out hoses and air lines periodically will help prolong motor life. HOSE A special 3/8 I.D. hose is provided. It is more flexibl